The Sun (Spectroheliograph Scan)

 Download Full Resolution (2560x2560) 687KB 2,757

The Sun (Spectroheliograph Scan)

[Public Domain] 21 Feb 2025 Dylan O'Donnell
CATEGORY : Astrophotography
2,758 others viewed this post.

This image of the Sun is a little different from my others as it was captured with a spectroheliograph that “scans” across the Sun’s hydrogen-alpha spectral line in a single 20 second pass to produce an excellent image of the surface details and outer activity at the same time. It’s a first attempt so I should be able to improve this with some more learning! To see how this image was captured  see this video : https://www.youtube.com/watch?v=12i19HO1CIc

Thanks to Minh from MLAstro for letting me demo the SHG700!

~ 600 frames in 20 seconds / SHG700 + SW ED82 * 0.9 / 477mm
QHY678M
SW EQ8Rh-Pro

Animated version here :

 Download Full Resolution (2560x2560) 687KB