interstellar (adj.)

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