What is the real nature of a landform on the Moon? Recently, LPOD showed two high resolution Apollo 17 Metric Camera images of a peculiar hill, Mount Maraldi, in Sinus Amoris. Now, K.C. Pau has captured a telescopic view that offers a different impression. On the Metric images Mons Maraldi appears as a flat-topped, relatively steep-sided, roughly circular peak. KC’s image, with opposite illumination, shows a less unique hill with more gentle slopes and a fresh-looking crater that is hardly there in the Apollo images. The crater is so conspicuous in the telescopic view that I wondered if it had formed since Apollo times! But looking carefully at the right image of the Metric pair I could recognize the crater, although it was less obvious. In the Metric view Mons Maraldi looks strange, and I speculated in the earlier LPOD that it was probably a volcanic dome of a type of volcanic rock not sampled by Apollo astronauts. Looking at today’s image alone I would probably dismiss the mons as an isolated piece of highlands of no particular interest. So which is it?
12 August 2006. 10″ reflector with 20mm eyepiece projection with Philips Toucam Pro.
Rükl sheet 25
Yesterday's LPOD: A Crater of Multiple Strangenesses
Tomorrow's LPOD: Better Than Orbiter