Yangel' 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 irregular terrain to the north of the Mare Vaporum

Mare Vaporum

Mare Vaporum is a lunar mare located between the southwest rim of Mare Serenitatis and the southeast rim of Mare Imbrium. The lunar material surrounding the mare is from the Lower Imbrian epoch, and the mare material is from the Eratosthenian epoch. The mare lies in an old basin or crater that is...

. It is a relatively solitary crater formation, and the nearest larger craters lie more than 100 kilometers distant. To the southeast of Yangel' is the prominent crater Manilius

Manilius (crater)

Manilius is a lunar impact crater on the northeast edge of Mare Vaporum. It has a well-defined rim with a sloping inner surface that runs directly down to the ring-shaped mound of scree along the base, and a small outer rampart. The small crater interior has a higher albedo than the surroundings,...

. Conon

Conon (crater)

Conon is a small but prominent lunar impact crater that lies in the eastern foothills of the Montes Apenninus mountain range. Just to the west of Conon is the long mountainous ridge named Mons Bradley...

 is located to the northeast, near the flanks of the Montes Apenninus

Montes Apenninus

Montes Apenninus are a rugged mountain range on the northern part of the Moon's near side. They are named after the Apennine Mountains in Italy....

 range.

Just to the north of Yangel' is the small lunar mare

Lunar mare

The lunar maria are large, dark, basaltic plains on Earth's Moon, formed by ancient volcanic eruptions. They were dubbed maria, Latin for "seas", by early astronomers who mistook them for actual seas. They are less reflective than the "highlands" as a result of their iron-rich compositions, and...

 named Lacus Felicitatis

Lacus Felicitatis

Lacus Felicitatis is a small patch of the lunar surface that has been inundated by flows of lava, leaving a level patch with a lower albedo than the surrounding ground. It is located in Terra Nivium, an area of continental ground to the north of the Mare Vaporum...

, or Lake of Happiness. To the northeast, forming a bay on the Mare Vaporum, is Sinus Fidei

Sinus Fidei

Sinus Fidei is a small basaltic mare feature in the Terra Nivium region of the Moon....

. A sinuous rille

Rille

Rille is typically used to describe any of the long, narrow depressions in the lunar surface that resemble channels. Typically a rille can be up to several kilometers wide and hundreds of kilometers in length...

 named Rima Conon runs along the middle of this feature, reaching the northern end.

This is a circular, bowl-shaped crater with a narrow outer rim. The interior floor has a relatively low albedo

Albedo

Albedo , or reflection coefficient, is the diffuse reflectivity or reflecting power of a surface. It is defined as the ratio of reflected radiation from the surface to incident radiation upon it...

 that matches the dark hue of the mare to the south. This crater was formerly designated Manilius F before being given a name 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...

.

External links

• LTO-41C4 Yangel — L&PI topographic map
  Topographic map
  A topographic map is a type of map characterized by large-scale detail and quantitative representation of relief, usually using contour lines in modern mapping, but historically using a variety of methods. Traditional definitions require a topographic map to show both natural and man-made features...