Astrophysics (Index)About

astronomical object

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

An astronomical object is an object in space, i.e., a star, planet (or SSSB), or meteoroid, or something less solid such as a galaxy or cloud. The terms celestial body and astronomical body mean the same, but suggest 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, 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
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:
aberration
absorption line
accretion
accretion disk
amateur astronomy
angular distance
appulse
astronomical catalog
atmosphere
Balmer jump (BJ)
barycenter
black hole binary (BHB)
biosignature
black hole (BH)
Bohr model
bolometric luminosity (LBol)
Bondi radius
Boötes Field
celestial mechanics
celestial reference frame
celestial sphere
cosmic optical background (COB)
coeval
collimator
comet
complex crater
constellation
core collapse
corona
cosmic dust
cosmic web
circular polarization ratio (CPR)
corotation resonance (CR)
Decadal Survey
decretion disk
diagnostic
diffuse interstellar bands (DIBs)
dielectric
disk
distance modulus (μ)
damped Lyman alpha absorber (DLA)
Doppler shift
dynamo
eccentricity (e)
Eddington luminosity
emission
ephemeris
epoch
Euclid
extended source
free-fall time
Gaia
galactic coordinate system (GCS)
galactic plane
galaxy cloud
Giant GRB Ring
giant planet formation
gravitational potential energy
gravitational field
gravitationally bound
gravitational potential model
gravity assist
guide star (GS)
Guide Star Catalog (GSC)
Hayashi limit
hypercompact stellar system (HCSS)
HD 114762
HD 169142
heating
high-resolution imaging
Hill radius
horizontal coordinate system
Hubble expansion
hydrodynamic equations
hydrodynamics
hydrostatic equilibrium
ICRF
International Celestial Reference System (ICRS)
instability region
interferometer
isothermal core
epoch J2000.0
J designator
jet
Keplerian orbit
Kelvin-Helmholtz timescale (KH timescale)
kinematic distance
Lagrangian point
Laplace-Lagrange secular theory
limb
limiting magnitude
line broadening
luminosity (L)
light-year (ly)
MACHO
Magellanic clouds (MC)
magnetic field
magnetosphere
mass extinction
mass function
mass transfer
Messier Catalog (M)
metallicity (Z)
meteoroid
Milky Way subgroup
moment of inertia factor
monochromatic luminosity
Morgan classification
solar mass (MSun)
natural astronomical telescopes
near-Earth object (NEO)
NEO Surveyor
neutrino (ν)
neutron scattering
New General Catalogue (NGC)
non-thermal emission
nutation
observable universe
occultation
occultation observations
opposition
orbital element
PDS 70
Palomar-Green Survey (PG)
phase curve
phone number
photometric redshift (photo-z)
plate
probability mass function (PMF)
point source
precession
projected separation
protected region
protoplanetary disk (PPD)
protostar
PSF fitting
pulsar (PSR)
radial velocity (RV)
radiant flux
rare designator prefixes
redshift (z)
redshift space
reduced mass
retrieval
Roche limit
Roche lobe
rotation period
spectral energy distribution (SED)
Sedna
soft gamma repeater (SGR)
SIMBAD
spectral line energy distribution (SLED)
solid angle (Ω)
source
speckle masking
spectroscopy
stacking
standard candle
standard gravitational parameter (μ)
Stefan-Boltzmann constant (σ)
stellar flare
surface gravity (g)
survey-based designator
systemic velocity
telluric line
thermal inertia
thermal runaway
tidal migration
tidal Q
theory of figures (TOF)
transit
transiting planet
Two Micron All-sky Survey (2MASS)
UK Schmidt Survey
u-v plane
water activity (aw)
wide binaries (WB)
James Webb Space Telescope (JWST)
Roman Space Telescope (RST)
Wien's displacement law
X-ray burster (XRB)
Y-type star (Y)

Index