Astrophysics (Index)About

astronomical object

(object, celestial body, astronomical body, body, celestial object)
(planet, star, galaxy, etc.)

Astronomical object is one of the general terms for an object in space such as a star, planet (or SSSB), or meteoroid, or something less solid such as a galaxy or cloud. Other terms are celestial body and astronomical body, but each suggests some particular characteristics: "body" perhaps suggests an object more distinct than a cloud, such as a planet or star, and "celestial" perhaps suggests something observable in the sky (i.e., the celestial sphere) though the terms are not always used in these respects. For some of the types of astronomical objects, see list of object types.


(astronomy)
Further reading:
https://en.wikipedia.org/wiki/Astronomical_object
https://dictionary.obspm.fr/index.php?formSearchTextfield=astronomical+object&showAll=1
http://www.seasky.org/celestial-objects/celestial-objects.html
https://en.wiktionary.org/wiki/celestial_body
https://www.universetoday.com/48671/celestial-body/
https://www.vedantu.com/physics/celestial-bodies

Referenced by pages:
21-cm experiment
21-cm line
2dF Galaxy Redshift Survey (2dFGRS)
2dF-SDSS LRG and QSO survey (2SLAQ)
4MOST
51 Eridani b
Abell 1689 (A1689)
aberration
absorption line
abundances
accretion
accretion disk
accretion rate
actuator
adaptive optics (AO)
advection dominated accretion flow (ADAF)
aerosols
albedo
All Sky Automated Survey for SuperNovae (ASAS-SN)
alpha disk
altazimuth mount
angular distance
angular power spectrum
apodization
apparent magnitude (m)
appulse
apsis
arcsecond (arcsec)
asterism
asteroid belt
astrometry
astronomical catalog
astronomical survey
atmosphere
atmospheric tide
axisymmetric
Baade's Window
Balmer jump (BJ)
Balmer series (H)
Barnard Catalog (Barnard)
barrier
barycenter
baseline
BDF
Beta Pictoris b (β Pic b)
binary companion
binary minor planet (BMP)
biosignature
bipolar outflow
black body (BB)
black hole (BH)
black hole binary (BHB)
black hole merger
black hole model
blazar
blended spectra
blind survey
Boötes Field
Bohr model
bolometric luminosity (LBol)
bolometric magnitude (Mbol)
Boltzmann transport equation (BTE)
Bondi radius
Bouguer anomaly
bracket notation
bright nebula
brown dwarf (BD)
Caldwell Catalog
candidate companion (CC)
Catalogue of Galactic Planetary Nebulae (PK)
celestial coordinate system
celestial mechanics
celestial reference frame
celestial sphere
Centre de données astronomiques de Strasbourg (CDS)
Chandra X-ray Observatory (CXO)
chaos theory
chirp mass (Mc)
circular polarization ratio (CPR)
coeval
collecting area
collisional erosion
color index
color-color diagram (CCD)
color-magnitude diagram (CMD)
comet
comet planet
common envelope (CE)
comoving units
compact object (CO)
comparator
completeness
complex crater
Compton scattering
constellation
continuous gravitational wave
core collapse
corona
coronagraph
corotation resonance
correlator
cosmic distance ladder
cosmic dust
cosmic optical background (COB)
cosmic web
cosmological distance
cosmological redshift
cosmology
counterpart
Crab Nebula (M1)
critical density (ρc)
crustal plates
current sheet
damped Lyman alpha absorber (DLA)
dark flow
dark galaxy
dark matter (DM)
dark matter detector
dark star
data folding
decretion disk
demographics
density parameter
deuterium burning
diagnostic
dielectric
diffractive interstellar scintillation (DISS)
diffuse interstellar bands (DIBs)
direct imaging
disk
distance modulus (μ)
Doppler shift
double transit
dust trap
dwarf planet
dynamical friction
dynamo
eccentricity (e)
eclipse mapping
ecliptic coordinate system
Eddington luminosity
effective temperature (Teff)
Einstein delay
ejection
emission
emission-line object
energy
ephemeris
epicycle
epoch
epoch J2000.0
equatorial coordinate system (EQ)
escape fraction
escape velocity (Ve)
ESO 3.6m Telescope
ESO/Uppsala Survey of the ESO (B) Atlas
Euclid
Europa
Event Horizon Telescope (EHT)
extended source
extinction
extra-solar planet
extreme mass ratio inspiral (EMRI)
extremely red object (ERO)
fiber positioner
field
filament
filter
flyby
forbidden line
foreground subtraction
free-air anomaly
free-fall time
free-floating planet (FFP)
Gaia
Gaia Celestial Reference Frame (Gaia-CRF3)
galactic astronomy
galactic binary
galactic coordinate system (GCS)
galactic plane
galaxy
galaxy cloud
Galaxy Zoo
gamma-ray burst (GRB)
gas fraction estimation
gas-to-dust ratio (GDR)
Giant GRB Ring
giant planet formation
Goddard gravity model (GGM)
GOODS-South
gravimetry
gravitational collapse
gravitational field
gravitational instability (GI)
gravitational lensing
gravitational microlensing
gravitational potential energy
gravitational potential model
gravitational potential well
gravitational redshift
gravitational wave (GW)
gravitational wave spectrum
gravitationally bound
gravity
gravity anomaly
gravity assist
gravity sounding
Great Debate
guide star (GS)
Guide Star Catalog (GSC)
GW detection (GW)
habitable zone (HZ)
Hadley cell
halo orbit
Hanbury Brown and Twiss effect (HBT effect)
Haumea
Hayashi limit
HCI
HD 114762
HD 169142
heating
Heggie-Hills law
Herbig-Haro object (HH)
high-B radio pulsar (HBRP)
high-resolution imaging
Hill radius
Hipparcos Celestial Reference Frame (HCRF)
Hoag's Object
homologous collapse
horizontal coordinate system
hot DOG
Hubble Deep Field South (HDF-S)
Hubble diagram
Hubble expansion
hydrocarbon (HC)
hydrodynamic equations
hydrodynamic escape
hydrodynamics
hydrology
hydrostatic equilibrium
hypercompact stellar system (HCSS)
ICRF
imaging spectrometer
impact
Index Catalog (IC)
infrared (IR)
infrared excess (IRX)
instability region
integration time
intensity interferometer
intensity mapping (IM)
interferometer
International Astronomical Union (IAU)
International Celestial Reference System (ICRS)
interstellar holography
interstellar medium (ISM)
interstellar radiation field (ISRF)
ionization correction factor (ICF)
isolation mass
isothermal core
isotropy
J designator
J2
James Webb Space Telescope (JWST)
Jeans parameter (λ)
jet
K correction
Kelvin-Helmholtz mechanism (KH mechanism)
Kelvin-Helmholtz timescale (KH timescale)
Kepler's laws
Keplerian disk
Keplerian orbit
kinematic distance
Kirkwood gap
Kozai mechanism (ZLK)
Kuiper Belt (K Belt)
Lagrange stability
Lagrangian point
Laplace radius (rL)
Laplace-Lagrange secular theory
Large Binocular Telescope (LBT)
Large Magellanic Cloud (LMC)
large quasar group (LQG)
lava planet
LB-1
LDN 1689
LEDA
libration
light cone
light curve
light-year (ly)
limb
limb darkening
Limber approximation
limiting magnitude
Lindblad resonance
Lindblad torque
line broadening
local standard of rest (LSR)
long-period comet
Love number
luminosity (L)
luminosity distance (dL)
luminosity function (LF)
luminous infrared galaxy (LIRG)
Lyapunov time
Lyman break (LB)
Lyman-alpha forest
Lyot stop
MACHO
Magellanic Clouds (MC)
magnetic anomaly
magnetic field
magnetic induction
magnetic reconnection
magnetosphere
magnetospheric truncation radius
magnitude
Malmquist bias
mass extinction
mass function
mass ratio (μ)
mass shell
mass spectrometer
mass transfer
mass transport
mass-radius relation
Maxwell-Boltzmann distribution
mean anomaly
mechanics
meridian
Messier Catalog (M)
metal
metallicity (Z)
meteorite
meteoroid
microquasar
Milky Way subgroup
Millennium Galaxy Catalogue (MGC)
minimum orbit intersection distance (MOID)
minor planet
molecular cloud
moment of inertia factor
monochromatic luminosity
Moon formation
Morgan classification
morphology
N-body problem
N-body simulation
NASA/IPAC Extragalactic Database (NED)
natural astronomical telescopes
near infrared (NIR)
near-Earth object (NEO)
nebula
nebular hypothesis
NEO Surveyor
neutrino (ν)
neutrino hotspot
neutron scattering
neutron spectrometer
neutron star (NS)
neutron star merger
New General Catalogue (NGC)
New Technology Telescope (NTT)
NGC 2363
NGC 3314
nitrite (NO2-)
non-thermal emission
nutation
observable universe
occultation
occultation observations
occulting bar
Oort Cloud
OpenSpace
opposition
optical transient (OT)
orbit plot
orbital decay
orbital element
orbital period
orbital resonance
orbital speed
Orion
Orion Molecular Cloud Complex
Oumuamua
Palomar Observatory Sky Survey (POSS)
Palomar-Green Survey (PG)
Pan-STARRS
parts per million (PPM)
PDS 70
peculiar velocity
phase angle
phase curve
phone number
photometric redshift (photo-z)
photometry
photon noise
plane-parallel atmosphere
planet
planet formation
Planet Nine
planetary differentiation
planetary embryo
planetary mass object (PMO)
planetary nebula (PN)
planetary protection
planetary science
planetary system
planetesimal
planetoid
plate
plate measuring machine (APM)
Pluto
plutoid
Poincaré section
point source
position angle (PA)
positional astronomy
precession
precipitable water vapor (PWV)
Press-Schechter formalism
primary
probability mass function (PMF)
projected semi-major axis
projected separation
protected region
protoplanet
protoplanetary disk (PPD)
protostar
provisional designation
PSF fitting
pulsar (PSR)
Q factor
quake
quantum mechanics (QM)
quasar (QSO)
quasi-satellite
radial velocity (RV)
radial velocity method
radiant flux
radio galaxy (RG)
radio science
radio source (RS)
RAMBO
rare designator prefixes
red clump (RC)
reddening
redshift (z)
redshift space
redshift-angular size relation
reduced mass
regolith
relativistic beaming
relic
rest wavelength
retrieval
retrograde accretion
retrograde orbit
right ascension (RA)
Roche limit
Roche lobe
Roemer delay
Roman Space Telescope (RST)
Rosat Bright Survey (RBS)
Rossiter-McLaughlin effect (RM effect)
rotation curve
rotation period
scale factor (a)
scale height (H)
Schwarzschild radius (RS)
Scott effect
secondary eclipse
secular
Sedna
seismic waves
self-gravitation
semi-major axis (a)
SGR 1935+2154
Shapiro delay
sidereal
SIMBAD
sky subtraction
SkyMapper Southern Survey (SMSS)
slew survey
Sloan Digital Sky Survey (SDSS)
soft gamma repeater (SGR)
solar day
solar luminosity (LSun)
solar mass (MSun)
solar system
solar system object (SSO)
solid angle (Ω)
sounder
source
specific angular momentum (J)
speckle masking
speckle suppression
spectral energy distribution (SED)
spectral line energy distribution (SLED)
spectral signature
spectral temperature
spectroscopy
spin (ms)
spiral density wave
SSSB (SB)
stacking
standard candle
standard gravitational parameter (μ)
star
star formation feedback
star system
stationkeeping
Stefan-Boltzmann constant (σ)
stellar flare
stellar merger
stellar-mass black hole (stellar-mass BH)
Strasbourg-ESO Catalog of Galactic Planetary Nebulae (PNG)
stratigraphy
StrayCats
stripped star
strong-field gravity
subsatellite
substellar object
supermassive black hole (SMBH)
SuperWASP (SWASP)
surface brightness (SB)
surface density (Σ)
surface gravity (g)
survey field
survey-based designator
synchronous orbit
synthetic photometry
synthetic spectrum
systemic velocity
Taurus­
telescope
telluric line
telluric star
temperature
templates
Terrestrial Time (TT)
theory of figures (TOF)
thermal dust emission
thermal inertia
thermal runaway
TianQin
tidal capture
tidal disruption event (TDE)
tidal force
tidal heating
tidal locking
tidal migration
tidal Q
tidal tail
tide
time-delay cosmology
timescale (t)
tired light
titanium (Ti)
Titius-Bode law
Tolman VII object
Tonantzintla Surveys (Ton)
traditional approximation of rotation (TAR)
transient (AT)
transient astronomy
transit
transit method
transit timing variations (TTV)
Transiting Exoplanet Survey Satellite (TESS)
transiting planet
Triangulum Galaxy (M33)
Triton
Tucana Horologium association (THA)
turbulence
Two Micron All-sky Survey (2MASS)
u-v plane
UK Schmidt Survey
Urca process
Van Allen belts
Vela
velocity kick
Virgo
virial theorem
volume weighting
water (H2O)
water activity (aw)
weak lensing (WL)
weathering
WEAVE
Wesenheit function
white dwarf (WD)
wide binaries (WB)
Wien's displacement law
WINGS
WISE 0855-0714 (W0855)
X-ray burster (XRB)
X-ray source
Y-type star (Y)
Yarkovsky effect
Yarkovsky-O'Keefe-Radzievskii-Paddack effect (YORP)
zenith
zonal flow
zone of avoidance (ZOA)

Index