(a.) Pertaining to the physics of astronomical science.

Cynthian aerophysical anagalactic asteroidal astral astrologic astrologistic astrologous astronomic celestial circumplanetary cislunar empyreal empyrean equinoctial extragalactic galactic heavenly heliacal intercosmic interplanetary intersidereal interstellar lunar lunary lunate lunular lunulate meteoric meteoritic nebular nebulose nebulous physical planetal planetarian planetary planetesimal semilunar sidereal solar sphery star-spangled star-studded starry stellar stellary terrestrial uranic zodiacal