May 7, 2009
A Rille That Doesn't Know What To Do with Itself
image by Alex Sanz, Ayllón, Spain
Posidonius has one of the weirdest rilles on the Moon. Not the linear ones on the older tilted plateau, but the super sinuous one that starts at the northern (upper part) rim and hugs it until it strikes off across a lava plain. And then after following a long ridge (part of the subsided terraces that had been uplifted?) bends sharply towards the western rim. It stays a few kilometers from the rim and meanders to the north until it reaches the low spot - a real gap? - in the rim and stops. A Lunar Orbiter IV Chuck Wood
Technical Details
2 May 2009. 20:03 UT. SCT 11" f/30 + DMK 31AU03 camera. Processing: Registax5, MaxIm and PS CS2
Related Links
Rükl plate 14
Alex's website
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