Term Index (T)
- T:
- T-type star (T): brown dwarf with a temperature in the vicinity of 1000 K
- tesla (T): unit of magnetic flux density
- timescale (t,τ): general length of time something takes
- T association: stellar association with T-Tauri stars
- T dwarf:
- brown dwarf (BD): star-like object with less mass than a star
- T-type star (T): brown dwarf with a temperature in the vicinity of 1000 K
- T Tau:
- T Tauri: variable star taken as example of young star
- T Tau N:
- T Tauri: variable star taken as example of young star
- T Tau Sa:
- T Tauri: variable star taken as example of young star
- T Tau Sb:
- T Tauri: variable star taken as example of young star
- T Tauri: variable star taken as example of young star
- Télescope à Action Rapide pour les Objets Transitoires:
- TAROT: network of telescopes to catch GRB optical counterparts
- TŻO:
- T-1:
- T-2:
- T-3:
- T-class:
- T-type star (T): brown dwarf with a temperature in the vicinity of 1000 K
- T-class star:
- T-type star (T): brown dwarf with a temperature in the vicinity of 1000 K
- T-mode:
- T-ReCS:
- T-Tauri star (TTS): type of variable pre-main-sequence star
- T-type star (T): brown dwarf with a temperature in the vicinity of 1000 K
- t0:
- Lambda-CDM model (ΛCDM,LCDM): Big-Bang cosmological model with a cosmological constant and cold dark matter
- seeing: apparent blurring and twinkling of objects seen through atmosphere
- TB:
- TBB:
- TC:
- Te:
- elastic thickness (Te): measure of the thickness of a sagging layer of a planet surface
- Teff:
- Teph:
- time standard: method of designating points in time and quantifying time periods
- Teq:
- tH:
- Hubble time (tH): approximation of the age of the universe
- Tn:
- elastic thickness (Te): measure of the thickness of a sagging layer of a planet surface
- TVir:
- virial theorem: average kinetic energy equals half the average negative potential energy
- TA:
- Tabby's Star:
- TAC 1.0:
- TAC 2.0:
- TAI:
- terrestrial time (TT): current measure of time for astronomical observations on Earth
- TAIGA experiment:
- Tunka experiment: Russian Cherenkov detector aimed at cosmic rays and gamma rays
- tail:
- comet: Sun-orbiting object with coma and possible tail
- TAIPAN: multi-object spectrograph with robot fiber-positioner
- Taipan Galaxy Survey:
- TAIPAN: multi-object spectrograph with robot fiber-positioner
- Taiwan:
- TALE:
- TAM: non-gray-RT 3D model of Titan's atmosphere
- TAMA 300: small prototype gravitational wave detector in Japan
- TAMS:
- tangential velocity:
- TAO:
- TAP:
- TARA:
- Tarantula Nebula:
- TAROT: network of telescopes to catch GRB optical counterparts
- TAROT telescope:
- task:
- task-based parallelism (TBP): breaking a computation into tasks that can be run in parallel
- tau:
- tau neutrino:
- Tau-Aur Complex:
- Taub spacetime: early mathematics for a rotating black hole spacetime
- Taub-NUT spacetime: early mathematics for a rotating black hole spacetime
- Tauras A:
- Taurus Auriga Perseus Complex:
- Taurus Dark Clouds:
- Taurus Molecular Cloud:
- Taurus Molecular Cloud 1 (TMC-1,TMC): nearby star-forming region
- Taurus Molecular Cloud 2:
- Taurus-Auriga Complex (Tau-Aur Complex): nearby star-forming region
- Taurus-Auriga Region:
- Taurus-Auriga SFR:
- Taurus-Auriga T association:
- TAUVEX:
- Spektr-RG (SRG, SXG): Russian-German X-ray observatory launched in 2019
- Taylor column:
- Taylor series:
- Taylor series expansion:
- Taylor-Proudman theorem: theorem regarding movement through a rotating fluid
- TB:
- TBL:
- TBP:
- TBTF:
- Tc-rich star:
- TCB:
- time standard: method of designating points in time and quantifying time periods
- TCG:
- terrestrial time (TT): current measure of time for astronomical observations on Earth
- TCS:
- TD:
- TD-1:
- TD-1A: 1970s European observatory-satellite with UV telescopes
- TD-1A: 1970s European observatory-satellite with UV telescopes
- TD1:
- TD-1A: 1970s European observatory-satellite with UV telescopes
- TDB:
- time standard: method of designating points in time and quantifying time periods
- TDE:
- TDF:
- TDT:
- time standard: method of designating points in time and quantifying time periods
- TDV:
- TE:
- technetium:
- technetium star: star showing technetium absorption lines
- technique:
- technology:
- technomarker:
- technosignature:
- TECP:
- Phoenix: Mars polar-region probe launched by NASA in 2007 with lander
- tectonic activity:
- Teegarden's Star: nearby red dwarf
- Teff:
- TEGA:
- Phoenix: Mars polar-region probe launched by NASA in 2007 with lander
- Teide:
- Teide Observatory: observatory on Mount Teide in the Canary Islands
- telegrapher's equations: two equations describing a transmission line
- telescope: instrument to observe at a distance
- AGILE: Italian space gamma-ray observatory
- AKARI: Japanese space infrared telescope
- ALEXIS: 1990s soft X-ray transient monitor
- Allen Telescope Array (ATA): array of radio telescopes in northern California for SETI
- Anglo-Australian Telescope (AAT): 3.9 m reflector telescope in Australia
- ARCADE: balloon-borne centimeter-wavelength surveyor
- Archeops: balloon-borne 1.8 m submillimeter telescope
- Arcminute Microkelvin Imager (AMI): pair of microwave arrays
- Arecibo Observatory (NAIC): former large 305 m radio telescope in Puerto Rico
- ARGO-YBJ Experiment: cosmic-ray/gamma-ray detector in Tibet
- Ariel 5: 1970s X-ray space telescope
- ASCA: 1990s Japanese space X-ray telescope
- ASTRO-H: Japanese space X-ray telescope
- Atacama B-Mode Search (ABS): 2012-2014 survey of the CMB
- Atacama Cosmology Telescope (ACT): 6 meter microwave survey telescope in Chile
- Atacama Large Millimeter Array (ALMA): large radio telescope array in Chile
- Atacama Pathfinder Experiment (APEX): 12-meter submillimeter telescope in Chile
- Atacama Submillimeter Telescope Experiment (ASTE): ten meter submillimeter telescope in Chile
- AtLAST: concept for submillimeter survey telescope in Chile
- Australia Telescope Compact Array (ATCA): radio telescope in eastern Australia
- Australian Square Kilometre Array Pathfinder (ASKAP): radio telescope array of 36 12-meter dishes
- Automated Planet Finder (APF): robotic telescope to find exoplanets using RV method
- BeppoSAX: Italian-Dutch space X-ray telescope
- BICEP2: survey to measure the polarization of the CMB
- BIMA telescope: millimeter interferometer in operation 1985 to 2005
- BlackGEM: telescope array in development to follow up gravitational wave signals
- BLAST: balloon-borne 1.8 m submillimeter telescope
- BOOMERanG: 1990s-2000s balloon-borne 1.3-meter millimeter telescope
- California Extremely Large Telescope (CELT): concept for an extremely large telescope
- Caltech Submillimeter Observatory (CSO,LCT): 10.4 meter submillimeter telescope in Hawaii
- Canada-France-Hawaii Telescope (CFHT): 3.6 meter optical/infrared telescope in Hawaii
- Canadian Hydrogen Intensity Mapping Experiment (CHIME,CH): radio telescope mapping distant neutral hydrogen
- Carbon Monoxide Mapping Array (COMA): planned experiment to observe epoch of reionization
- CCAT: 25-meter submillimeter telescope plan for Chile
- Chandra X-ray Observatory (CXO): space X-ray telescope
- CHARA: optical interferometer
- CHEOPS: space telescope in development to measure radii of exoplanets
- Cherenkov Telescope Array (CTA): ground gamma-ray telescope array in development
- CHIPSat: small satellite to investigate ISM plasma
- CMB Stage-4 (CMB-S4): planned 2020s-generation of ground CMB observations
- COAST: optical interferometer in England
- Colossus Telescope: concept for a 50-meter telescope using interferometry
- COMAP: high frequency radio telescope to map CO
- Combined Array for Research in Millimeter-wave Astronomy (CARMA): array of radio telescopes in eastern California
- Compton Gamma Ray Observatory (CGRO,GRO): 1990s space observatory for gamma ray observation
- Coronal Solar Magnetism Observatory (COSMO): proposed solar observatory
- COSI: 2000s balloon-based gamma ray telescope
- Cosmic Anisotropy Telescope (CAT): 1990s interferometer to measure CMB variations
- Cosmic Background Explorer (COBE): 1989 satellite for surveying the CMB
- Cosmic Background Imager (CBI): radio telescope in Chile observing the CMB
- CUBIXSS: solar spectrometer satellite concept
- DASI: 2000-2003 South Pole CMB telescope
- DSA-2000: array plan to detect radio transients
- EBEX: balloon-based CMB polarization survey
- Effelsberg 100-m Radio Telescope: German large single-dish radio telescope
- eROSITA: Russian/German space X-ray telescope launched in 2019
- ESO 3.6m Telescope: reflector telescope at La Silla
- Euclid: planned survey observatory-satellite to measure dark energy
- European Extremely Large Telescope (E-ELT,ELT): 39-meter telescope under construction
- European Southern Observatory Very Large Telescope (ESO VLT,VLT): four 8.2-meter optical telescopes in Chile that can act together
- Event Horizon Telescope (EHT): growing VLBI network
- EXOSAT: 1980s European space X-ray telescope
- Extreme Ultraviolet Explorer (EUVE): 1990s ultraviolet space telescope
- Far Ultraviolet Spectroscopic Explorer (FUSE): early 2000s space telescope for short-wavelength ultraviolet
- FAST: Arecibo-like 500 m telescope in deployment in China
- Fast Fourier Transform Telescope: proposed all-digital telescope with synthetic aperture
- FAUST: 1990s ultraviolet space telescope used on two shuttle missions
- Fermi (FGST,GLAST): satellite for studying gamma rays
- Fred Young Submillimeter Telescope (FYST,CCAT-p): 6-meter submillimeter survey telescope under construction in Chile
- Full-sky Astrometric Mapping Explorer (FAME): early 2000s proposal for an astrometric space telescope
- Gaia: 2010s astrometry survey satellite
- Galaxy Evolution Explorer (GALEX): observatory-satellite with 50-cm ultraviolet telescope
- Galileo Observatory: infrared observatory-plane in the early 1970s
- Giant Magellan Telescope (GMT): 24.5 meter telescope under construction
- Giant Metrewave Radio Telescope (GMRT): large radio interferometer in India
- Giant Segmented Mirror Telescope (GSMT): concept for an extremely large telescope
- Ginga: 1980s Japanese space X-ray telescope
- Gran Telescopio Canarias (GTC): 10.4 meter telescope in the Canary Islands
- GRANAT: observatory-satellite for detecting gamma rays and X-rays
- Green Bank 140 Foot Telescope: West Virginia radio telescope
- Green Bank 300ft Telescope (GB300): former large radio telescope at Green Bank
- Green Bank Telescope (GBT,GB): West Virginia large radio telescope
- Greenland Telescope (GLT): 12 m radio telescope in Greenland
- HabEx: proposed space mission to directly image exoplanets
- HALCA: Japanese space radio telescope operating 1997-2005
- Hale Telescope: 5.1 m reflector telescope in California
- HEAO-1: 1977 X-ray observatory space mission
- HEAO-2: 1978 X-ray observatory space mission
- HERA: low frequency radio telescope
- Herschel Space Observatory: infrared observatory-satellite with 3.5 meter reflector
- High Definition Space Telescope (HDST): proposed 12 m space telescope
- High Energy Stereoscopic System (HESS): ground gamma-ray telescope array
- High Energy Transient Explorer (HETE): 2000s space multi-band GRB observatory
- High-altitude Water Cherenkov Observatory (HAWC): gamma ray telescope using Cherenkov radiation
- Hipparcos: ESA astrometry space observatory circa 1990
- HIRAX: radio telescope array 21-cm surveying
- Hobby-Eberly Telescope (HET,SST): 10 meter telescope in Texas
- Hopkins Ultraviolet Telescope (HUT): 1990s ultraviolet space telescope used on two shuttle missions
- Hubble Space Telescope (HST): observatory-satellite with 2.4 meter reflective telescope
- Infrared Space Observatory (ISO): 1990s 60-cm infrared space telescope
- Infrared Survey Facility (IRSF): 140 cm reflector telescope that images in infrared
- Infrared Telescope Maffei (ITM,IRAIT): 80 cm infrared telescope in Antarctica
- INTEGRAL: European gamma ray observatory-satellite
- International Ultraviolet Explorer (IUE): 1980s ultraviolet space telescope
- IOTA: past optical interferometer in Arizona
- IRAM 30m Telescope: millimeter-range radio telescope in Sierra Nevada, Spain
- IRAS: 1983 satellite that surveyed the sky in infrared
- IRTF: Mauna Kea 3-meter infrared telescope
- Isaac Newton Telescope (INT): 2.5 m telescope in Canary Islands
- James Clerk Maxwell Telescope (JCMT): far-infrared telescope in Hawaii
- James Webb Space Telescope (JWST): future space-based 6.5 meter infrared telescope
- K2: second Kepler mission that worked around failed equipment
- Keck Observatory: observatory in Hawaii with two 10-meter reflectors
- Kepler Telescope: space telescope that watched stars for exoplanets
- Kuiper Airborne Observatory (KAO): infrared observatory-plane in the 1980s
- LAMOST: Chinese telescope for spectroscopic surveys of stars and galaxies
- Large Altazimuth Telescope (BTA-6): 6-meter reflector telescope in Russia
- Large Binocular Telescope (LBT): dual 8.4 meter telescope in Arizona
- Large Millimeter Telescope (LMT): large microwave telescope in Mexico
- Large Zenith Telescope (LZT): 6 meter liquid mirror telescope in British Columbia
- Livermore Optical Transient Imaging System (LOTIS): automated telescope aiming to catch GRB optical counterparts
- LOPES: cosmic ray detector that detected resulting radio
- Low-frequency Array (LOFAR): low frequency radio telescope
- Lowell Discovery Telescope (LDT,DCT): 4.3 m telescope at Lowell Observatory, Arizona
- LSPE-STRIP: CMB survey telescope in Canary Islands
- LSPE-SWIPE: plan for a balloon-based CMB polarization survey
- LUVOIR: plan for a space-based telescope
- Lynx: concept for space X-ray observatory
- Magellan Telescopes: pair of 6.5 m optical telescopes in Chile
- Mark II (MKII): 38 m radio telescope in England
- MAXIMA: 1998-1999 balloon-borne 1.3-meter millimeter telescope
- Mayall 4m Telescope: 4 meter reflector telescope at Kitt Peak
- MeerKAT: new radio telescope in South Africa
- MeerLICHT: South African telescope coordinated with MeerKAT
- Mercator Telescope: 1.2 m telescope in the Canary Islands
- MERLIN: VLBI array spread across England
- Midcourse Space Experiment (MSX): 1990s space telescope
- Milagro: gamma ray telescope using Cherenkov radiation
- MMT: 6.5 meter telescope at Mt. Hopkins, Arizona
- Mopra Telescope: Australian 22 m radio telescope
- MRO Interferometer (MROI): optical interferometer in New Mexico
- Murchison Widefield Array (MWA): low frequency radio telescope
- Nançay Radio Telescope (NRT): France large single-dish radio telescope
- NANTEN2: millimeter telescope in Chile
- Narrabri Stellar Intensity Interferometer (NSII): 1960s optical interferometer for measuring stellar diameters
- Navy Precision Optical Interferometer (NPOI): optical interferometer in Arizona
- NEOSM: planned space observatory to detect and monitor NEOs
- NEOSSat: small spacecraft tracking NEOs
- New Technology Telescope (NTT): 3.58-meter reflector telescope in Chile
- Next Generation Very Large Array (ngVLA): planned radio telescope array as a follow-on to ALMA and the Jansky VLA
- NICER: space X-ray mission specifically to view neutron stars
- Northern Extended Millimeter Array (NOEMA): large radio telescope array under construction in Europe
- NuSTAR: space telescope for high-energy X-rays
- Ooty Radio Telescope (ORT): cylindrical radio telescope in India
- Origins Space Telescope (OST): concept for 2030s large space IR telescope
- OSO 7: 1970s observatory-satellite for viewing the Sun
- Overwhelmingly Large Telescope (OWL): 100 m telescope plan
- Palomar 48 Inch Telescope (P48): 48 inch Schmidt telescope at Palomar Observatory
- Palomar 60-inch Telescope (P60): 60 inch telescope at Palomar Observatory
- Palomar Testbed Interferometer (PTI): near-infrared interferometer experiment
- Parkes Observatory: Australian large single-dish radio telescope
- Planck: microwave telescope in space
- Plateau de Bure Interferometer (PdBI): 6-dish interferometer in French Alps
- PLATO: planned observatory-satellite aimed at finding exoplanets
- QMAP: mid 1990s balloon-based CMB survey
- QUaD: survey to measure the polarization of the CMB
- QUBIC: survey to measure the polarization of the CMB
- QUIET: survey to measure the polarization of the CMB
- RATAN-600: ring-shaped radio telescope in Russia
- Roman Space Telescope (RST,WFIRST): proposed near-infrared space observatory
- ROSAT: 1990s German space X-ray telescope
- Rubin Observatory (VRO,LSST): 8-meter survey reflector telescope under construction in Chile
- RXTE: space mission to time X-ray variations
- Sardinia Radio Telescope (SRT): Italian large single-dish radio telescope
- Shane Telescope: 3.05 m reflector telescope at Lick Observatory
- SkyMapper: automated 1.35 m optical telescope in Australia
- Sloan 2.5m Telescope: telescope for SDSS in New Mexico
- SOAR: 4.1 m reflector telescope in Chile
- SOFIA: aircraft-based infrared observatory
- Solar and Heliospheric Observatory (SOHO): satellite observing the Sun
- Solar Dynamics Observatory (SDO): 2010 satellite observing the Sun
- Solar Maximum Mission (SMM): 1980s satellite to study the Sun during solar maximum
- South Pole Telescope (SPT): a microwave to radio telescope at South Pole
- Southern African Large Telescope (SALT): 10 meter telescope in South Africa
- Spektr-R: 10 m space radio telescope
- SPICA: plan for a future space IR telescope
- SPIDER: 2015 balloon-borne observatory to observe CMB polarization
- Spitzer Space Telescope (SST): past a satellite with infrared telescope
- Square Kilometre Array (SKA): radio telescope collecting a square kilometer
- STAR-X: concept for a future X-ray space telescope
- STARE: array of radio telescopes monitoring radio transients
- STARFIRE: planned balloon-borne 2.5 m telescope and spectroscope
- Subaru Telescope: 8.2 meter telescope in Hawaii
- Submillimeter Array (SMA): radio interferometer in Hawaii
- Submillimeter Telescope (SMT,HHSMT): 10 meter far-infrared telescope
- Sunyaev-Zel'dovich Array (SZA): array of eight 3.5 meter microwave telescopes
- SUSI: optical interferometer in Australia
- Suzaku: space X-ray telescope
- Swedish-ESO Submillimetre Telescope (SEST): former 15 m radio telescope array in Chile
- Swift: satellite for studying gamma-ray bursts
- Telescopio Nazionale Galileo (TNG): 3.58 m telescope in Canary Islands
- Tenerife Experiment: 1980s-1990s survey of CMB anisotropies
- Terrestrial Planet Finder (TPF): plan for space telescopes to find smaller exoplanets
- Thirty Meter Telescope (TMT): extremely large telescope planned for Hawaii
- Tokyo Photoelectric Meridian Circle: Japanese telescope to determine the position of stars and planets
- TopHat: 2001 balloon -based CMB survey
- TRACE: former solar observing satellite
- Transiting Exoplanet Survey Satellite (TESS): observatory-satellite searching for transiting exoplanets
- TRAPPIST: ground-based automatic transiting planet finding telescope
- Uhuru: 1970 satellite X-ray telescope
- UK Schmidt Telescope (UKST): 1.2 meter telescope in Australia with wide field-of-view
- ULTRASAT: plan for a satellite to detect UV transients
- Ultraviolet Imaging Telescope (UIT): 1990s ultraviolet space telescope used on two Space Shuttle missions
- United Kingdom Infrared Telescope (UKIRT): Mauna Kea 3.8 meter infrared telescope
- University of Tokyo Atacama Observatory (TAO): observatory for a 6.5 m infrared telescope under construction
- USNO Twin Astrograph: USNO astrograph deployed in 1970
- UTMOST: telescope aiming to detect radio transients
- Víctor M. Blanco Telescope: 4 m reflector telescope in Chile
- VERA: VLBI project to map the Milky Way
- VERITAS: ground gamma ray telescope array in Arizona
- Very Large Array (VLA): radio telescope in New Mexico
- Very Small Array (VSA): radio interferometer in Canary Islands
- VISTA: 4.1 meter telescope in Paranal Observatory in Chile
- VLT Survey Telescope (VST): survey telescope located at the VLT site
- Westerbork Synthesis Radio Telescope (WSRT): radio telescope array of 14 dishes in Netherlands
- Wide Field Infrared Explorer (WIRE): partly-failed 1999 infrared satellite
- Wide-field Infrared Survey Explorer (WISE): infrared space telescope aimed at an all-sky survey
- William Herschel Telescope (WHT): 4.2 meter telescope in the Canary Islands
- Wisconsin Ultraviolet Photo-polarimeter Experiment (WUPPE): 1990s ultraviolet space telescope used on two shuttle missions
- WIYN 3.5m Telescope: Kitt Peak telescope run by university collaboration with NOAO
- XMM-Newton: X-ray observatory-satellite operated by ESA
- Yohkoh: 1990s Japanese solar observatory spacecraft
- Yuan-Tseh Lee Array (YTLA,AMiBA): microwave interferometer in Canary Islands
- Telescope Array Experiment:
- Telescope Array Low Energy extension:
- Telescope Array Project (TA): cosmic-ray observatory aiming for extremely energetic particles
- Telescope Array RADAR:
- Telescope Nazionale Galileo:
- HARPS-N: high-precision spectrograph for exoplanet searches in Canary Islands
- telescope type: term indicating band or optics of a telescope
- telescopes:
- telescopic asterism:
- asterism: easily recognizable star pattern
- Telescopio Carlos Sanchez:
- Telescopio Nazionale Galileo (TNG): 3.58 m telescope in Canary Islands
- telluric:
- telluric contamination:
- telluric contamination.:
- telluric correction:
- telluric line: absorption line in ground observation due to Earth atmosphere
- telluric line: absorption line in ground observation due to Earth atmosphere
- telluric line subtraction:
- telluric line: absorption line in ground observation due to Earth atmosphere
- telluric planet:
- telluric standard star:
- telluric star: star of known spectrum used for calibration
- telluric line: absorption line in ground observation due to Earth atmosphere
- Tempel 1:
- EPOXI: mission using Deep Impact for further exploration
- Stardust: space mission that collected and returned comet coma dust
- temperature: measure of hotness/coldness of matter
- temperature gradient:
- temperature inversion:
- temperature profile:
- temperature scale height:
- templates: mechanism to help classify many survey objects or events
- Tempo:
- Tempo2:
- temps dynamique barycentrique:
- time standard: method of designating points in time and quantifying time periods
- temps-coordonnée barycentrique:
- time standard: method of designating points in time and quantifying time periods
- Tenegra observatory:
- Tenerife:
- Tenerife Experiment: 1980s-1990s survey of CMB anisotropies
- TENGOO:
- MMX: Japanese probe to bring back a sample of a Martian moon
- tensor:
- Teq:
- terahertz:
- terminal-age main sequence:
- termination shock:
- terminator: line between regions of day and night
- terminology:
- dex: a number or ratio's log base 10
- diagnostic: test or measurement that reveals something's characteristics
- in situ: on site
- terrestrial dynamical time:
- time standard: method of designating points in time and quantifying time periods
- terrestrial planet:
- Terrestrial Planet Finder (TPF): plan for space telescopes to find smaller exoplanets
- terrestrial time (TT): current measure of time for astronomical observations on Earth
- time standard: method of designating points in time and quantifying time periods
- tertiary mirror:
- Terzan:
- TES:
- TES bolometer:
- TES Camera:
- TESCAM:
- tesla (T): unit of magnetic flux density
- TESS:
- TESS Duo:
- TESS Follow-up Observing Program:
- TESS object of interest:
- TESS-bis:
- Tethys:
- moon: a planet's natural satellite, such as Earth's
- Saturn: second largest planet in the solar system
- tetrahedron:
- Teutsch:
- Texas:
- Texas Interferometer:
- Texas Supernova Search:
- Texas Survey of Radio Sources at 365 MHz (TXS): 1970s/1970s radio survey made with the Texas Interferometer
- texture:
- TFOP:
- TFR:
- TGE:
- TGI:
- QUIJOTE: survey to measure the polarization of the CMB
- TGO:
- THA:
- THA star:
- The Arecibo Legacy Fast ALFA Survey:
- ALFALFA: HI survey of many galaxies
- The Colossus Telescope:
- The H2O Southern Galactic Plane Survey (HOPS): survey of molecular clouds in the galactic plane
- The LaSilla-QUEST Variability Survey:
- QUEST: sixteen square-degree survey camera
- The Survey for Ionization in Neutral Gas Galaxies (SINGG): survey of H-alpha in galaxies found through the HI line
- Theia:
- THEMIS: set of satellites studying the Earth's magnetic field
- theoretical modified GR metrics: metrics devised to define modifications to GR
- theory:
- theory of equilibrium figures:
- Theory of Everything (TOE): single law explaining the four forces of nature
- symmetry breaking: loss of symmetry, such as due to loss of stability in a regime change
- theory of figures (TOF): type of model relating a planet's shape to its rotation
- theory of figures of planets rotating in hydrostatic equilibrium:
- thermal bremsstrahlung: type of EMR produced by thin, hot plasma
- thermal broadening:
- thermal diffusivity:
- Rayleigh number (Ra): measure reflecting a fluid system's propensity to turbulence
- thermal Doppler broadening:
- thermal dust emission: glow of dust heated by stars or AGNs
- thermal emission: EMR due to a body's heat
- thermal energy:
- thermal escape:
- thermal inertia: a measure of a material's ability to absorb heat through conduction
- thermal IR:
- infrared (IR): electromagnetic radiation, wavelength 0.74-300 micrometers
- thermal KID:
- KID: type of sensitive electronic device to detect light
- thermal noise: noise inherent in electronic component warmer than absolute zero
- photon noise: variation in light measurement due to its quantum nature
- thermal pulse: pulse in an AGB star due to helium fusion in a shell
- thermal pulse AGB:
- thermal pulse cycle:
- thermal pulse: pulse in an AGB star due to helium fusion in a shell
- thermal radiation:
- thermal runaway: situation where heat triggers more heat production
- thermal Sunyaev-Zel'dovich effect:
- thermal tide:
- thermal timescale:
- Kelvin-Helmholtz timescale (KH timescale,KH time,τKH): time that would radiate away a body's heat energy given its luminosity
- timescale (t,τ): general length of time something takes
- thermal Urca process:
- thermal wind: wind from pressure and the Coriolis force varying with altitude
- thermal wind balance:
- thermal wind: wind from pressure and the Coriolis force varying with altitude
- thermodynamic equilibrium (TE): state of a system with no net heat flows
- thermodynamics: physics of heat and energy
- thermoelectric effect:
- MMRTG: power source for space probes
- thermonuclear supernova:
- thermosphere:
- Thermosphere Ionosphere Mesosphere Energetics and Dynamics:
- TIMED: space probe observing Earth upper atmosphere for solar effects
- Theta Orionis:
- thick disk:
- thick disk stars:
- thick shell:
- Europa: well-known Jupiter moon
- thin disk:
- thin disk accretion:
- thin disk stars:
- thin shell:
- Europa: well-known Jupiter moon
- Third Cambridge Catalogue of Radio Sources (3C): 1959 catalog of northern hemisphere 159MHz sources
- Third Catalogue of Nearby Stars:
- third dredge-up:
- dredge-up: stellar convection bringing up fused material
- Third Reference Catalogue of Bright Galaxies:
- third-order coma:
- third-order TOF:
- Thirty Meter Telescope (TMT): extremely large telescope planned for Hawaii
- Thomson optical depth (τT,τ): a measure of effects of Thomson scattering
- Thomson scattering: elastic scattering of photons by a charged particle
- Thomson scattering optical depth:
- Thomson thick:
- Thor-Delta 1A:
- TD-1A: 1970s European observatory-satellite with UV telescopes
- thorium:
- Thorne-Żytkow object (TZO,TŻO): giant star with a neutron star at its center
- three dimensional model: computer simulation handling variation in all three dimensions
- three-body capture:
- tidal capture: bodies entering orbit through dissipation of energy by tides
- three-body problem:
- N-body problem: calculating the paths of gravitationally-interacting celestial objects
- three-mirror anastigmat: general type of reflector telescope
- Tianwen-1 (TW-1): Mars rover/orbiter mission currently orbiting Mars
- Tibet:
- TIC:
- tidal:
- galactic tide: effect of one galaxy's gravity, such as on another galaxy
- Love number: measures of rigidity of a body
- Roche limit: nearest a body can orbit another and survive
- tidal arm: arm of gas and potentially stars leading from a galaxy
- tidal disruption event (TDE,TDF): star pulled apart by black hole tidal forces
- tidal force: effect of a third body on the gravitational force between two bodies
- tidal heating: heating due to friction from motions caused by tidal force
- tidal locking: locked rotation of an orbiting body
- tidal migration: interaction between tide and orbiting body that changes the orbit
- tidal Q: measure of orbital energy dissipated per orbit due to tidal forces
- tidal tail: string of mass ejected by a tidal forces in a neutron star merger
- tidal acceleration:
- tidal force: effect of a third body on the gravitational force between two bodies
- tidal migration: interaction between tide and orbiting body that changes the orbit
- tidal arm: arm of gas and potentially stars leading from a galaxy
- tidal braking:
- tidal force: effect of a third body on the gravitational force between two bodies
- tidal capture: bodies entering orbit through dissipation of energy by tides
- tidal deceleration:
- tidal force: effect of a third body on the gravitational force between two bodies
- tidal deformability:
- tidal deformability parameter:
- tidal disruption event (TDE,TDF): star pulled apart by black hole tidal forces
- tidal disruption flare:
- tidal equilibrium:
- tidal force: effect of a third body on the gravitational force between two bodies
- tidal flexing:
- tidal heating: heating due to friction from motions caused by tidal force
- tidal force: effect of a third body on the gravitational force between two bodies
- tidal heating: heating due to friction from motions caused by tidal force
- tidal locking: locked rotation of an orbiting body
- tidal migration: interaction between tide and orbiting body that changes the orbit
- tidal parameter:
- tidal period:
- tidal Q: measure of orbital energy dissipated per orbit due to tidal forces
- tidal potential:
- tide: effect of Moon's gravity on Earth's seas, etc.
- tidal Q: measure of orbital energy dissipated per orbit due to tidal forces
- tidal Q factor:
- Q factor: measure of oscillator's damping
- tidal Q: measure of orbital energy dissipated per orbit due to tidal forces
- tidal quality factor:
- Q factor: measure of oscillator's damping
- tidal Q: measure of orbital energy dissipated per orbit due to tidal forces
- tidal radius:
- Hill radius: radius of gravitational influence of a body
- tidal stream:
- tidal stripping:
- tidal arm: arm of gas and potentially stars leading from a galaxy
- tidal tail: string of mass ejected by a tidal forces in a neutron star merger
- tidal arm: arm of gas and potentially stars leading from a galaxy
- tidal theory:
- tidal working:
- tidal heating: heating due to friction from motions caused by tidal force
- tidal-capture binary:
- binary star: system of two stars co-orbiting
- tidal capture: bodies entering orbit through dissipation of energy by tides
- tidal-tail galaxy:
- tidal arm: arm of gas and potentially stars leading from a galaxy
- tidally excited oscillation:
- tidal migration: interaction between tide and orbiting body that changes the orbit
- tide: effect of Moon's gravity on Earth's seas, etc.
- TIDI:
- TIMED: space probe observing Earth upper atmosphere for solar effects
- tiger stripes:
- Enceladus: Saturn moon considered possible carrier of life
- Tillinghast:
- Tillinghast Telescope:
- Tillotson EoS:
- Tillotson equation: equation of state for high speed impacts
- Tillotson equation of state:
- tilt:
- obliquity: angle between an object's rotational and orbital axes
- tilt erosion:
- obliquity: angle between an object's rotational and orbital axes
- TIME:
- cosmic time: time since the Big Bang
- epoch: when an object was at a particular set of celestial coordinates
- epoch B1950.0: midnight 1/1/1950 GMT as used as a time reference
- epoch J2000.0: noon 1/1/2000 GMT as used as a time reference
- equinox: times when tilt of Earth is neither toward or away from the Sun
- gigayear (Gy,Gyr): a billion years
- Hubble time (tH): approximation of the age of the universe
- Julian calendar: calendar of 365 days and a leap day once every four years
- Julian date (JD): time in days since noon UT November 24 4714 BC Gregorian
- sidereal: relative to the fixed position of the stars
- solar day: length of a solar system planet or Moon's day
- solar time: time based upon the position of the Sun in the Earth's sky
- terrestrial time (TT): current measure of time for astronomical observations on Earth
- time standard: method of designating points in time and quantifying time periods
- timescale (t,τ): general length of time something takes
- Tomographic Ionized-carbon Mapping Experiment (TIME): proposed instrument to map the [CII] line
- time dilation: relativity's ability to make time differ for different objects
- Time History of Events and Macroscale Interactions during Substorms:
- THEMIS: set of satellites studying the Earth's magnetic field
- time scale:
- time standard: method of designating points in time and quantifying time periods
- timescale (t,τ): general length of time something takes
- time series:
- time series analysis: analysis of data points collected at uniformly-separated times
- time series data:
- time standard: method of designating points in time and quantifying time periods
- time system:
- time standard: method of designating points in time and quantifying time periods
- time-like:
- geodesic: equivalent to a straight line in curved space
- spacetime diagram: graph of simplified spacetime, with fewer space dimensions
- time-of-flight spectrometer:
- time-ordered data (TOD): observation data arranged by the time it was received
- TIME-pilot:
- TIMED: space probe observing Earth upper atmosphere for solar effects
- timescale (t,τ): general length of time something takes
- timing:
- timing noise:
- TIMMI-2:
- TiNy Titans (TNT): study of dwarf galaxy pairs
- tip of the red-giant branch (TRGB): using a galaxy's maximum RGB brightness as a standard candle
- tired light: theory that light becomes red for reasons other than Doppler shift
- Titan: well-known Saturn moon
- Cassini: explorer spacecraft sent to Saturn
- Dragonfly: plan for Titan flying rover
- moon: a planet's natural satellite, such as Earth's
- Saturn: second largest planet in the solar system
- Titan Atmospheric Model:
- TAM: non-gray-RT 3D model of Titan's atmosphere
- Titania:
- moon: a planet's natural satellite, such as Earth's
- Uranus: second outer-most solar system planet
- Titius-Bode law: relationship between the distances between solar system planets
- Titius-Bode rule:
- Titius-Bode law: relationship between the distances between solar system planets
- titrant:
- titration: analyzing a chemical solution by color change
- titration: analyzing a chemical solution by color change
- titrimetry:
- titration: analyzing a chemical solution by color change
- tKID:
- KID: type of sensitive electronic device to detect light
- TLF:
- TMC:
- TMC-1:
- TMC-2:
- TMSS:
- TMT:
- TN:
- TNG:
- TNO:
- Haumea: dwarf planet discovered in 2004
- Pluto: dwarf planet formerly listed as one of the nine planets
- Sedna: distant solar system planetoid discovered in 2003
- trans-Neptunian object (TNO): minor planet beyond Neptune
- TNS:
- TNT:
- TO:
- turn-off point (TO): point in H-R diagram of a cluster where stars turn red
- TOD:
- TOE:
- TOF:
- TOI:
- TOI 700:
- TOI 700 d: Earth-sized exoplanet in a habitable zone
- TOI 700 d: Earth-sized exoplanet in a habitable zone
- Tokyo Atacama Observatory:
- Tokyo Photoelectric Meridian Circle: Japanese telescope to determine the position of stars and planets
- Tokyo Photoelectric Meridian Circle Catalog:
- Tolman-Oppenheimer-Volkoff equation:
- Tolman-Oppenheimer-Volkoff limit (TOV,LOV): maximum mass of a neutron star
- TolTEC: sensitive infrared camera under construction for the LMT
- TolTEC C2C:
- TolTEC: sensitive infrared camera under construction for the LMT
- TolTEC FiF:
- TolTEC: sensitive infrared camera under construction for the LMT
- TolTEC LSS:
- TolTEC: sensitive infrared camera under construction for the LMT
- TolTEC UD:
- TolTEC: sensitive infrared camera under construction for the LMT
- Tombaugh:
- Tomographic Ionized-carbon Mapping Experiment (TIME): proposed instrument to map the [CII] line
- tomographic magnetic imaging:
- tomography: observation of sections of a 3D object
- Ton:
- Tonantzintla Observatory:
- Tonantzintla Surveys (Ton): surveys providing early images of quasars and Seyfert galaxies
- too-big-to-fail problem:
- Toomre Q parameter (Q): stability criterion for differentially rotating disks
- Toomre sequence: model relating galaxy mergers to observation
- Toomre's stability criteria:
- top down model:
- top quark:
- particle: very small thing
- quark: type of elementary particle incorporated in protons and neutrons
- standard model: model of elementary particles including quarks
- TopHat: 2001 balloon -based CMB survey
- topological defect: defect in space that could arise in the early universe
- toroidal:
- torr: unit of pressure approximating a millimeter of mercury on Earth
- tortuosity: describes something curved with many twists and turns
- torus:
- torus coordinates: coordinates for toruses
- total derivative:
- total differential equation:
- total duration:
- total energy:
- total mass:
- total relativistic energy:
- TOURNESOL:
- GRANAT: observatory-satellite for detecting gamma rays and X-rays
- TOV:
- TOV equation:
- TP-AGB:
- TPC:
- thermal pulse: pulse in an AGB star due to helium fusion in a shell
- TPF:
- TR:
- OGLE: survey searching for microlensing transients
- TRACE: former solar observing satellite
- Trace Gas Orbiter (TGO): ESA and Russian Mars orbiter-probe launched in 2016
- tracer: chemical whose presence indicates the presence of another chemical
- trade winds:
- training:
- Trans-Atlantic Exoplanet Survey (TrES): 2000s exoplanet-search survey using three telescopes
- trans-iron element: elements with atomic number greater than that of iron
- trans-Neptune binary:
- trans-Neptune object:
- trans-Neptunian object (TNO): minor planet beyond Neptune
- transfer equation:
- transformation group:
- transient: observed change in the sky
- FRB121102: first repeating FRB discovered
- GW170817: 2017 gravitational wave detection from a neutron star merger
- Kepler's Supernova: Type IA supernova observed in 1604 by Johannes Kepler
- Oh-My-God Particle: extremely energetic particle from space detected in 1991
- SN 1572: Type IA supernova noted in 1572 by Tycho Brahe
- SN 185: supernova recorded in China in AD 185
- SN 1987A (1987A): supernova in February 1987 rare for being visible by the naked eye
- SN 2014J: type Ia supernova in Messier 82, the Cigar Galaxy
- transient astronomical event:
- transient astronomy: study of short-term astronomical phenomena
- Transient Name Server (TNS): online catalog of transients
- transient type:
- transients:
- transit: a celestial body passing between another and an observer
- meridian circle: instrument for timing the passage of stars over a meridian
- occultation: one celestial body hiding another from an observer
- transit telescope: telescope able to shift aim up/down but not horizontally
- transit circle:
- meridian circle: instrument for timing the passage of stars over a meridian
- transit depth:
- transit duration:
- transit duration variations:
- transit mapping:
- transit method: method of detecting exoplanets and binary companions
- extra-solar planet: planet not in the solar system
- GJ 1132 b: Earth-like extrasolar planet discovered in 2015
- GJ 1214 b: super-Earth extrasolar planet discovered in 2009
- HD 189733 b: hot Jupiter orbiting an orange dwarf
- Kepler-1625b: giant exoplanet in a star's habitable zone
- Kepler-16b: exoplanet orbiting a binary star
- Kepler-186f: Earth-like exoplanet in a star's habitable zone
- Kepler-452b: Earth-like exoplanet discovered in 2015
- LHS 3844 b: red dwarf with rocky planet in its habitable zone
- TOI 700 d: Earth-sized exoplanet in a habitable zone
- transit: a celestial body passing between another and an observer
- transiting planet: planet crossing between another body and the observer
- WASP-33b: hot Jupiter discovered in 2010
- WASP-67b: hot Jupiter discovered in 2011
- transit radio telescope:
- transit spectrography:
- transit spectrometer:
- transit spectroscopy: spectroscopy through an exoplanet's transit
- transit telescope: telescope able to shift aim up/down but not horizontally
- meridian circle: instrument for timing the passage of stars over a meridian
- transit timing variations (TTV): variations in the timing of the transits of exoplanets and binaries
- transiting exoplanet:
- Transiting Exoplanet Survey Satellite (TESS): observatory-satellite searching for transiting exoplanets
- transiting planet: planet crossing between another body and the observer
- Transiting Planets and Planetesimals Small Telescope:
- TRAPPIST: ground-based automatic transiting planet finding telescope
- transition disk:
- transition edge sensor (TES): sensor using superconductivity's strong temperature sensitivity
- transition edge sensor bolometer:
- transition region: middle layer of the Sun's atmosphere
- Transition Region and Coronal Explorer:
- TRACE: former solar observing satellite
- transitional disk: disk with inner part cleared
- transitional planet:
- mini-Neptune: planet with characteristics a bit like Earth but more like Neptune
- super-Earth: exoplanet more massive than Earth but substantially less than Neptune
- transits:
- transmission spectrography:
- transmission spectroscopy: spectrum of radiation passing through a substance
- transport-limited:
- weathering: changes in surface due to contact with atmosphere
- transverse velocity:
- Trapezium Cluster: open cluster of stars in Orion Nebula
- TRAPPIST: ground-based automatic transiting planet finding telescope
- TRAPPIST telescope:
- TRAPPIST-1: red dwarf with exoplanet near the habitable zone
- TRAPPIST-North:
- TRAPPIST: ground-based automatic transiting planet finding telescope
- TRAPPIST-South:
- TRAPPIST: ground-based automatic transiting planet finding telescope
- Traverse Gravimeter Experiment:
- TRC:
- Hipparcos: ESA astrometry space observatory circa 1990
- Treasury Program:
- treasury survey:
- tree:
- dendrogram: diagram of a "tree", i.e., of a graph without cycles
- tremendously low frequency (TLF): electromagnetic radiation, frequency below 3 Hz
- TrES:
- TRGB:
- Tri II:
- Triana:
- Triangulum:
- Triangulum Galaxy (M33): small spiral galaxy in the Local Group
- Triangulum II (Tri II): dwarf galaxy in the Local Group
- Triangulum subgroup:
- galaxy subgroup: group of fifty or fewer gravitationally bound Milky-Way-sized galaxies
- triaxial galaxy:
- galaxy: gravitationally-bound group of stars
- trigonometric parallax:
- parallax: angle due to different lines of sight
- triple alpha process: fusion reaction chain turning helium-4 into carbon
- triple bond:
- hydrocarbon (HC): any compound of just carbon and hydrogen
- triple point:
- Mars: well-explored planet in the solar system
- supercritical fluid (SCF): state of matter at sufficient pressure and temperature
- triple prism spectrograph:
- spectroscopy: measurement of light with various electromagnetic wavelengths
- triple star:
- star system: a gravitationally bound set of a few stars
- triple system:
- TripleSpec (TSpec): near-infrared spectrograph on the Hale Telescope
- Triplespec 4.1:
- Triton: Neptune's one significant moon
- irregular moon: moon with an atypical orbit, such as retrograde
- moon: a planet's natural satellite, such as Earth's
- Moon formation: process by which the Moon and other moons formed
- Neptune: outer-most solar system planet
- Trojan:
- Trojan asteroid:
- Trojan planet:
- Trojan point:
- Tropic of Cancer:
- circle of latitude: circle around the Earth of points equidistant from a pole or the equator
- Tropic of Capricorn:
- circle of latitude: circle around the Earth of points equidistant from a pole or the equator
- tropical year:
- Julian calendar: calendar of 365 days and a leap day once every four years
- sidereal: relative to the fixed position of the stars
- tropopause:
- troposphere:
- true anomaly:
- true vacuum:
- Trumpler:
- TS:
- Tsol:
- Titan: well-known Saturn moon
- TSpec:
- TripleSpec (TSpec): near-infrared spectrograph on the Hale Telescope
- tsunami:
- tSZ:
- tSZE:
- TT:
- CMB polarization: effects of scattering and lensing on the CMB
- terrestrial time (TT): current measure of time for astronomical observations on Earth
- time standard: method of designating points in time and quantifying time periods
- TTS:
- DQ Tau: young binary star system
- GG Tau: much-studied quadruple star system
- Herbig AeBe star (HAeBe): type of pre-main-sequence star more massive than a T-Tauri star
- HL Tau: much-studied T-Tauri star
- PDS 70: T-Tauri star with protoplanetary disk and protoplanet
- pre-main-sequence star (PMS,pre-MS): star not yet with a nuclear reaction
- RXJ1615: protostar with transition disk showing rings
- T association: stellar association with T-Tauri stars
- T-Tauri star (TTS): type of variable pre-main-sequence star
- TW Hydrae (TW Hya): nearest T-Tauri star
- TTV:
- Tubingen Ultraviolet Echelle Spectrometer (TUES): 1990s UV spectrometer used on two Space Shuttle missions
- Tuc-Hor:
- Tucana Horologium association (THA,Tuc-Hor): nearby stellar association
- TUES:
- Tully-Fisher relation (TFR): relation between spiral galaxy luminosity and line width
- tuning fork:
- Tunka Advanced Instrument for cosmic ray physics and Gamma Astronomy:
- Tunka experiment: Russian Cherenkov detector aimed at cosmic rays and gamma rays
- Tunka experiment: Russian Cherenkov detector aimed at cosmic rays and gamma rays
- tunnel diode:
- tunneling:
- turbulence: irregular flow of a fluid
- turbulence pressure:
- turbulent flow:
- turbulent pressure: pressure component due to the presence of turbulence
- turn-off:
- turn-off point (TO): point in H-R diagram of a cluster where stars turn red
- turn-off point (TO): point in H-R diagram of a cluster where stars turn red
- Turtlebeach: radiative transfer code
- TVLM:
- TW Hya:
- TW Hydrae (TW Hya): nearest T-Tauri star
- TW Hydrae association (TWA): nearby stellar association
- TW-1:
- Tianwen-1 (TW-1): Mars rover/orbiter mission currently orbiting Mars
- TWA:
- TWA star:
- twinkle:
- point source: celestial object that focuses to a point or single Airy disk
- twinkling: blinking, apparent movement and color changes of observed stars
- two dimensional model:
- Two Micron All-sky Survey (2MASS): near-infrared survey of both hemispheres
- Two Micron Sky Survey (IRC,TMSS): 1969 infrared catalog produced by Caltech
- two-body problem:
- N-body problem: calculating the paths of gravitationally-interacting celestial objects
- two-photon emission:
- two-stream approximation: approximation of a star's internal EMR's divergence from isotropic
- twotino:
- TXS:
- TYC:
- Hipparcos: ESA astrometry space observatory circa 1990
- Tycho Catalog:
- Hipparcos: ESA astrometry space observatory circa 1990
- Tycho Input Catalog:
- Hipparcos: ESA astrometry space observatory circa 1990
- Tycho Reference Catalog:
- Hipparcos: ESA astrometry space observatory circa 1990
- Tycho SNR:
- SN 1572: Type IA supernova noted in 1572 by Tycho Brahe
- Tycho's Supernova:
- Cassiopeia A: supernova remnant visible for 300 years
- SN 1572: Type IA supernova noted in 1572 by Tycho Brahe
- Tycho-1 Catalog:
- Hipparcos: ESA astrometry space observatory circa 1990
- Tycho-2 Catalog:
- Hipparcos: ESA astrometry space observatory circa 1990
- Type 1 AGN:
- Type 1 Seyfert galaxy:
- Type 2 AGN:
- Type 2 Seyfert galaxy:
- Type 3 Seyfert galaxy:
- LINER: galaxy nucleus emitting spectral lines for ionized and neutral atoms
- Seyfert galaxy (Sy): visible active galaxy
- Type A CAI:
- CAI: calcium/aluminum specs in chondrites
- Type B CAI:
- CAI: calcium/aluminum specs in chondrites
- Type C CAI:
- CAI: calcium/aluminum specs in chondrites
- Type I:
- Type I Cepheid:
- Type I galaxy cluster:
- Type I migration:
- Type I SLSN:
- Type I supernova:
- Type Ia supernova: type of supernova for which distance can be determined
- Type Ia supernova problem: lack of fully-convincing Type Ia supernovae triggering model
- Type Ia supernova progenitor:
- Type Ia supernova survey:
- Type Ib supernova:
- Type Ic supernova:
- Type II:
- Type II Cepheid:
- Type II migration:
- Type II SLSN:
- Type II supernova:
- Type II-L supernova:
- supernova (SN): stellar explosion larger than a nova
- Type II-P supernova:
- supernova (SN): stellar explosion larger than a nova
- Type IIb:
- supernova (SN): stellar explosion larger than a nova
- Type III:
- Type III galaxy cluster:
- Type III migration:
- Type IIIE galaxy cluster:
- Type IIIS galaxy cluster:
- Type IIn supernova:
- Type IV:
- Type V:
- Type VI:
- TZO:
Index