Holden is a 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...

 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...

 attached to the southeast rim of the much larger crater Vendelinus

Vendelinus (crater)

Vendelinus is an ancient lunar impact crater located on the eastern edge of Mare Fecunditatis. To the north of Vendelinus is the prominent crater Langrenus, while to the southeast is Petavius, forming a chain of prominent craters near the eastern rim...

. The crater rim is impacted by a craterlet on the north-northwest, and it possesses a terrace along the northeast interior wall. The floor of the crater is flat with no central peak. There is a small crater on the floor just to the south of the mid-point. It is named after Edward Singleton Holden

Edward Singleton Holden

Edward Singleton Holden was an American astronomer.-Early years:He was born in St. Louis, Missouri in 1846 to Jeremiah and Sarah Holden. From 1862-66, he attended Washington University in St. Louis, where he obtained a B.S. degree...

.

Satellite craters

By convention these features are identified on lunar maps by placing the letter on the side of the crater mid-point that is closest to Holden.

Holden	Latitude	Longitude	Diameter
R	20.7° S	61.1° E	18 km
S	20.4° S	61.5° E	15 km
T	19.0° S	64.2° E	9 km
V	18.4° S	62.1° E	10 km
W	19.0° S	60.1° E	12 km