Abstract
The classical nova outburst is the second most violent explosion that occurs in a galaxy and its violence is exceeded only by a supernova explosion. However, novae are relatively nearby and a nova outburst occurs much more frequently than a supernova outburst so that there are more than 200 outbursts tabulated and discussed by Payne-Gaposchkin (1957) and McLaughlin (1960). The first ultraviolet (hereafter: UV) study of a nova was that of the 1970 outburst of FH Ser (Gallagher and Code, 1974) and that was broad band photometry done by the OAO—A2 satellite. The first UV spectroscopic study was that of V1500 Cyg 1975 done with Copernicus (Jenkins et al., 1977) but it was such a fast nova that the only line visible when the spectrum was taken was Mg II λ2800. Nova Cyg was also studied with the ANS satellite (Wu and Kester, 1975).
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