A binary star may, or may not, be related to a nova or supernova. In some specific cases, a supernova is specifically caused by a close binary system; but not all binary systems result in novas, and not all novas come from binary stars.
Nova Scotia
Nova - 1974 Linus Pauling Crusading Scientist 4-17 was released on: USA: 1 June 1977
Nicolaus Copernicus < NOVA NET ANSWER
A nova (as distinct from a supernova) is produced in a close binary system where one member is a white dwarf and the other a larger, less dense star. The white dwarf 'sucks' gas from the larger star which condenses into an accretion disc around the white star's equator. When this accretion disc reaches a critical mass it interacts with material on the white star and produces a huge thermonuclear explosion. This is what we see as a nova event. Novae are variable stars.
binary star
Nicolaus Copernicus < NOVA NET ANSWER
1486. also, if you believe this, your STUPID!
Nova - 1974 Can You Believe TV Ratings 19-14 was released on: USA: 18 February 1992
Nicolaus Copernicus < NOVA NET ANSWER
Nicolaus Copernicus < NOVA NET ANSWER
Nicolaus Copernicus < NOVA NET ANSWER
I believe it is about 120 mph.