Lat: 82.7°N, Long: 79.6°W, Diam: 58 km, Depth: 2.98 km, Rükl: 3, Nectarian
LO-IV-190H Because of its postion near the Moon's north pole, the sun angle at Sylvester is always low, and most of the crater's floor is usually in shadow.
LPOD Photo Gallery Lunar Orbiter Images
(LAC zone 1C2) USGS Digital Atlas PDF
Depth data from Kurt Fisher database
- Westfall, 2000: 2.98 km
- Cherrington, 1969: 2.71 km
- James Joseph; British mathematician (1814-1897).
- Name given by Arthur and Whitaker in Rectified Lunar Atlas (1963) and approved by IAU in 1964 (Whitaker, 1999, p. 234).
- The pronounced valley south of Sylvester and east of Froelich is unofficially called Vallis Sylvester by D. Caes. See LAC 9 in the Clementine Atlas (the upper right corner of LAC 9). Note that this valley is NOT Catena Sylvester!
Light on the permanently shadowed inner slopes and bulbous floor of Sylvester N (post number 979).