IWLOP #091 - Stadius

Ghost crater, subtle circular depression edged with incomplete low walls and crater pits. Stadius is slightly larger but much less prominent feature than nearby Eratosthenes. It is located roughly one crater diameter to the SW of Eratosthenes.

Location: 10.5 N 13.7 W    Origin: Impact     Size: 69 km     Rukl: 32     Type: Compact Crater (CC)

Objects: Stadius, Eratosthenes, Mare insular
Others Identified: Montes Apenninus, Sinus Aestuum

Location: Home
Date: 2021-04-20
Time: 8:37 PM ADT
Equipment: 10” Meade SCT, 4.7 mm eyepiece + x2 Barlow
Magnification: x1060
Seeing: Good (3)
Transparency: Very Good (4)

R1: Stadius appears as a ghost crater. The tallest part of Stadius' crater walls is in the NE and SW. The NW and SE crater walls don't appear - flooding? disintegration? or both? There were hints of numerous very small craters on its floor, but I wasn't sure.
R2: Two dark patches were located on the floor of Mare Insularum to this crater's south.
R3: The prominent mountain massif between Stadius and Eratosthenes is HUGE compared to Stadius but is comparable in height to Eratosthenes. It was also very bright - you couldn't miss it!




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