Note on the Spectrum of α Cygni

L. H. Aller
1937 Publications of the Astronomical Society of the Pacific  
291 À3426 of [Ne v] ; and possibly À4686 of He 11. The strength of the forbidden neon lines is illustrated by the fact that the [AT in] image at 3869 A is a little stronger on the plate than the combined radiations of [0 in]. Such a spectrum is rather peculiar, even for the nebular stage of a nova. The absence of
doi:10.1086/124856 fatcat:jfauclhqdncbzjrhrgtvrt33jm