Observation by Alun Halsey: Spectroheliogram in Halpha 29th April 20...

Uploaded by

Alun Halsey

Observer

Alun Halsey

Observed

2023 Apr 29 - 13:09

Uploaded

2023 Apr 30 - 16:15

Objects

The Sun

Equipment

SW Evostar 72ED + full aperture Hoya ND 16 filter
Sol'Ex SHG/QHY5III 178M + addition of 7nm Halpha filter
CEM60

Location

Reading Berkshire UK

Target name

The Sun

Title

Spectroheliogram in Halpha 29th April 2023

About this image

Single image spectroheliogram with minimal processing carried out in Astrosurface and PS CS2. 16x sidereal speed used to force the scan,Baader 7nm Halpha filter attached to nosepiece of Sol'Ex to reduce parasitic stray light.

Files associated with this observation

Halpha-shg_230429.jpg (549.5 kB)

Like this image

Les Dickens, Ella Bryant, Gerard Cauchi, Callum Potter, Mike Harlow, Jeremy Shears

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.

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.