Аннотация:The results of optical observations of Nova V404 Cyg 1989 are presented in comparison with the outburst in 1938. A possible model in the framework of nonstationary disk accretion is compared with that for Nova Vul 1988. Conclusions include that the outer disk radius in V404 is larger. The system V404 seems to be wider in comparison with Nova Vul 1988.