Tags: Crater.
Kao is a small lunar crater that is located near the eastern limb of the Moon. It lies near the southern edge of the Mare Smythii a lunar mare that continues onto the far side of the surface. This crater lies to the east-southeast of the crater Widmannstätten. Less than a crater diameter to the north-northeast is the small crater Tucker.This crater forms part of a merged pair with Helmert to the south.