: See this thread for background on this project: Moon Zoo ChallengeLocation: Site:
Small ray crater NE of Reiner Gamma: Marius Hills Original LROC Image centre at 57.5W, 7.9N.Images: M111972680LEDiscovery:
Anthony Cook (April 2010)Description:
This appears to be a flat featureless circular area at the floor of a boulder filled bright ray crater.Interest:
Why have the numerous boulders within this crater avoided filling the centre of this crater? Why is the central area so featureless – presumably it is younger than the main crater? Or is it that the solar altitude of 56° is preventing us from seeing craterlets on the floor of the flat patch. Is this central patch the reverse of a central peak, perhaps a central dimple and was filled with impact melt? Please look out for similar examples elsewhere on the Moon.
Small ray crater NE of Reiner Gamma
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Closeup of ray crater centre
If you find something similar to the above please post it in this thread.
Don't forget a picture, the strip reference (LROC / NAC reference) and the approximate latitude and longitude.