Study of nova shells .2. FH Serentis 1970 and QU Vulpeculae 1984, nebular expansion, parallax and luminosity

Abstract

We present H alpha direct imaging and shell spectroscopic observations of two classical novae: FH Ser 1970 and QU Vul 1984. The distances, reddenings, luminosities at maximum, and the mass of the shell ejected by FH Ser are derived and discussed.