Wan-Hoo 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...

 that is located on the Moon

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...

's far side, and it cannot be seen directly from the Earth

Earth

Earth is the third planet from the Sun, and the densest and fifth-largest of the eight planets in the Solar System. It is also the largest of the Solar System's four terrestrial planets...

. It lies to the southwest of the huge walled plain Hertzsprung

Hertzsprung (crater)

Hertzsprung is an enormous lunar crater that is located on the far side of the Moon, beyond the western limb. In dimension, this formation is larger than several of the lunar mare areas on the near side. It lies in the northwestern fringe of the blast radius of the Mare Orientale impact basin...

, within the outer skirt of ejecta. Just to the south-southwest of Wan-Hoo is the larger crater Paschen

Paschen (crater)

Paschen is a lunar crater on the far side of the Moon. The relatively large satellite crater Paschen M partly overlies the southern rim of Paschen, and they nearly form a merged pair with only a section of irregular terrain along their common border. The smaller but well-formed crater Paschen S...

, and a little over two crater diameters to the northwest is Sechenov

Sechenov (crater)

Sechenov is a lunar impact crater on the far side of the Moon. It lies to the southwest of the huge walled plain Hertzsprung, and to the east-southeast of the crater Timiryazev. To the south-southeast of Sechenov lies Paschen....

.

Like much of the surrounding terrain, this crater has been modified by the ejecta from Hertzsprung, and material from that impact encroaches along the inner walls and interior of Wan-Hoo. Attached to the east-southeastern outer rim is a large satellite crater, Evans Q, belonging to Evans

Evans (crater)

Evans is the remnant of a lunar crater that is located on the far side of the Moon. It lies to the south-southwest of the immense walled plain Hertzsprung, and is located within that impact basin's broad skirt of ejecta. This material has overflowed the northern rim of Evans and the northern part...

 farther to the east. There is also a small, relatively fresh crater attached to the southeast, and a small, cup-shaped craterlet along the western rim.

This feature was named after Wan Hu

Wan Hu

According to legend, Wàn Hǔ was a minor Chinese official of the Ming dynasty who attempted to become the world's first recorded "astronaut". The crater Wan-Hoo on the far side of the Moon is named after him.-The Legend of Wan Hu:...

, a figure of Chinese legend, the alleged first recording of an astronaut

Astronaut

An astronaut or cosmonaut is a person trained by a human spaceflight program to command, pilot, or serve as a crew member of a spacecraft....

.

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 Wan-Hoo.

Wan-Hoo	Latitude	Longitude	Radius
T	10.0° S	140.4° W	21 km