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Ursa Astronomical Association

Mars - 10.9.2020 at 23.57 Hyvinkää Observation number 93587

Visibility III / V

Timo Inkinen, Ursa (Etelä-Suomi)

Mars on September 10, 2020 photographed as a shift from the early night, when new surface shapes stood out from the surface for me. I inadvertently took a picture without gear extensions and no IR-Pass filter. So here is the "organic image" of the TMB 152/1200 LZOS APO lens tube without the usual steroids associated with Mars imaging :-D

Either the seeing happened to be momentarily better in the early evening or the short shooting focal length of 1200 mm produced a rather sharp looking mark. I also tried to shoot Mars about an hour later via a 2.5x PowerMate (3000mm focal length), but at that time seeing was weaker than this moment of shooting. So now the rather unlikely shooting time and settings made the best final shot tonight. So Mars surprised the graph!

Additional information
  • Observation target
    • Mars
    • Keskitaso
  • Seeing
    • Good
Technical information

Captured with ASI183MM Pro camera, but now with 800x600 pixel ROI and 4ms shutter speed with Astrodo luminance filter. Drizzle 1.5x in AS! 3 and PhotoShop helped stack 200/10000 video frames and color the final image.

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