Related terms:
ngc
messier
stellar
luminosity
planeta
brightest
brown dwarfs
main sequence
star cluster
copernicus
right ascension
orbital zone
open clusters
iau
orbit around
declination
planetary
extrasolar
celestial
plutoid
nebulosa
space telescope
telescope
gas giants
brightest star
precession
ephemeris
elliptical galaxy
terrestrial planets
nebula
Wikipedia sources:
Astronomer
Vega
Sirius
Definition of planet
Nova
Comet Hale-Bopp
Geocentric model
Comet Shoemaker-Levy 9
A Trip to the Moon
Crab Nebula
Charon (moon)
Orion Nebula
Ephemeris
Dwarf planet
Globular cluster
Charge-coupled device
Habitable zone
Planetary nebula
Quasar
Babylonian mathematics
Pleiades (star cluster)
Right ascension
Gas giant
Ecliptic
Terrestrial planet
Sunspot
Epoch (reference date)
Brown dwarf
Subrahmanyan Chandrasekhar
Giordano Bruno
Context for words:
astronomers
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