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Ursa Astronomical Association
Kopernikuksentie 1
00130 Helsinki

Ursa Astronomical Association

Promontorum Archerusia and Rima Ariadaeus - 28.3.2023 at 21.27 Vantaa, Pähkinärinne Observation number 113863

Visibility V / V

Paula Wirtanen, Ursa (Helsinki)

It was great to finally be able to explore the Moon in a sane atmosphere after a long time. The phase of the moon was a little less than half.

The picture shows the surroundings of the Archerusian peninsula (Promontorum Archerusia).

The conditions brought out both Julius Caesar and also the Rima Ariadaeus to the south of it stood out very clearly in the dark. Right at the terminator, Agrippa and Godin's base were still partially in shadow, and especially the Tempel next to Agrippa stood out in exceptional detail, as did the lava-based Lade.

I would have liked to see maybe more of the Cayley Plateau, but the photo is about the visual equivalent. The Cayley plateau is south of the Ariadaeus ridge in the area of the Cayley and Whewell craters. The area is exceptionally flat and is separated only by individual small craters.

#Lunar100: 029 Rima Ariadaeus
#Lunar100: 050 Cayley Plateau

Additional information
  • Observation target
    • Moon surface feature
  • Name of the observation target
    • Promontorum Archerusia ja Rima Ariadaeus
  • Seeing
    • Good
Technical information

Sky-Watcher Skymax-127 (M127/1500), 10 mm. Photo A stack of a few photos processed with Affinity Photo.

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