Sosigenes
Sosigenes - and cluster of IMPs on the W. part of its floor
|
Lat: 8.7°N, Long: 17.6°E, Diam: 17 km, Depth: 1.5 km, Rükl: 35 |
LO-IV-090H 4-km Sosigenes B is to the southwest of the main crater.
Images
LPOD Photo Gallery Lunar Orbiter Images Apollo Images
Maps
(LAC zone 60A3) LAC map Geologic map LM map
Description
Description: Elger
(IAU Directions) SOSIGENES.--A small circular ring-plain, 14 miles in diameter, with narrow walls, a central mountain, and a minute crater outside the wall on the W.; situated on the W. side of the Mare Tranquillitatis, E. of Julius Caesar. There is another crater, about half its diameter, on the S., connected with it by a low mound. This has a still smaller crater on the E. of it.
Description: Wikipedia
Additional Information
Depth data from Kurt Fisher database
- Pike, 1976: 1.5 km
- Arthur, 1974: 1.73 km
- Westfall, 2000: 1.5 km
- Viscardy, 1985: 1.7 km
- From the shadows in LO-IV-090H, Sosigenes is 1700-1800 m deep. - Jim Mosher
Irregular Mare Patches (IMPs) on the western part of the floor of Sosigenes
On the whole of the moon's surface, this cluster of IMPs is perhaps the most easy one to detect, because it's on the floor of the well-observable crater Sosigenes. You don't really need the LAT and LON coordinates system to find these IMPs. Sosigenes is (or should be) a very easy target for everyone who's exploring the LROC ACT-REACT Quick Map. Strange to say, this cluster of IMPs is catalogued as "Unnamed" in the general list of 70 IMP locations. Well, let's call it Sosigenes...
- DannyCaes Jul 3, 2017
Nomenclature
- Sosigenes of Alexandria (unkn-fl. 46 B.C.) was a Greek astronomer and chronologist. He was named by Pliny the Elder as the astronomer consulted by Julius Caesar for the design of the Julian calendar.
- According to Whitaker (p. 215) the "Sosigenes" on Riccioli's map was the modern Julius Caesar. It is not clear from his book who introduced the use of the name at its modern location.
- A formation in the neighbourhood of Sosigenes was called Sosigenes Bucht ("Sosigenes Bay") by Krieger and Konig (Whitaker, p. 226). This name (Sosigenes Bucht) was not accepted by the I.A.U.
LPOD Articles
Bibliography
A Portfolio of Lunar Drawings (Harold Hill), page 9 (the Sosigenes rille system).
"Sosigenes Bucht": MAPPING AND NAMING THE MOON, E.A. Whitaker, page 226, Appendix N.
