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Skywarden,
Ursa Astronomical Association
Kopernikuksentie 1
00130 Helsinki
taivaanvahti(at)ursa.fi

Ursa Astronomical Association

Aristarchus Plateau - 14.1.2022 at 22.04 Vantaa, Pähkinärinne Observation number 103869

Visibility IV / V

Paula Wirtanen, Ursa (Helsinki)

Before the cessation of the lunar observations, it was still necessary to outline the plateau of Aristarchus, half on the light side, with a terminator. I digested a photograph of the area, which, with stacking and a little sharpening, became more or less viewable. With regard to the drawing, the fingers did not really bend to a decent result, ie it remained mainly an attempt to draw.

However: The Aristarchus Plateau (officially known as the Aristarchus Plateau) stood out clearly in a form resembling a peculiarly curved rectangle, and the comi-dimensional impression was clearly discernible.

In Drawing A, Aristarchus (L11), H Herodotus, and V is Vallis Schröteri (L17). Vallis Schröteri stood out very clearly from the split base with a strong shadow. Between Herodotus and Aristarchus. The Väisälä crater stood out as a bright spot.

In the photograph, the air directions are reversed in the correct direction, as shown in the drawing through the angular prism. What was so bad about the drawing is that instead of the usual scan, I now only publish it as a simple photo directly from the observation form.

#Lunar100: 011 #Lunar100: 017 #Lunar100: 022


Additional information
  • Observation target
    • Moon surface feature
  • Name of the observation target
    • Aristarchus Plateau
  • Seeing
    • Good
Technical information

Sky-Watcher Skymax-127 (M127 / 1500), SP 25 mm (60x) and SP 10 mm (150x)

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