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An object further away will appear less bright than the same object closer to us.
However, a supernova can emit the same brightness as our Sun does in it's whole lifetime, in a very short period of time - a nova on the other hand, at maximum brightness is only about 100,000 times that of the Sun.
What else can I help you with?
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 would happen if a super nova hit earth?
A supernova is an exploding star. The Earth would be instantly incinerated, of course. There is approximately zero chance this will ever happen, though. If there was a supernova near Earth ... it would depend on how near. Betelgeuse is a good candidate for a supernova "soon" (within the next million years or so). Scientists who have modeled supernova explosions don't expect it will have much of an impact. If a star nearer than Betelgeuse were to go supernova, then it might be more serious.
What is the origin of the word supernova?
Novas have been noted for over 150 years now. But until well into the 20th century, it was thought that all novas were pretty much the same thing, it's just that some were bigger than others. Today we know that a "regular" nova is a very different thing from a supernova, and one of the biggest differences is size. So the logical name for the better understood "large, hot star type of nova" was simply to call it a "supernova". It is not the same thing at all as a "regular" nova, it's mechanics and chemistry are very different.
What kind of star was a super nova?
a red super giant like the largest known star vy canis majoris
What is a star that has produce more energy than gravity can hold and explodes?
A star that has produced more energy than its own gravity can hold is known as a supernova. This explosive event releases a tremendous amount of energy and leads to the destruction of the star. Supernovae are among the most powerful and energetic events in the universe.
Which refers to the stellar explosion that is more energetic than a nova?
A supernova. See related question.
What is bigger than a supernova?
A hypernova is a more powerful and larger explosion than a supernova. It occurs when a massive star collapses and releases an immense amount of energy, much greater than that of a supernova. Hypernovae are one of the most energetic events in the universe.
Do Super Novas Exist?
Yes. A star that explodes so that it emits thousands of times more heat and light than normal is a nova. If a nova emits as much as a whole galaxy it is termed a supernova.
What is a gigantigc explosion of a star millions or billions of times brighter than the star was?
A nova or supernova.
What is supernovae star?
A supernova is, basically, a large star (more than 2-3 times the mass of the Sun) exploding. Considering a Nova, the abovenumbers are in question.
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 would happen if a super nova hit earth?
A supernova is an exploding star. The Earth would be instantly incinerated, of course. There is approximately zero chance this will ever happen, though. If there was a supernova near Earth ... it would depend on how near. Betelgeuse is a good candidate for a supernova "soon" (within the next million years or so). Scientists who have modeled supernova explosions don't expect it will have much of an impact. If a star nearer than Betelgeuse were to go supernova, then it might be more serious.
What happen to a large star?
Supernova. Stars below nine solar masses become white dwarfs, though stars more than 1.4 solar masses (Chandrasekhar limit) should nova during their life time. http://en.wikipedia.org/wiki/Supernova http://en.wikipedia.org/wiki/Chandrasekhar_limit
Is there a possibility the sun could go super nova or turn into a black hole?
No. Our Sun isn't massive enough to go supernova, or to turn into a black hole. A star needs to be more than 3 times more massive than our Sun in order to become a black hole.
Is the sun bigger then a supernova?
Most stars are dimmer than our sun (intrinsic brightness), and thus we cannot see them. However, most of the stars that we can see are actually quite a bit brighter than our sun. Some of them are exceedingly bright.
What is the origin of the word supernova?
Novas have been noted for over 150 years now. But until well into the 20th century, it was thought that all novas were pretty much the same thing, it's just that some were bigger than others. Today we know that a "regular" nova is a very different thing from a supernova, and one of the biggest differences is size. So the logical name for the better understood "large, hot star type of nova" was simply to call it a "supernova". It is not the same thing at all as a "regular" nova, it's mechanics and chemistry are very different.
Why doesn't a supernova occur on earth?
A supernova can't occur on any planet. A supernova occurs when a very large star, at least 8 times more massive than the sun dies.
