Astronomy Terms
aberration of starlight
aphelion
apogee
armillary sphere
asteroid
astrolabe
azimuth
big bang theory
black hole
celestial sphere
conjunction
Copernican theory
corona
cosmology
declination
double star
ecliptic
equinox
magnitude
meteorite
nadir
nebula
nova
nutation
orrery
perigee
perihelion
Ptolemaic theory
pulsar
quasar
red shift
singularity
solstice
steady-state theory
super nova
syzygy
zenith