space motion
radial velocity
astrodynamics
fixed star
aberration
capture
asteroseismology
interstellar space
aberration of light
accretion
sidereal time
space velocity
movement
celestial mechanics
stargazing
instellation
Kepler's law of planetary motion
Kepler's law
stardrift
exosystem
motus peculiaris
starfall
synastry
third cosmic velocity
starlight
megamaser
gravitational collapse
orbital mechanics
semidiameter
apex
apex of the sun's way
solar apex
contact binary
Dyson sphere
interplanetary space
proper motion
apastron
multiple star
meteor
infall
hypergravity
black hole
circle
interstellar polarization
pulsator
orbit
lunar orbit
immersion
visual magnitude
double star