Only in Moon & Ultra Moon
Static Encounter: Altar of the Moone (Only in Moon), Mahalo Trail (Only in Ultra Moon)
Gift: Mahalo Trail (Only in Ultra Moon)
Its base catch rate is 45 out of 255 (higher is easier); the catch rate calculator works out your odds with each ball. For the look, the best colour match is Moon Ball or Beast Ball.
Evolution: Cosmog → Cosmoem (Level 43) → Solgaleo (Level 53) · Lunala (Level 53).
Lunala in every game · Pokémon Sun, Moon, Ultra Sun & Ultra Moon interactive map (Alola)