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

Ursa Astronomical Association

Sun - 11.9.2016 at 12.00 Espoo Observation number 57137

Visibility IV / V


After breakfast, I realized that the sky has been properly clear for a long time. A quick glance at Nasa’s space weather app revealed that really nice protuts are visible on the surface of the sun. Kamat bundle and field.

There was a thin cloud in the sky during the shooting, but when I grabbed 5 videos, one seemed to be more successful than the others. However, the seeing was surprisingly good at the moments when the clouds completely disappeared from the sun.

The weather was great and especially warm for September. This may be the last sunshine this season. Fortunately, there was publishable material.


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

5000 squares, best 20% stacked. Image processing with Imppg and Photoshop. In the flat video, 2000 frames, taken with out of focus. Bader D-ERF, TS 80/480 FPL53 apo, Quark, 0.5 reducer, tilt adapter and ASI 178MM.

Comments: 2 pcs
Mikko Peussa - 17.9.2016 at 15.36 Report this

Hienoa jälkeä!

Aki Karjalainen - 18.9.2016 at 20.23 Report this

Nämä Tommin aurinkokuvat ovat kyllä maagisia.

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