Planets adjectives are listed in this post. Each word below can often be found in front of the noun planets in the same sentence. This reference page can help answer the question what are some adjectives commonly used for describing PLANETS.
alien, attendant, bright, certain, countless, different, distant, entire, extrasolar
farthest, few, giant, great, habitable, individual, inferior, inhabited, inner
large, larger, lesser, like, little, major, many, minor, more
most, nearby, new, only, other, outer, own, primary, principal
remote, respective, rocky, secondary, separate, several, small, smaller, solar
such, superior, terrestrial, various, visible, vivid, whole
Hope this word list had the adjective used with planets you were looking for. Additional describing words / adjectives that describe / adjectives of various nouns can be found in the other pages on this website.