|120 frames at 90% best quality, Gaussian, in Registax.|
|5 frames at 100% best quality, in Registax.|
I said in another article , that the region surrounding Rupes Recta, could be a flooded crater that still preserves its vaguely circular shape after lava penetration in it . We can realize that my opinion is true, by looking at Thebit P (78 km), crater which is in the same measure flooded too that we can barely distinguish its edge .
Rupes Recta , or as it is also called " the straight wall " has a length of 110 km and reaches a height of 300 m In these images , the shadow of this wall is beautifully projected on Mare Nubium , highlighting this characteristic of the Moon hunted by many amateur observers . If the Sun would shine on the opposite side of this wall, would have been appeared as a stright white stripe as a shining sword . Anyway you look at this wall under any lighting conditions , it is a pleasure for any observer whether amateur or advanced.
This sword , viewed as a whole, is made up of several features that make it look like this . The blade of the sword is the " straight wall " after that, the the handle of the sword is made of some mountains, and a flooded crater which has left only half edge. I suspect that it is true after I have analyzed several photos of the area taken by NASA.
Captured video images : Hidden crater under Mare Nubium?
Age of the Moon: 7 days
Phase: 51% (0% = New, 100% = Full)
Distance: 384.488 km
Optics: Celestron C8-Newtonian telescope, 20 mm Plossl, 2x Barlow
Mount: CG5 (EQ5)
Camera: Sony CX130
Location: Baia Mare, Romania
Processing: Images in Registax, FastStone Image Viewer