Mons Esam

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Mons Esam
Apollo 17 Mapping Camera Image, with Mons Esam at center, Diana below center, and Grace below right of center
Highest point
Elevation6622 m[1]
ListingLunar mountains
Coordinates14°36′N 35°42′E / 14.6°N 35.7°E / 14.6; 35.7
Locationthe Moon
Oblique view of Mons Esam, facing north, at high sun angle, from Apollo 15
Oblique view of Mons Esam, facing south, at low sun angle, from Apollo 17

Mons Esam is a small, isolated mountain in the northern part of the Mare Tranquillitatis. It is located to the southeast of the crater Vitruvius and to the west-northwest of Lyell. To the northeast of this ridge is the bay called Sinus Amoris.

The selenographic coordinate of this feature is 14.6° N, 35.7° E, and it has a maximum diameter at the base of 8 km. The name of this feature is an Arabic masculine name (Arabic: عصام, romanized: eisam), and it was not chosen to represent a specific individual.[2] This peak is a lunar cone that was formed through tectonic processes, which rises roughly 400 meters above the surrounding plains.[1]

A pair of tiny craters just to the south of Mons Esam have been assigned names by the IAU. These are listed in the table below. The craters are at the tops of two lunar domes, which are most likely volcanoes and were not formed by impacts.

Crater Latitude Longitude Diameter Name source
Diana 14.3° N 35.7° E 2 km Latin feminine name
Grace 14.2° N 35.9° E 1 km English feminine name


  1. ^ a b 61A2S1(50), Grace. Lunar Topophotomap Series. Publisher: Defense Mapping Agency, Topographic Center. Scale: 1:50,000. Projection: Transverse Mercator.
  2. ^ "Mons Esam". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.