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Contact information

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

Ursa Astronomical Association

Sun - 25.7.2016 at 16.00 Espoo Observation number 54973

Visibility II / V


Mosaic practice. There was a thin cloud in the sky all the time, which softened some of the sub-squares of the mosaic. There are not very many spots in the sun at the moment. Better image processors would probably have gotten a couple of gradients out, but I myself gave up on this.


Additional information
  • Observation target
    • Sun
    • Heikosti näkyvä
Technical information

80/480 apo, D-ERF, Quark, shortener and asi178mm. The mosaic is assembled from 13 videos and the image shown here is about 50% of the original size. Exposure time 3.5 ms, 1500 frames per video, of which 3-6% are stacked. AutoStakkert, ImPPG, Photoshop.

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