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Ursa Astronomical Association
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Ursa Astronomical Association

Sun - 16.3.2023 at 11.30 Nummenmäki, Turku Observation number 113476

Visibility V / V

Petrus Kurppa, Turun Ursa

The sun has been spoiling northern lights enthusiasts for quite some time now, so I already had time to guess a little whether sun photographers would be able to enjoy the increased activity equally. Yes, it felt like being invited by the cake table, when I got to see the sun's surface and eruptions at the Quark Chromosphere after a long time! Compared to Lunt's solar tubes, to my own eyes, this brings out the sun in all its beauty better. The large eruption can still be seen in the sun, and by making an animation you can nicely see its movement in different directions. Several filaments on the surface, where even they were enough to admire in terms of the richness of the form.

The image is a partial negative, from which the surface was turned into a negative, but the space and edge discharge as positive.

Added short animation. The flat did not burn, which is the reason for the reflection in the background of the eruption.

Addendum 2: a colored version of the timelapse.

Additional information
  • Observation target
    • Sun
Technical information

TS Optics 80ED f/7, Optolong IR UV 2" cut filter, Daystar SolarScout Quark Chromosphere (modded standard), Rowan Astronomy Tilt adapter, ZWO ASI174MM.

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