Bombelli is a small lunar

Moon

The Moon is Earth's only known natural satellite,There are a number of near-Earth asteroids including 3753 Cruithne that are co-orbital with Earth: their orbits bring them close to Earth for periods of time but then alter in the long term . These are quasi-satellites and not true moons. For more...

 impact crater

Impact crater

In the broadest sense, the term impact crater can be applied to any depression, natural or manmade, resulting from the high velocity impact of a projectile with a larger body...

 that is located in the highlands to the north of the Sinus Successus

Sinus Successus

The lunar feature Sinus Successus lies along the eastern edge of Mare Fecunditatis. It is an outward bulge that forms a type of bay. The selenographic coordinates of Sinus Successus are 0.9° N, 59.0° E, and the diameter is 132 km.Along the eastern edge of the bay is the flooded crater Condon,...

. It was previously designated Apollonius T before being named by the IAU

International Astronomical Union

The International Astronomical Union IAU is a collection of professional astronomers, at the Ph.D. level and beyond, active in professional research and education in astronomy...

. The crater Apollonius

Apollonius (crater)

Apollonius is a lunar crater located near the eastern limb of the Moon. It lies in the region of uplands to the west of Mare Undarum and northeast of the Sinus Successus on the Mare Fecunditatis...

is located to the east-southeast.

This is a roughly circular crater with a slight outward protrusion to the south-southwest. There is a small interior floor at the mid-point of the sloping interior walls, which is roughly one fourth the diameter of the crater.