Southern section of the Six day old Waxing Crescent Moon taken April 14th, 2024 (DWS 23)

Southern section of the Six day old Waxing Crescent Moon taken April 14th, 2024

Acquisition type: Lucky imaging

One of the interesting features in this image is Jansen crater with Rimae Janssen rille shown towards the right and slightly above center. The seeing on the 14th of April was better than average. The smallest craters/craterlets that are resolved are in the area of 1 km.

For more information, the following is courtesy of Wikipedia:

From Wikipedia, the free encyclopedia
Not to be confused with Jansen (crater).
This article is about the crater on the Moon. For the Martian crater, see Janssen (Martian crater).Janssen

Lunar Reconnaissance Orbiter imageCoordinates

44.96°S 40.82°E Diameter201 kmDepth2.9 kmColongitude320° at sunriseEponym Pierre J. C. Janssen

Janssen at center, near the terminator as viewed from EarthJanssen is an ancient impact crater located in the highland region near the southeastern lunar limb. The entire structure has been heavily worn and is marked by many lesser crater impacts. The outer wall is breached in multiple locations, but the outline of the crater rim can still be observed. The wall forms a distinctive hexagonal shape upon the rugged lunar surface, with a slight curvature at the vertices.

Satellite craters of JanssenThe crater is named after French astronomer Pierre Jules César Janssen.[1]The prominent crater Fabricius lies entirely within the outer wall, in the northeast quadrant of the floor. A number of other lesser, but still notable craters mark the crater floor. Connected to the northeast rim is Metius, and to the north is the heavily worn Brenner. Southeast of Janssen are the co-joined craters Steinheil and Watt. Astride the southwest wall is the smaller Lockyer. Further to the east, although appearing nearby due to elongation, is the huge Vallis Rheita.In the southern two-thirds of Janssen can be discerned the remains of a large, concentric crater, the wall of which is overlaid by Fabricius. The floor of this inner depression contains a rille system named the Rimae Janssen. The rille curves from the rim of Fabricius to the southeast of the outer wall of Janssen, extending for a distance of up to 140 kilometers.

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