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A supernova.
supernova
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What is it called when a star suddenly increases in brightness?
A nova is a star that suddenly increases in brightness.
What is the original brightness of a star when it suddenly flares up to many times?
A star the size of our Sun or smaller is too small to become a "Nova", so we can expect that the original brightness of a "nova" star is probably brighter than the Sun; possibly a lot brighter.
What star suddenly flares and then fades away?
The star that suddenly flares and then fades away is known as a "flaring star" or a "flare star". These stars experience temporary increases in brightness due to magnetic activity on their surfaces, before returning to their normal luminosity. This phenomenon is common in red dwarfs and other types of variable stars.
A black what is formed from a exploded star?
If the star is larger than about 5 times the size of our Sun, a black hole can form from the core of the exploded star
Why must astronmers figure out a star's distance to calculate it's actual brightness?
For the same real brightness, at a larger distance it would look less bright. On the other hand, you may have two stars that look like they are the same brightness, but one might be million times brighter (in real brightness) than the other - which would be compensated by the fact that the brighter star is a thousand times farther away.
What is it called when a star suddenly increases in brightness?
A nova is a star that suddenly increases in brightness.
What is the original brightness of a star when it suddenly flares up to many times?
A star the size of our Sun or smaller is too small to become a "Nova", so we can expect that the original brightness of a "nova" star is probably brighter than the Sun; possibly a lot brighter.
What does the absolute brightness of the star depend on?
the brightness of a star
What is the measure of the star's brightness?
The measure of a star's brightness is its magnitude. A star's brightness as it appears from Earth is called its Apparent Magnitude.Star's brightness is measured by there magnitude.
What measures the brightness of the star?
photographs use to measure the brightness of a star
A star's brightness is the brightness seen by humans on Earth. A star's brightness is its actual brightness and does not depend on where the star is viewed from.?
The brightness as seen from Earth is called the "apparent magnitude".The real brightness (defined as the apparent brightness, as seen from a standard distance) is called the "absolute magnitude".
What star suddenly flares and then fades away?
The star that suddenly flares and then fades away is known as a "flaring star" or a "flare star". These stars experience temporary increases in brightness due to magnetic activity on their surfaces, before returning to their normal luminosity. This phenomenon is common in red dwarfs and other types of variable stars.
What is the purpose of a star's brightness?
There is no purpose of a star's brightness. They just exist and shine.
What is an apparent brightness?
An apparent brightness is the brightness of a star as measured by an observer.
What the measure of a stars brightness called?
The measure of a star's brightness is its magnitude. A star's brightness as it appears from Earth is called its Apparent Magnitude.Star's brightness is measured by there magnitude.
A black what is formed from a exploded star?
If the star is larger than about 5 times the size of our Sun, a black hole can form from the core of the exploded star
How does a nova occur in space?
A nova is basically an explosion of a star, increasing its brightness by 100-1000 times. Novas occur by the pushing upward and outward of fusing layers of the star, starting with hydrogen.
