Another Lunar X!
Taken by James Roger Samworth on July 25, 2019 @
Nailstone, Nuneaton, UK
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Camera Used: Unavailable Unavailable
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Date Taken: 2019:07:25 08:27:48
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Details:
There are probably many "clair-obscur" effects on the Moon as the lighting changes dramatically from day to day. The Lunar "X" and "V" being two well-known examples. A few days ago, in the early hours of the morning, I couldn't sleep. Looking out of the window, there was the Moon at almost an exact last quarter phase. I thought I would use the "Window-sill Observatory" to try to image Rupes Recta (the Straight Wall) illuminated from the "other side" so that it appears as a bright line rather than its usual dark one. Having done this, and studying the detail images, a little north of Rupes Recta is the crater Lalande, and adjacent to it was another lunar "X"!
Needless to say, these lighting effects are of no scientific interest whatsoever, but interesting and distracting nevertheless.
80mm f/5 Skywatcher ST80
+ 2X X2 barlows
+ Mikrokular full HD camera
Photographer's website:
https://roslistonastronomy.uk/category/contributor/roger-samworth
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