Richard Hill

Ever since I had my first decent telescope, one of the ubiquitous 2.4” Japanese refractors of the 1960s, I was fascinated with looking at the cusps of the crescent moon, what my father liked to call “a fingernail clipping” moon. I particularly liked the d... See more

I can’t pass over this isthmus of craters between Mare Fecunditatis on the east (right) and Mare Nectaris on the west, when they are visible. The largest crater just above center is Gutenberg (77km diameter) with an equally interesting crater formation to... See more

Richard Hill 2025-12-05 08:49:43 When I write, I like to have a podcast playing in the background. Sometimes it’s one of the railway shows — Rail Technology Magazine has a great one — other times it’s environmental voices talking about climate change and ... See more

A dramatic scene as the sun rises on the huge crater Clavius (231km diameter) left of center still deep in shadow. The two circles inside Clavius are Clavius D (28km) and left of it Clavius C (21km). This view of them as just rings is very short lived. Be... See more