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Ursa Astronomical Association

Sun - 8.5.2023 at 19.50 Ulvila Observation number 115907

Visibility III / V

Vesa Puistovaara, Porin Karhunvartijat

For the first time, I was able to capture the Sun's flares both against the surface and from the periphery at the same time. Will it really be a success, however, because my solar photography only started a few years ago, and nothing worth mentioning has been visible until now - perhaps better now...

However, I was left wondering about the meaning of the name protuberance . Is it perhaps an old-fashioned, late designation? Would the goal be to clearly distinguish the difference, that it would be either a prominence (outer edge discharge) or a filament (discharge seen against the Sun)??

However, there were "prototypes" here and there, and I really haven't been able to make such a versatile picture from one video before.

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

Telescope: Lunt LS60T

Camera: ASI-120MM

Focal reducer: unknown (most likely an inverted Barlow lens)

Image processing: Autostakkert and GIMP

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