This video shows the "pollution" of the CaH line with the H-epsilon line. It's an animation at +-3Å from the center of the CaH line. It clearly shows the filaments reappearing at 3970Å, at the position of the H-epsilon line! https://www.youtube.com/watch?v=tSuIDOAc4qU

#spectrography #solar

The web based analyzer for the spectrometer is coming together, although I still have to figure out a few things. This screencapture shows a few of the features, but nothing serious, just sliding the sliders and buttoning the buttons, then cycling through a few colors on the lamp in front of the phone.

It's still WIP but you can try it here: https://gheja.github.io/spectro-web/src/

#screenshotsaturday #spectrography #spectrograph #spectrometer #spectroscopy #spectroscope #opensource #javascript

I started to work on a mini pocket spectrograph, the 3D model will be available for download, I just need to tune a few things.

I am also working on a little web based stuff to make sense of the things seen, strictly locally in the browser, on the client side.

It's a fun random side project, though I already bought about 8 different light bulbs just to see their spectrum...

#spectrography #spectrograph #spectrometer #spectroscopy #spectroscope #printables #3dprinting #opensource #freecad

Plus de 230 spectres , 25 observateurs, cumulant un temps de pose de 255 heures, soit plus de 10 jours consécutifs. C'est l'heure du bilan de la campagne #STAROS 𝛼 Draconis qui a duré 5 mois ! http://www.astrosurf.com/topic/163887-bilan-campagne-staros-%F0%9D%9B%BC-draconis/

#spectrography #astrophysics #astronomy

Fabulous project led by Christian Buil, discover the characteristics of the versatile low-cost "Star'Ex" spectrograph, manufactured using 3D printing. #rce2022 #spectrography #astronomy #amateurastronomy #astrodon

➡️ https://youtu.be/ce1e8IKgk-4