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Observation by Alun Halsey: Solar activity 7th May 2021

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Alun Halsey


Alun Halsey


2021 May 07 - 09:40


2021 May 08 - 21:04


The Sun

  • Lunt 50THa double stacked with Solarmax 40
  • 150mm (reduced to 100mm) PST modified refractor
  • QHY5III 178M
  • EQ6 Pro

Berkshire UK

Target name



Solar activity 7th May 2021

About this image

Lunt 50THa pressure tuned solar scope double stacked with Solarmax 40 etalon for full disk. 150mm f/8 (reduced to 100mm to bring scope to f/10) PST modified scope for image of filaprom. QHY5III 178M used on both scopes (ROI used on larger scope) SER's stacked in Autostakkert 3 and processed in Astrosurface and PS CS2 adding false colour.

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