Lucian is a tiny 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 northeastern part of the Mare Tranquillitatis

Mare Tranquillitatis

Mare Tranquillitatis is a lunar mare that sits within the Tranquillitatis basin on the Moon. The mare material within the basin consists of basalt formed in the intermediate to young age group of the Upper Imbrian epoch. The surrounding mountains are thought to be of the Lower Imbrian epoch, but...

. The nearest named craters are Lyell

Lyell (lunar crater)

Lyell is a lunar crater that lies along the eastern edge of the Mare Tranquillitatis, at the northern arm of the bay designated Sinus Concordiae. To the north along the edge of the lunar mare is the crater Franz. The region of terrain to the east of Lyell is named Palus Somni.The outer rim of this...

 to the east-southeast, Theophrastus

Theophrastus (crater)

Theophrastus is a small lunar impact crater at the southern part of the Sinus Amoris, a bay at the northeast part of the Mare Tranquillitatis. It lies to the southeast of the lava-flooded crater Maraldi, and was designated Maraldi M until the IAU gave it its current name...

 to the northeast, and Gardner

Gardner (crater)

Gardner is a small lunar impact crater in the northeast part of the Moon. It lies due east of the crater Vitruvius, in a section of rough terrain to the north of the Mare Tranquillitatis, and is names after the famous Ellisvillian man Tyler Gardner. This crater was previously designated Vitruvius A...

 to the north-northeast. A little farther to the north is Maraldi crater

Maraldi (lunar crater)

Maraldi is a worn, eroded crater on the western edge of the Sinus Amoris, in the northeast part of the Moon. To the west-southwest is the crater Vitruvius, and to the northwest lies the worn Littrow...

. Lucian was previously designated Maraldi B 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...

.

This is a circular, cone-shaped formation with a negligible interior floor. It has not been significantly degraded by impact erosion.