British Astronomical Association

Supporting amateur astronomers since 1890


Gallery

Observers

Objects

Sky map

Histogram

FAQs

Search

Observation by Alun Halsey: AR 3363 in Calcium K line 07/07/23

Uploaded by

Alun Halsey

Observer

Alun Halsey

Observed

2023 Jul 07 - 11:50

Uploaded

2023 Jul 08 - 15:09

Objects

The Sun

Equipment
  • Bresser 90mm f/10 achromat with 2x Barlow
  • filter combination of yellow filter (from Lunt B1200 Cak module) Antlia 3nm UV and IR block attached to Scopium Herschel wedge
  • QHY5III 178M
  • CEM60
Location

Reading Berkshire UK

Target name

The Sun

Title

AR 3363 in Calcium K line 07/07/23

About this image

Seeing unsteady so recorded a two thousand frame SER in Firecapture,stacked and processed in Astrosurface and Photoshop CS2.

Files associated with this observation
Like this image
Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of work by third parties is expressly forbidden without the consent of the copyright holder. By submitting images to this online gallery, you grant the BAA permission to reproduce them in any of our publications.

© British Astronomical Association 2024

Registered charity no. 210769
Registered company no. 117572

For more information including contact details, click here.

Our Terms of Use are here.

Our Privacy Policy is here.

The BAA image gallery was designed and
built by Dominic Ford.

Image gallery software © Dominic Ford 2020–2022