Astro is a light blue crescent moon. the left side of his face is black with a white star eye. he wears a cornflower blanket wrapped around his torso, obscuring his arms to the point that they are are barely visible as faint furrows in the blanket, however, his blanket is still short enough that it reveals his legs that are the same color as the moon side of his face. there is a indigo strip that goes horizontally around his blanket and it's just above the edge. he wears a dangling sleeping cap the same color as the stripe on his blanket with a light trim and light blue Pom-Pom at the tip. during blackouts, he gives off a blue glow which changes depending on his skin.