Post by mikeyp on Oct 29, 2017 20:23:24 GMT
A 68% lit Moon gave the opportunity to see this landmark in Mare Nubium. 
Rupes Recta (official name) is 68 miles long and 1.5 miles wide so the 8" Dob at x80 was up to the task.
It is black at 1st quarter, or the day after, caused by shadows but at last quarter it is white as a result of facing the sun.
Patrick Moore used to delight to say "it is not a wall, neither is it straight."
Rupes Recta (official name) is 68 miles long and 1.5 miles wide so the 8" Dob at x80 was up to the task.
It is black at 1st quarter, or the day after, caused by shadows but at last quarter it is white as a result of facing the sun.
Patrick Moore used to delight to say "it is not a wall, neither is it straight."