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