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BAA Images Alun Halsey

Observation by Alun Halsey: Full Disk and AR 2817

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Alun Halsey


Alun Halsey


2021 Apr 20 - 10:10


2021 Apr 23 - 14:07


The Sun

  • 80mm f/7 refractor/Lunt 50THa pressure tune module
  • 72ED refractor,Solarmax 40/BF10 filter set
  • QHY5III 178
  • Ioptron Minitower Pro alt az mount

Berkshire UK

Target name



Full Disk and AR 2817

About this image

Lunt pressure tune etalon removed from 50THa and attached with relevant adapters to focuser of 80mm f/7 achromat. Full aperture ERF (Lunt) in place. SER's of various amount of frames captured in Firecapture,stacked in Autostakkert 3 and processed in Astrosurface and PS CS2 adding false colours. All times are UTC. 

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