Jenkins 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 lies along the equator

Equator

An equator is the intersection of a sphere's surface with the plane perpendicular to the sphere's axis of rotation and containing the sphere's center of mass....

 of 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...

, near the eastern limb. It is attached to the eastern rim of the slightly larger crater Schubert X, intruding somewhat into the interior. The crater Nobili

Nobili (crater)

Nobili is a lunar crater that lies near the eastern limb of the Moon, giving it a foreshortened appearance when viewed from the Earth. The crater overlies the western rim of the slightly larger crater Schubert X, and the eastern rim of this satellite crater is overlain in turn by Jenkins, resulting...

 is likewise attached to the western rim of Schubert X and intrudes slightly into the interior on that side. The three craters form a linear chain along the equator.

This formation was previously designated Schubert Z before being given its current 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...

. Schubert

Schubert (lunar crater)

Schubert is a lunar impact crater that lies near the eastern limb of the Moon's near side. The crater is located to the northwest of the Mare Smythii, and southwest of the prominent crater Neper...

 itself is located to the northeast of Jenkins. To the east-northeast of Jenkins lies the crater Back

Back (crater)

Back is a small lunar impact crater that is located near the eastern limb of the Moon. It lies on the northwest edge of the Mare Smythii, and the northeast rim is adjacent to the crater Schubert. To the west is Jenkins, and to the southwest is the Weierstrass–Van Vleck crater pair. The crater Back...

, and to the south is the crater pair of Van Vleck

Van Vleck (crater)

Van Vleck is a lunar impact crater that is located near the northeastern rim of the walled plain Gilbert, to the west of the Mare Smythii. The similar crater Weierstrass is nearly joined to the northwestern rim of Van Vleck...

 and Weierstrass

Weierstrass (crater)

Weierstrass is a small lunar crater that is attached to the northern rim of the walled plain Gilbert, in the eastern part of the Moon. It also lies very near the crater Van Vleck, a similar formation just to the southeast that is almost attached to the outer rim...

.

This is a circular crater with a somewhat worn rim. The small crater Schubert J is attached to the exterior along the southeast. The western rim of Jenkins is marked by several small craterlets. The interior floor is relatively featureless, and is marked by a few tiny craterlets. There is no central peak on the floor.