There is also a blackish-brown Luma named Polari, who acts as a guide to Rosalina.
The last type of Luma is the Comet Tico, which has the ability to move Prankster Comets. There is also another type of Luma that is pink, known as the Hungry Luma. Lumalee, who is a large, light-blue Luma, hosts the Luma Shop. Pink Lumas transform into pink Launch Stars to get to Hungry Luma galaxies.
Green Lumas are the guardians of the Trial Galaxies and transform into green Launch Stars and Green Stars. Yellow Lumas transform into Sling Stars and Launch Stars and are the most common variety.
While he is the only cream-colored Luma encountered by Mario, the Luma that transformed into the beacon that powers the Comet Observatory is shown to be the same color in Rosalina's storybook's illustration. In Super Mario Galaxy, various Lumas appear on the Comet Observatory and in different galaxies, and Mario is accompanied by a uniquely apricot-colored Luma, who was given to him by Rosalina at the beginning of the game. In Super Mario Galaxy 2, if the Co-Star Luma spins one, it emits three Star Bits. Their name comes from "lumen", a Latin word meaning "light", which is a reference to their future as stars. They call Rosalina their "mama." Most of them make their home with her in the Comet Observatory, and others live on Starship Mario following their leader Lubba, in Super Mario Galaxy 2. Lumas have the ability to transform, from minor planetoids to entire galaxies, and according to Rosalina, some Lumas can even transform into Power Stars. The Lumas are each very friendly and assist Mario during his quest. They are much like Power Stars, but are more circular and have the ability to talk. Unlike most Stars, they have a rain drop-like shape and come in many colors, with the most common one being yellow. Lumas are star-like creatures that first appear in Super Mario Galaxy. “That's the spirit, mushroom man!” - Luma, Super Mario Galaxy