Observation by James Weightman: Sun: Balmer descent

Uploaded by

James Weightman

Observer

James Weightman

Observed

2026 May 25 - 09:00

Uploaded

2026 May 25 - 17:51

Objects

The Sun

Equipment

MLAstro SHG 700; Televue Pronto refractor; ZWO ASI178MM

Location

Cirencester, Glos, UK

Target name

Sun

Title

Sun: Balmer descent

About this image

Further explorations with spectroheliograph. It seems that progression through the hydrogen Balmer series peers deeper onto the chromosphere.

Initially with Alpha prominences/filaments together with other bright areas stand out but these fade and sunspots in the photosphere begin to emerge.

Files associated with this observation

sunh20260525jw.jpg (1.1 MB)

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.

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.