Apianus is a
lunar
Lunar most commonly means "of or relating to the Moon".
Lunar may also refer to:
Arts and entertainment
* ''Lunar'' (series), a series of video games
* "Lunar" (song), by David Guetta
* "Lunar", a song by Priestess from the 2009 album ''Prior t ...
impact crater
An impact crater is a circular depression in the surface of a solid astronomical object formed by the hypervelocity impact of a smaller object. In contrast to volcanic craters, which result from explosion or internal collapse, impact craters ...
that is located on the rugged south-central highlands of the
Moon
The Moon is Earth's only natural satellite. It is the fifth largest satellite in the Solar System and the largest and most massive relative to its parent planet, with a diameter about one-quarter that of Earth (comparable to the width of ...
. It is named after 16th century
German
German(s) may refer to:
* Germany (of or related to)
**Germania (historical use)
* Germans, citizens of Germany, people of German ancestry, or native speakers of the German language
** For citizens of Germany, see also German nationality law
**Ger ...
mathematician and astronomer
Petrus Apianus
Petrus Apianus (April 16, 1495 – April 21, 1552), also known as Peter Apian, Peter Bennewitz, and Peter Bienewitz, was a German humanist, known for his works in mathematics, astronomy and cartography. His work on "cosmography", the field that de ...
.
It is located to the northeast of the crater
Aliacensis, and to the northwest of
Poisson. The worn crater
Krusenstern is attached to the west-northwestern rim.
Description
The outer wall of the crater has been worn and eroded by subsequent impacts, and a pair of small craterlets overlay the rim to the southeast and northeast. The central crater is 63 kilometers in diameter and 2,080 meters deep.
[''Autostar Suite Astronomer Edition''. CD-ROM. Meade, April 2006.] The craterlet on the southeast rim, Apianus B, is a member of a cluster of co-joined craterlets that includes Apianus T and Apianus U. The interior floor of the central crater is relatively smooth and lacks a central peak, although the surface appears somewhat convex. Only a few tiny craterlets mark the surface.
The crater is from the
Nectarian
The Nectarian Period of the lunar geologic timescale runs from 3920 million years ago to 3850 million years ago. It is the period during which the Nectaris Basin and other major basins were formed by large impact events. Ejecta from Nectaris for ...
period, 3.92 to 3.85 billion years ago.
Satellite craters
By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Apianus.
See also
*
19139 Apian
19139 Apian, provisional designation ', is a bright background asteroid from the central regions of the asteroid belt, approximately 6 kilometers in diameter. It was discovered on 6 April 1989, by German astronomer Freimut Börngen at the Karl Sch ...
, asteroid
References
External links
Crater Apianus in the Gazetteer of Planetary Nomenclature of the Astrogeology Research Program of the United States Geological SurveyCrater Apianus: Lunar Map LAC-95 of the Aeronautical Chart and Information Center of the United States Air Force in the Lunar Map Catalog of the Lunar and Planetary InstituteCrater Apianus: Available Lunar Maps according to the Astrogeology Research Program of the United States Geological SurveyCrater Apianus in the Digital Lunar Orbiter Photographic Atlas of the Moon of the Lunar and Planetary Institute - Image IV-095-H3Crater Apianus in the Digital Lunar Orbiter Photographic Atlas of the Moon of the Lunar and Planetary Institute - Image IV-096-H1Crater Apianus in the Digital Lunar Orbiter Photographic Atlas of the Moon of the Lunar and Planetary Institute - Image IV-096-MCrater Apianus in the Digital Lunar Orbiter Photographic Atlas of the Moon of the Lunar and Planetary Institute - Image IV-100-H3Crater Apianus in the Digital Lunar Orbiter Photographic Atlas of the Moon of the Lunar and Planetary Institute - Image IV-101-H1
Impact craters on the Moon
Nectarian
{{Craters on the Moon: A–B