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:
http://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
appulse
atmosphere
barycenter
biosignature
black hole (BH)
Bohr model
bolometric luminosity (LBol)
celestial sphere
coeval
complex crater
constellation
core collapse
corona
cosmic dust
cosmic web
circular polarization ratio (CPR)
corotation resonance (CR)
decretion disk
diffuse interstellar bands (DIBs)
dielectric
disk
distance modulus (μ)
dynamo
Eddington luminosity
ephemeris
extended source
free-fall time
Gaia
galactic plane
galaxy cloud
giant planet formation
gravitational field
gravitationally bound
guide star (GS)
Guide Star Catalog (GSC)
Hayashi limit
hypercompact stellar system (HCSS)
heating
Hill radius
horizontal coordinate system
hydrodynamic equations
hydrostatic equilibrium
International Celestial Reference System (ICRS)
instability region
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
luminosity (L)
MACHO
Magellanic clouds (MC)
magnetic field
magnetosphere
mass extinction
Messier Catalog (M)
metallicity (Z)
meteoroid
Milky Way subgroup
moment of inertia factor
monochromatic luminosity
solar mass (MSun)
natural astronomical telescopes
near-Earth object (NEO)
neutrino (ν)
neutron scattering
non-thermal emission
nutation
observable universe
occultation
occultation observations
opposition
orbital element
Palomar-Green Survey (PG)
phase curve
phone number
plate
probability mass function (PMF)
point source
precession
projected separation
protected region
protoplanetary disk (PPD)
protostar
PSF fitting
pulsar (PSR)
radial velocity (RV)
redshift (z)
reduced mass
retrieval
Roche limit
Roche lobe
rotation period
spectral energy distribution (SED)
soft gamma repeater (SGR)
SIMBAD
spectral line energy distribution (SLED)
solid angle (Ω)
speckle masking
spectroscopy
standard candle
standard gravitational parameter (μ)
Stefan-Boltzmann constant (σ)
stellar flare
survey-based designator
telluric line
thermal inertia
thermal runaway
tidal migration
tidal Q
theory of figures (TOF)
transit
transiting planet
Two Micron All-sky Survey (2MASS)
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