› Forums › Variable Stars › Nova Vul 2021 › spectrum evolution
25 July 2021 at 8:50 pm
#584514
![](https://britastro.org/wp-content/uploads/2016/11/picture-146-1478110706-80x80.jpg)
Participant
There has been significant evolution in the spectrum, the He I N II C II lines being replaced by Fe II lines as the classification Atel suggested might happen
Cheers
Robin