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Ursa Astronomical Association
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Ursa Astronomical Association

Sun - 27.6.2020 at 08.57 Hyvinkää Observation number 91450

Visibility IV / V

Timo Inkinen, Ursa (Etelä-Suomi)

In turn, a slightly more modest protuberance in Ha light from the edge of the Sun. This is described with a TMB 152/1200 lens tube and Daystar Quark Combo + Baader D-ERF filters (@ 4800mm FL). The camera was an ASI 183MM Pro and the video was stacked with AutoStakkert 3 and the final image processed in Photoshop. From this web image, one can guess what a smaller protuberance peeking from the edge is now in question. (In practice, with the telescope I use, there are always protuberances of some size in the Sun to watch / describe.)

Additional information
  • Observation target
    • Sun
    • Näyttävä
  • Seeing
    • Good
Technical information

A parallel video of the SER 1: 1 aspect ratio of the described area can now be downloaded for about a week here from my public Dropbox folder, if anyone is interested in what kind of raw data these images are generated from: videos open at least with that AutoStakkert program or SER Player:

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