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Sun's Circular Filament

This is image was captured using a 60mm Hydrogen-alpha (Hα) telescope. It is showing the Sun's chromosphere.

There were very interesting features on August 18, 2022. At the top is a filament in the shape of a circle. It is also raised quite a distance above the chromosphere. Going down to the right thee is a very large and thick filament. Just to the left of that filament is a sunspot (AR3081) surrounded by a plage.

 

Capture location: Elkridge, Maryland USA

Telescope: Lunt LS60T Hα

Double Stack: LS50F Hα

Camera: ZWO ASI178MM

Processing software:

Autostakkert, RegiStax6, Lightroom Classic, Photo Shop

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Uploaded on August 20, 2022