gamma Cas "Be stars" - 150 years after father Secchi !

I took a spectrum of gamma Cas tonight, exactly 150 years after father Secchi observed its spectrum and thus discovered those fantastic "Be stars" whose study still continues...



Here the article of the discovery and my 150th anniversary spectrum:

I also went deep tonight with long acquisition on V 335 Vul, a very peculiar but very faint and very red star - more on this in another blog!