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Not to be confused with a supernova - [See related]
In a few hundred days a nova pumps out as much energy as the sun does for more than a million years.
The Little Boy atomic bomb dropped on Hiroshima exploded with an energy of about 15 kilotons of TNT (~6 × 1013 joules)
During the Cold War, the United States developed hydrogen bombs with a maximum theoretical yield of 25 megatons (~1015 Joules)
A nova releases as much energy as the Sun emits in a million years or 1034 joules
which is about ten quintillion megatons of TNT (~1018 joules)
So you'd need about 17,000 of the most powerful hydrogen bombs to equal a nova.
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How much brighter is a supernova than a nova?
A supernova can be billions of times brighter than a nova. Novas occur on the surfaces of white dwarf stars and release energy comparable to millions of hydrogen bombs, while supernovae represent the explosion of an entire star and can briefly outshine entire galaxies.
What is a star exsplosion which increases the stars lumionosity to 1000 times that of a nova?
A supernova is an explosive event that can increase a star's luminosity to as much as 1000 times that of a nova. Supernovae occur when a massive star reaches the end of its life and undergoes a catastrophic collapse, releasing an immense amount of energy in the process.
What's the total energy emitted by the brightest nova explosion?
The total energy emitted by the brightest nova explosions is typically around 10^41 to 10^44 joules, which is equivalent to a few thousand times the total energy output of the sun in a year. Novae are caused by the explosive ignition of accumulated hydrogen on the surface of a white dwarf star in a binary system.
A star that explodes temporarily increasing its brightest?
binary star
Why do planets go into super nova?
Planets do not go into supernova; only stars can go supernova. A supernova occurs when a massive star undergoes a catastrophic explosion at the end of its life cycle. The explosion releases an immense amount of energy, leading to the destruction of the star.
