spectro-aras.com

Here's a spectrum of the micro quasar SS 433 (mag. V=13)

This is a fabulous object with very high velocity shift (around 25% of the light speed)

The graphe show evolution from a previous spectrum taken in 2015 (with no "blue" H alpha shift...)



And an animation of a micro quasar system :

https://www.youtube.com/watch?v=6jqrZNoTIwU%203

and a picture of this system

Très intéressant comme spectre et les possibilités offertes pour suivre cette cible peut commune.