Idea of Moon and Stars Icon
It's a logo of a fat crescent moon with its upper right missing to make the crescent shape. To its upper left are two stars represented by one slightly bigger and one slightly smaller plus sign.
This Moon and Stars icon is made in Material Design style
developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 6,100 icons, all in the same style and quality.