Term Index (V)
- V: photometric filter for visible light
- V band:
- V: photometric filter for visible light
- V filter:
- V: photometric filter for visible light
- Víctor M. Blanco Telescope: 4 m reflector telescope in Chile
- V-band:
- V1216 Sagittarii:
- V1216 Sgr:
- V1687 Cyg:
- WR 140: Wolf-Rayet star that produces much dust
- V509 Cassiopeiae:
- Ve:
- escape velocity (Ve): minimal velocity that allows something to overcome a body's gravity
- Vmax:
- vacuum:
- vacuum energy:
- Vainu Bappu Observatory (VBO): observatory in southern India
- Vainu Bappu Telescope:
- valence:
- electron shell: radius-level around an atomic nucleus at which electrons can orbit
- valley of beta stability: set of isotopes not prone to beta decay
- VAMPIRES:
- Van Allen belts: regions of energetic charged particles surrounding Earth
- aurora: light produced by atmosphere and solar wind
- radiation belt: regions of energetic charged particles surrounding a planet
- van Cittert-Zernike theorem:
- u-v plane: plane for displaying Fourier transforms of signal from the sky
- visibility: mathematical representation of interferometer's view
- van den Bergh galaxy classification: galaxy classification variant including luminosity
- van den Bergh luminosity classification:
- Van Den Bergh Reflection Nebula Catalog (vdB): catalog of reflection nebulae found in POSS plates
- van der Waals force:
- vapor pressure:
- Var:
- variable:
- variable star: star that varies in magnitude
- variable star designation: Bayer system variant for variable stars
- variable type:
- Variables and Slow Transients:
- Varuna:
- Kuiper Belt (K Belt,KB): further part of solar system beyond Neptune
- VAST:
- Vatican Advanced Technology Telescope:
- VB:
- VBO:
- VBSDC:
- VBT:
- VCC:
- VCF:
- Local Group (LG): group of galaxies including the Milky Way
- vdB:
- vdB-Ha:
- vector analysis:
- vortex: fluid region where the flow is spinning
- vector calculus:
- vector field:
- Vega: brightest star in constellation Lyra
- Vega system: magnitude calibration such that Vega has zero magnitude
- VEGAS:
- vegetation red edge (VRE): wavelength cut-off point in the reflectivity of typical plants
- vegetation signature:
- Vela supernova remnant: nearby supernova remnant
- Velikhov-Chandrasekhar Instability:
- Veloce:
- velocimetry:
- velocity dispersion (σ): statistical dispersion of velocities of a group of objects
- velocity field:
- vortensity: ratio of vorticity to mass density
- vortex: fluid region where the flow is spinning
- velocity-metallicity relation: higher stellar velocity correlates with lower metallicity
- Venus: second inner-most planet in the solar system
- Venus Radar Mapper:
- VERA: VLBI project to map the Milky Way
- Veray C. Rubin Observatory:
- Rubin Observatory (VRO,LSST): 8-meter survey reflector telescope under construction in Chile
- verification by multiplicity:
- VERITAS: ground gamma ray telescope array in Arizona
- vernal equinox:
- vernal point:
- equinox: times when tilt of Earth is neither toward or away from the Sun
- vertical epicyclic frequency:
- vertical optical depth:
- vertical oscillation frequency:
- vertical scale height:
- vertical temperature profile:
- Very Energetic Radiation Imaging Telescope Array System:
- VERITAS: ground gamma ray telescope array in Arizona
- very high energy:
- very high frequency.page:
- Very Large Array (VLA): radio telescope in New Mexico
- Very Large Telescope:
- Very Large Telescope Interferometer:
- very late thermal pulse:
- thermal pulse: pulse in an AGB star due to helium fusion in a shell
- Very Long Baseline Array (VLBA): radio interferometer stretching 8000 km
- very low frequency (VLF): electromagnetic radiation, frequency 3-30 kHz
- very low mass star:
- Very Small Array (VSA): radio interferometer in Canary Islands
- very-high energy cosmic rays:
- cosmic rays (CR): very-high-energy particles from beyond the solar system
- very-high-energy:
- very-high-energy gamma ray:
- very-high-energy gamma rays (VHEGR): energetic gamma rays with 100 GeV to 100 TeV photon energy
- very-long-baseline interferometry (VLBI): interferometry based upon storing timing data at each telescope
- Vesta:
- asteroid family: set of asteroids based on similar orbits
- Dawn: explorer spacecraft sent to asteroids Vesta and Ceres
- protoplanet: simplest, least-developed object classified as a planet
- VFTS:
- VHE: 100 GeV or more
- VHE cosmic rays:
- cosmic rays (CR): very-high-energy particles from beyond the solar system
- VHE gamma ray:
- VHECR:
- cosmic rays (CR): very-high-energy particles from beyond the solar system
- VHEGR:
- VHF:
- high frequency (HF): electromagnetic radiation, frequency 3-30 MHz
- Ulysses: space mission to observe the Sun from off the ecliptic
- VHS:
- VISTA: 4.1 meter telescope in Paranal Observatory in Chile
- VI:
- subdwarf (sd,VI): star less bright than the main sequence given its spectral class
- Victor M. Blanco Telescope:
- Dark Energy Survey (DES): survey aimed at mapping the universe's expansion
- DECaLS: survey imaging part of SDSS footprint with DECam
- VIDEO:
- VISTA: 4.1 meter telescope in Paranal Observatory in Chile
- VIK:
- VISTA: 4.1 meter telescope in Paranal Observatory in Chile
- VIKING:
- Mars: well-explored planet in the solar system
- VISTA: 4.1 meter telescope in Paranal Observatory in Chile
- Villanova White Dwarf Catalog: ongoing catalog of white dwarfs
- VIMOS:
- VIMOS Public Extragalactic Redshift Survey (VIPERS): spectrographic redshift survey of 80,000 galaxies
- VIMOS-VLT Deep Survey (VVDS): spectroscopic survey of 100,000 high-redshift galaxies
- VIMS:
- Cassini: explorer spacecraft sent to Saturn
- VINCI:
- violent migration:
- violet noise:
- red noise: noise tending toward lower frequencies
- Viper:
- ACBAR: instrument used in CMB search
- VIPERS:
- VIR:
- Dawn: explorer spacecraft sent to asteroids Vesta and Ceres
- VIRCAM:
- UltraVISTA: near infrared survey using VISTA telescope
- VISTA: 4.1 meter telescope in Paranal Observatory in Chile
- Virgo: ground-based gravitational-wave detector in Italy
- Virgo A:
- M87: supergiant elliptical galaxy in local universe
- Virgo Cluster: nearby large galaxy cluster
- Virgo Cluster Catalog (VCC): 1980s catalog of 2000 galaxies
- Virgo Detector:
- Virgo: ground-based gravitational-wave detector in Italy
- Virgo I:
- Virgo SC:
- Virgo Stellar Stream: stellar stream wrapping around the Milky Way
- Virgo Stream:
- Virgo Supercluster: supercluster including the Local Group
- Virgo X-1:
- M87: supergiant elliptical galaxy in local universe
- Virgocentric flow:
- Local Group (LG): group of galaxies including the Milky Way
- Virgocentric peculiar velocity:
- Local Group (LG): group of galaxies including the Milky Way
- virial length:
- virial theorem: average kinetic energy equals half the average negative potential energy
- virial mass:
- virial theorem: average kinetic energy equals half the average negative potential energy
- virial parameter: calculated quantity showing whether a cloud is gravitationally bound
- virial radius:
- virial scale:
- virial theorem: average kinetic energy equals half the average negative potential energy
- virial temperature:
- virial theorem: average kinetic energy equals half the average negative potential energy
- virial theorem: average kinetic energy equals half the average negative potential energy
- VIRMOS:
- VIRMOS-VLT Deep Survey:
- VIRTIS:
- Rosetta: space probe that visited a comet
- virtual black hole:
- black hole (BH): region of such high mass that light cannot escape
- virtual image:
- real image: image that shows on a screen placed at its location
- virtual observatory (VO): online database of astronomical data
- virtual particle:
- VIRUS:
- viscous forces:
- Reynolds number (Re): measure reflecting a fluid system's propensity to turbulence
- visibility: mathematical representation of interferometer's view
- u-v plane: plane for displaying Fourier transforms of signal from the sky
- Visible and Infrared Survey Telescope for Astronomy:
- VISTA: 4.1 meter telescope in Paranal Observatory in Chile
- visible light: electromagnetic radiation, wavelength 390-750 nm
- visible universe:
- visible window:
- VISIR:
- VISTA: 4.1 meter telescope in Paranal Observatory in Chile
- VISTA Deep Extragalactic Observations Survey:
- VISTA: 4.1 meter telescope in Paranal Observatory in Chile
- VISTA Hemispheric Survey:
- VISTA: 4.1 meter telescope in Paranal Observatory in Chile
- VISTA Kilodegree Infrared Galaxy Survey:
- VISTA: 4.1 meter telescope in Paranal Observatory in Chile
- VISTA Magellanic Survey:
- VISTA: 4.1 meter telescope in Paranal Observatory in Chile
- VISTA Variables in the Via Lactea Survey:
- VISTA: 4.1 meter telescope in Paranal Observatory in Chile
- visual:
- V: photometric filter for visible light
- visual binary: binary star system in which both stars can be seen
- visual double:
- visual grouping:
- asterism: easily recognizable star pattern
- visual magnitude:
- magnitude: a logarithmic measure of brightness
- visualization:
- OpenSpace: visualization software aimed at astrophysical data
- Partiview: visualization software aimed at 4D data
- Uniview: planetarium software
- VLA:
- Vlasov equation:
- Vlasov-Maxwell equation:
- Vlasov-Poisson equation: equation describing plasma ignoring the magnetic field
- Vlasov-Poisson system:
- VLBA:
- VLBA MK:
- VLBI:
- VLBI Exploration of Radio Astrometry:
- VLBI Space Observatory Program:
- HALCA: Japanese space radio telescope operating 1997-2005
- VLF:
- VLOT:
- VLT:
- VLT Survey Telescope (VST): survey telescope located at the VLT site
- VLT-FLAMES Tarantula Survey (VFTS): VLT spectroscopic survey of massive stars
- VLT-SPHERE:
- SPHERE: VLT instrument for imaging exoplanets
- VLTI:
- VLTP:
- thermal pulse: pulse in an AGB star due to helium fusion in a shell
- VMC:
- VISTA: 4.1 meter telescope in Paranal Observatory in Chile
- VO:
- Vogt-Russell theorem (VR theorem): proposition that a star's structure depends on its mass and makeup
- void: empty spaces between large scale structures
- void filament:
- void fraction:
- porosity: fraction of the volume of solid material that is open or void
- void galaxy: galaxy within a void
- voids:
- Voigt function:
- Voigt profile: mathematical shape that models spectral lines
- volatile:
- volatile compound:
- volatile element:
- volatile material: material with low condensation temperature
- ice giant: planet more massive than gas planets and less than rocky planets
- refractory material: material with high condensation temperature
- volt:
- voltage:
- volume phase holographic grating:
- volume weighting: method of accommodating the Malmquist bias
- volumetric analysis:
- titration: analyzing a chemical solution by color change
- Vorontsov-Velyaminov planetary nebula type:
- vortensity: ratio of vorticity to mass density
- vortex: fluid region where the flow is spinning
- vorticity:
- vortensity: ratio of vorticity to mass density
- vortex: fluid region where the flow is spinning
- Voyager: space probes to observe planets and the edge of the solar system
- Ganymede: well-known Jupiter moon
- heliopause: boundary between solar wind and the interstellar medium
- Io: well-known Jupiter moon
- Voyager 1:
- heliosheath: region just beyond the heliosphere
- Voyager: space probes to observe planets and the edge of the solar system
- Voyager 2:
- Neptune: outer-most solar system planet
- Uranus: second outer-most solar system planet
- Voyager: space probes to observe planets and the edge of the solar system
- VPH grating:
- VPHAS+:
- VR theorem:
- Vogt-Russell theorem (VR theorem): proposition that a star's structure depends on its mass and makeup
- VRE:
- VRM:
- VRO:
- Rubin Observatory (VRO,LSST): 8-meter survey reflector telescope under construction in Chile
- VSA:
- VSOP:
- HALCA: Japanese space radio telescope operating 1997-2005
- VSOP 2:
- HALCA: Japanese space radio telescope operating 1997-2005
- VSOP B:
- HALCA: Japanese space radio telescope operating 1997-2005
- VST:
- VST ATLAS:
- VST Photometric Hα Survey of the Southern Galactic Plane:
- Vulcanoid:
- asteroid: minor planet without comet characteristics
- VV:
- VV Cephei:
- VV Cephei system:
- VV2000c:
- VVDS:
- VVO:
- VVV:
- VISTA: 4.1 meter telescope in Paranal Observatory in Chile
- Vys:
Index