Lat: 80.8°N, Long: 10.1°E, Diam: 46 km, Depth: 1.93 km, Rükl: 4, Nectarian
LPOD Photo Gallery Lunar Orbiter Images
(LAC zone 1D4) USGS Digital Atlas PDF
(IAU Directions) MAIN.--A very similar formation, on the N. of Challis, much too near the limb to be well observed.
Depth data from Kurt Fisher database
- Westfall, 2000: 1.93 km
The Reverend Robert Main (July 12, 1808 – May 9, 1878) was a British astronomer. He served for twenty-five years (1835-60) as First Assistant at the Royal Greenwich Observatory, and published numerous articles, particularly on stellar and planetary motion, stellar parallax, and the dimensions and shapes of the planets.