sidereal (adj.)
- asteroidal
 - astral
 - astronomic
 - astrophysical
 - celestial
 - cislunar
 - empyreal
 - empyrean
 - equinoctial
 - extragalactic
 - galactic
 - heavenly
 - heliacal
 - interplanetary
 - interstellar
 - lunar
 - lunary
 - lunate
 - meteoric
 - meteoritic
 - nebular
 - nebulose
 - nebulous
 - planetal
 - planetary
 - semilunar
 - solar
 - starry
 - stellar
 - terrestrial
 - uranic
 - zodiacal