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Contact information

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

Ursa Astronomical Association

Sun - 22.3.2016 at 14.01 Espoo Observation number 50089

Visibility III / V

Janne Sievinen, Ursa (Helsinki)

A group of sunspots photographed through 2524 afternoon thermal ripple.

Main image directly from the primary focus of the TAL-200K telescope (1/2000 s, ISO 800), partial image through the x3 barlow lens (1/160 s, ISO800).

Both images are single exposures. Image histograms and temperature balances adjusted with Lightroom.


Additional information
  • Observation target
    • Sun
    • Keskitaso
  • Seeing
    • Mediocre
Technical information

Capture time: 22-Mar-2016 at 11:01 UTC Exposures: ISO800, 1 / 2000s (primary focus) and 1 / 160s (x3-Barlow) Equipment: Canon EOS 650D, TAL-200K Klevtsov-Cassegrain

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