Wikipedia
Crommelin is an ancient lunar crater that is located in the vicinity of the south pole of the Moon, on the far side. It lies to the north of the large crater Zeeman, and to the east-northeast of Numerov.
This formation has been almost completely worn away by subsequent impacts, leaving little more than a crater-riddled depression in the surface. There is an equally worn crater lying across the northern rim, and Crommelin X is attached to the outward-bulging northwest perimeter. The largest of the craterlets within the interior form a pair near the southern rim. There is a slight central peak, consisting of little more than a low rise in the surface.
Crommelin may refer to:
People::* Andrew Claude de la Cherois Crommelin, astronomer
:* Daniel Crommelin Verplanck, U.S. politician
:* John G. Crommelin, U.S. Navy officer
:* May Crommelin, writer
:* Timothy John Crommelin Eggar, British politician
Craters named Crommelin::* Crommelin (lunar crater)
:* Crommelin (Martian crater)
Comet named Crommelin::* 27P/Crommelin
Military Ship::* USS Crommelin
Crommelin Crater is an impact crater in the Oxia Palus quadrangle of Mars, located at 5.1°N latitude and 10.2°W longitude. It is 113.9 km in diameter and was named after Andrew Crommelin, and the name was approved in 1973 by the International Astronomical Union (IAU) Working Group for Planetary System Nomenclature (WGPSN). The crater shows many layers. Many places on Mars show rocks arranged in layers. Rock can form layers in a variety of ways. Volcanoes, wind, or water can produce layers. Groundwater may have been involved in the formation of layers in some places.
Wikicrommelin.jpg|Crommelin (Martian crater), as seen by CTX camera (on Mars Reconnaissance Orbiter). Wikicrommelinlayersdevils.jpg|Crommelin crater showing layers and dust devil tracks, as seen by CTX camera (on Mars Reconnaissance Orbiter). Note: this is an enlargement of a previous image of Crommelin crater. Wikicrommelinlayeredovals.jpg|Crommelin crater showing layers arranged in the shape of ovals, as seen by CTX camera (on Mars Reconnaissance Orbiter). Note: this is an enlargement of a previous image of Crommelin crater. Wikicrommelincraterlayers.jpg|Crommelin crater showing layers in buttes and inside a small crater, as seen by CTX camera (on Mars Reconnaissance Orbiter). Note: this is an enlargement of a previous image of Crommelin crater. ESP 035896 1845crommelin.jpg|Crommelin crater, showing layers, as seen by HiRISE
Wikiesp 035896 1845crommelinbutte.jpg|Butte in Crommelin Crater, as seen by HiRISE under HiWish program. Location is Oxia Palus quadrangle. Wikiesp 035896 1845crommelinhollows.jpg|Layers in Crommelin Crater, as seen by HiRISE under HiWish program. Location is Oxia Palus quadrangle. Wikiesp 035896 1845crommelinfaults.jpg|Layers in Crommelin Crater, as seen by HiRISE under HiWish program. Arrow indicates fault. Location is Oxia Palus quadrangle.