Although this star is too faint for a small telescope, it is one of the most interesting novae recorded in our history. Before 1945, its brightness fluctuated between 12.5 mag and 15 mag. However, it then flared up and maintained a brightness of 6.5 mag for 5 years. Although it later faded back to its original brightness, it still retained its original period of brightness changes. It is definitely a binary star, with the larger component being a red giant that varies in brightness, while the smaller component is a hot dense star that flared up as a nova.