spectro-aras.com

Hi Joan, thanks for sharing the spectrum. As far as I know the first line on the left is the Cyanogen line, the one in the center is the sodium line that the comet took from the sun because comets do not have this component. The calcium line that I have seen in all comet spectra is missing. I am not ...

Hello everyone, my contribution for this comet.
Umberto Sollecchia

Exceptional result! They all say that you are
the "King" of spectroscopes!
An affectionate greeting

Joan, give lots of compliments to your friend Antoni Jove'!
A strong hug. Umberto

Forgive me Hamish, I was wrong to attach the file. Now that's right.
Umberto

https://www.astronomerstelegram.org/?read=15910

Hi all, I post the spectral profile of the transient in question.
Umberto

Bonjour à tous, voici ma contribution. Je ne suis pas sûr des composants que j'ai transcrits.
Umberto

Bonjour à tous, la luminosité de la nova a baissé, elle est maintenant de magnitude 11, je l'ai donc observée avec le réseau 600l/mm toujours centré sur le H-alpha.
Umberto

Caramba Joan! Exceptional spectrum.
Umberto

Voici le profil du 07/06/2022 même configuration meilleure transparence du ciel.
Umberto