The Moon - Craters Messier and Messier A - 2020-09-05 0825 UTC
This pair of craters, Messier (right) and Messier A (left), are unique in their noticeably elongated shapes that are caused by the low impact angle of an impacting body that approached from the east (from the right). After creating the Messier crater, the impacting body could have rebounded and formed Messier A. A nearly linear ray of impact ejecta extends westward across the floor of Mare Fecunditatis. A series of dorsa can be seen crossing the rays at a nearly perpendicular angle.
Rima Messier can be seen extending downward toward the southeast near the top center of the image.
Meade LX850 (12" f/16), ZWO ASI290MM
Autostakkert! (stacking - best 10% of 3,000 frames)
Registax (sharpening)
Photoshop (final processing)
The Moon - Craters Messier and Messier A - 2020-09-05 0825 UTC
This pair of craters, Messier (right) and Messier A (left), are unique in their noticeably elongated shapes that are caused by the low impact angle of an impacting body that approached from the east (from the right). After creating the Messier crater, the impacting body could have rebounded and formed Messier A. A nearly linear ray of impact ejecta extends westward across the floor of Mare Fecunditatis. A series of dorsa can be seen crossing the rays at a nearly perpendicular angle.
Rima Messier can be seen extending downward toward the southeast near the top center of the image.
Meade LX850 (12" f/16), ZWO ASI290MM
Autostakkert! (stacking - best 10% of 3,000 frames)
Registax (sharpening)
Photoshop (final processing)