Cédric Champeau 🔭

@[email protected]
99 Followers
35 Following
353 Posts
I am an amateur astronomer doing #astrophotography from his backyards in France.
You can also follow me on my more generic account @melix.
PronounsHe/Him
Astrobinhttps://www.astrobin.com/users/melix/
Bloghttps://melix.github.io/blog/
Cédric Champeau 🔭May 19, 2025
In this blog post, I describe how I detected a potential Ellerman Bomb, and how I implemented an algorithm in #JSolEx to detect these: https://melix.github.io/blog/2025/05-19-jsolex-3-2-0.html
Cédric Champeau's blog: Ellerman Bombs Detection with JSol’Ex 3.2

Cédric Champeau 🔭May 11, 2025
Nid de poule d'eau, autour de la mare de mon terrain.
Cédric Champeau 🔭May 6, 2025
Wondering how large is AR4079? On this image I have added the Earth as a comparison point. It's HUGE. The image was captured with my SHG under very bad seeing and turbulence, so I'm eager to see what I can get under better conditions!
Cédric Champeau 🔭May 4, 2025

The coma cluster (Abell 1656). There are more than a thousand galaxies visible in this image!

https://app.astrobin.com/i/tx574d

#astrophotography #galaxies

Abell 1656 - The Coma Cluster - AstroBin

An image on AstroBin.

Cédric Champeau 🔭May 2, 2025

I have released JSol'Ex 3.1.0, with a long awaited (experimental) feature: jagged edges correction!

Learn more at https://melix.github.io/blog/2025/05-02-jsolex-3-1-0.html

#astronomy #solar

Cédric Champeau's blog: Jagged Edges Correction with JSol’Ex 3.1

Cédric Champeau 🔭Apr 16, 2025
Image in CaH captured at lunch break from my backyards, between clouds and trees. Stack of 10 images selected from a set of 20 (most of them had clouds). Stacked and processed with #JSolEx 3.0.2. The clear disk version is off-band by 1 Å.
Cédric Champeau 🔭Apr 11, 2025

A Calcium H image of the sun, shot with an SHG700, a 560mm refractor, stacked and processed using #JSolEx.

Shows one of the longest filaments I have ever seen!

Cédric Champeau 🔭Mar 29, 2025

Partial Solar Eclipse of March 29, 2025, from France.
Using a SHG700 and processed with my own software, JSol'Ex !

Details at https://melix.github.io/blog/2025/03-30-partial-eclipse.html

See the animation at https://www.youtube.com/watch?v=1C8CCPQnedM

#eclipse #solar

Cédric Champeau's blog: Partial Eclipse of March 29, 2025

Cédric Champeau 🔭Mar 15, 2025
Sun, Helium D3, captured today with my SHG 700, stacked and processed using #JSolEx
Cédric Champeau 🔭Mar 7, 2025

5 days of animation of the sun. Captured with MLAstro SHG 700 and processed with JSol'Ex. Images were roughly taken 24 hours apart (+= 2 hours), depending on the weather conditions.

#astrophotography #spectroheliograph