There's something weird about crater Young in Vallis Rheita.
On page 234 of Harold Hill's wonderful book A PORTFOLIO OF LUNAR DRAWINGS (Cambridge, 1991), there's:
-"A number of observers have claimed in the past that the inner slopes of the formation Young have a greenish, almost translucent cast or sheen when seen at the evening terminator".
Danny Caes,
Public Observatory of Ghent - Belgium.
