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RE: Rupes Recta
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Moon 02.07.17: Image captured with a 100mm f5 Helios refractor and Vesta pro webcam.

Capture 2017-07-02T23_14_20_Rupes Recta



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Look for the 'lunar Straight Wall' (Rupes Recta) on the 23rd August 2015

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The lunar Straight Wall (Rupes Recta) 

Capture 2015-08-06T01_21_06 


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Capture 2015-03-28T17_29_01Capture 2015-03-28T17_27_49
Date: 28.03.15 


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Capture22_11_201220_25_10rupes.jpg

Date: 22nd November, 2012



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The lunar Straight Wall is visible on the 26th August.

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The lunar Straight Wall is visible on the 7th August, 2012.



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Rupes Recta is a linear fault, or rille, on the Moon, in the southeastern part of the Mare Nubium at 22.1°S 7.8°W. 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 (after first quarter) 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.

Read more 

Rupes Recta from Alcala de Xivert

Rupes Recta- Moon -Daniel Allepuz

Rupes Recta through Lightbridge 16

Ed ~ To locate Rupes Recta look for the large craters Ptolemaeus, Alphonsus, and Arzachel on the terminator just after first quarter phase. South of Arzachel is a large flooded crater. Rupes Recta crosses this ancient crater.



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