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Rupes Recta, 


            Jonas Aliotti Jr

Rupes Recta

Technical card

Imaging telescope or lens:Refrator Skywatcher 90mm Az3

Imaging camera:ZWO ASI120MC


Resolution: 838x568

Date:April 15, 2016

Time: 21:00


Rupes Recta is a linear fault, or rille, on the Moon, in the southeastern part of the Mare Nubium.
The name is latin for "Straight Fault", although it is more commonly called the Straight Wall. This is the most well-known escarpment on the Moon, and is a popular target for amateur astronomers.

When the sun illuminates the feature at an oblique angle at about day 8 of the Moon's orbit, the Rupes Recta casts a wide shadow that gives it the appearance of a steep cliff. The fault has a length of 110 km, a typical width of 2–3 km, and a height of 240–300 m. Thus although it appears to be a vertical cliff in the lunar surface, in actuality the grade of the slope is relatively shallow.



Jonas Aliotti Jr
License: None (All rights reserved)


Rupes Recta, 


            Jonas Aliotti Jr