Wargentin - Lava Filled Crater

The unusual feature, Wargentin is a lava filled impact crater on the south-west limb of the Moon. It is filled with basaltic lava, forming a raised plateau. It can only be seen well every second lunation from any particular location on Earth due to the half day in the moon's 29.5 day synodic cycle.

The enlarged, inset view has been scaled vertically to flatten the perspective distortion caused by the extreme curve of the lunar surface close to its limb. Careful examination of the shadows around Wargentin and the large surrounding craters clearly show it's "inverted" appearance.

You can read more about this unusual crater, here:

https://en.wikipedia.org/wiki/Wargentin_(crater)

Date: 2026 01 01
Time: 19:07:22 UTC
Altitude: 44° 47'
Distance: 355 860 km
Phase: 96%

Exposure: f/5.9, 1/160s, ISO-100
Focal Length: 1200 mm

Nikon D800
Skywatcher 200P

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GIMP: Adjust levels, colour balance, sharpen, stretch inset image to flatten perspective, assemble final collage and annotate.