There is a circle with a fatten ring around its middle encircling it. There is no space between the ring and the sphere. Nor is there any details on the main circle or the ring.
This Planet 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 5,500 icons, all in the same style and quality.