Sosigenes (crater) explained

Coordinates:	8.7°N 17.6°W
Diameter:	17 km
Depth:	1.7 km
Colong:	342
Eponym:	Sosigenes of Alexandria

Sosigenes is a lunar impact crater on the west edge of Mare Tranquillitatis. Its diameter is 17 km. It was named after ancient Greek astronomer Sosigenes of Alexandria. It lies to the east of the large walled plain Julius Caesar. The crater rim has a high albedo, making it relatively bright. It has a small central rise at the midpoint of the floor.

To the east on the mare is a formation of parallel rilles designated the Rimae Sosigenes. These follow a course to the north, and have a length of about 150 kilometers. The small, bowl-shaped crater Sosignes A lies across one of these rilles.

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 Sosigenes.

Sosigenes	Latitude	Longitude	Diameter
A	7.8° N	18.5° E	12 km
B	8.3° N	17.2° E	4 km
C	7.2° N	18.9° E	3 km

References

• Book: Andersson . L. E. . Whitaker . E. A. . Ewen Whitaker . 1982 . NASA Catalogue of Lunar Nomenclature . NASA RP-1097 .
• Book: Bussey . B. . Ben Bussey . Spudis . P. . Paul Spudis . 2004 . The Clementine Atlas of the Moon . . New York . 978-0-521-81528-4 .
• Book: Cocks . Elijah E. . Cocks . Josiah C. . 1995 . Who's Who on the Moon: A Biographical Dictionary of Lunar Nomenclature . Tudor Publishers . 978-0-936389-27-1 .
• Web site: McDowell . Jonathan . July 15, 2007 . Lunar Nomenclature . . 2007-10-24 .
• Menzel. D. H.. Minnaert. M.. Levin. B.. Dollfus. A.. Bell. B.. Report on Lunar Nomenclature by the Working Group of Commission 17 of the IAU. 10.1007/BF00171763. Space Science Reviews. 12. 2. 136–186. 1971. 1971SSRv...12..136M. 122125855.
• Book: Moore , Patrick . Patrick Moore

. Patrick Moore . 2001 . On the Moon . . 978-0-304-35469-6 .

• Book: Price , Fred W. . 1988 . The Moon Observer's Handbook . Cambridge University Press . 978-0-521-33500-3 .
• Book: Rükl , Antonín . Antonín Rükl

. Antonín Rükl . 1990 . Atlas of the Moon . . 978-0-913135-17-4 .

• Book: Webb , Rev. T. W. . Thomas William Webb

. Thomas William Webb . 1962 . Celestial Objects for Common Telescopes . 6th revised . Dover . 978-0-486-20917-3 .

• Book: Whitaker , Ewen A. . Ewen Whitaker

. Ewen Whitaker . 1999 . Mapping and Naming the Moon . Cambridge University Press . 978-0-521-62248-6 .

• Book: Wlasuk , Peter T. . 2000 . Observing the Moon . Springer . 978-1-85233-193-1 .

External links

• at The Moon Wiki
• Rimae Sosigenes at The Moon Wiki - on its rille
• LTO-42D4 Sulpicius Gallus - L&PI topographic map
• Is the Moons' Fault - the rille Rimae Sosigenes not mentioned in that article
• Web site: Wood . Chuck . September 23, 2004 . Lunar Crater Types . Lunar Photo of the Day . 2017-10-06 . 2016-03-10 . https://web.archive.org/web/20160310044253/http://www.lpod.org/archive/LPOD-2004-09-23.htm . dead . - one of the craters depicts Sosigenes
• Web site: Wood . Chuck . April 26, 2006 . Dead Romans. Lunar Photo of the Day . 2006-07-12 . dead. https://web.archive.org/web/20110614233616/http://www.lpod.org/?m=20060426. June 14, 2011.