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Oblique view of Rupes Recta (left), Birt (center), and Rima Birt (right), from Apollo 16 Taken with Olympus digital camera using 4.5" telescope. Since this is a telescopic view, this image is inverted.
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.
To the west of this escarpment is the crater Birt , which is about 17 km in diameter. Also to the west is the Rima Birt rille . At the southern end is a group of hills often called the "Stag's-Horn Mountains", although this name is not officially recognized by the IAU .
To the northeast is the crater Alpetragius , and to the east is Thebit .
References [ edit ]
^ North, Gerald (2007). Observing the moon: the modern astronomer's guide . Cambridge University Press. p. 331. ISBN 978-0-521-87407-6
^ Grego, Peter (2005). The moon and how to observe it . Birkhäuser. p. 32. ISBN 978-1-85233-748-3
^ a b Wood, Charles A. "The Lunar 100" . Sky & Telescope . Sky Publishing. p. 2 . Retrieved Feb 2, 2012 .
^ Nathan, Steve A. "Lunar Club Observing List" . Astronomical League. Retrieved Feb 2, 2012 .
External links [ edit ]
Rupes Recta at Wikimedia Commons
"Rupes Recta" , Lunar Reconnaissance Orbiter , NASA, February 9, 2011, retrieved 2012-03-27
Wood, Chuck (January 11, 2004). "Straight Wall" . Lunar Photo of the Day.
Wood, Chuck (February 22, 2004). "More Discoveries Near the Straight Wall" . Lunar Photo of the Day.
Wood, Chuck (July 30, 2004). "Obliquely Viewed Fault" . Lunar Photo of the Day.
Wood, Chuck (April 13, 2005). "Righteous Recti" . Lunar Photo of the Day.
Wood, Chuck (November 13, 2006). "Nokia Moon" . Lunar Photo of the Day. Archived from the original on June 14, 2011.
Wood, Chuck (February 13, 2007). "New Observations of a Well-Known Area" . Lunar Photo of the Day. Archived from the original on June 14, 2011.
Wood, Chuck (February 17, 2008). "Cornucopia of Details" . Lunar Photo of the Day.
Wood, Chuck (March 7, 2009). "The Beetle" . Lunar Photo of the Day.
Wood, Chuck (August 20, 2009). "Succession" . Lunar Photo of the Day.
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● T h i s p a g e w a s l a s t e d i t e d o n 6 A p r i l 2 0 2 4 , a t 0 5 : 2 6 ( U T C ) . ● T e x t i s a v a i l a b l e u n d e r t h e C r e a t i v e C o m m o n s A t t r i b u t i o n - S h a r e A l i k e L i c e n s e 4 . 0 ;
a d d i t i o n a l t e r m s m a y a p p l y . B y u s i n g t h i s s i t e , y o u a g r e e t o t h e T e r m s o f U s e a n d P r i v a c y P o l i c y . W i k i p e d i a ® i s a r e g i s t e r e d t r a d e m a r k o f t h e W i k i m e d i a F o u n d a t i o n , I n c . , a n o n - p r o f i t o r g a n i z a t i o n . ● P r i v a c y p o l i c y ● A b o u t W i k i p e d i a ● D i s c l a i m e r s ● C o n t a c t W i k i p e d i a ● C o d e o f C o n d u c t ● D e v e l o p e r s ● S t a t i s t i c s ● C o o k i e s t a t e m e n t ● M o b i l e v i e w
Media related to Rupes Recta at Wikimedia Commons
