This is a Moon Phase icon. We've made it in iOS style, first introduced in iOS version 7 and supported in all later releases up until now (at least iOS 11). This style is based on thin two-pixel lines and is optimized for 50x50 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 13,000 icons, all in the same style and quality.
It's a drawing of a circle, with two small dimples. One dimple is at about 11 o'clock and the other one is at about 3 o'clock. Inside of the circle, on the right side, are evenly spaced dots in a sideways W pattern. On the left side of the circle there are two small half circles.
Related to Moon Phase Icon
Related icons are the icons with matching tags, as well as all cinema icons. All icons are in the same flat style. You can either download free PNG icons or buy SVG vectors