갑자기 밝기가 크게 증가했다가 몇 달 또는 몇 년에 걸쳐 원래의 밝기로 서서히 돌아가는 별.
A star that shows a sudden, large increase in brightness, often by many magnitudes, and then slowly fades back to its original luminosity over a period of months or years.
예문:
"The discovery of a new nova excited astronomers worldwide, prompting immediate observation campaigns."
"Unlike a supernova, a nova does not result in the complete destruction of the star system, which is usually a binary pair."
"The increase in brightness of a classical nova is caused by a thermonuclear runaway reaction on the surface of a white dwarf."