Wed, 09/16/2020 - 13:00
Photometry and Spectroscopy of P Cygni: Periodic Variation of the intrinsic Halpha-line flux
See:
https://www.aavso.org/apps/jaavso/article/3590/
Ernst Pollmann
Photometry and Spectroscopy of P Cygni: Periodic Variation of the intrinsic Halpha-line flux
See:
https://www.aavso.org/apps/jaavso/article/3590/
Ernst Pollmann