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Samoth, open a bookie event...
- Thread starter redguru
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redguru
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From Astronomy cafe:
A typical supernova of Type II ( massive star ) can brighten by about 18 to 20 magnitudes. Since Betelgeuse is a visual magnitude of +0.8, it will be perhaps a magnitude of -17 to -19 magnitude. This is brighter than the Full Moon ( about -18 ) but a bit fainter than the Sun ( -26m).
The bottom line is that for most of the year, there will be no pitch black sky for the better part of a year, because Betelgeuse will never be more than 12 hours away from the sun in rising.
A typical supernova of Type II ( massive star ) can brighten by about 18 to 20 magnitudes. Since Betelgeuse is a visual magnitude of +0.8, it will be perhaps a magnitude of -17 to -19 magnitude. This is brighter than the Full Moon ( about -18 ) but a bit fainter than the Sun ( -26m).
The bottom line is that for most of the year, there will be no pitch black sky for the better part of a year, because Betelgeuse will never be more than 12 hours away from the sun in rising.
redguru said:
Now that I haven't heard!
I'm wondering what underground neutrino detectors are currently up and running. If the info is released and relayed fast enough, we (the public) would have the opportunity to actually watch the star supernova as it's happening.
Now THAT'D be the chance of a millennium!
Hmm, never heard of this before:
Foe (unit of energy)
From Wikipedia, the free encyclopedia.
A foe is a unit of energy equal to 10^44 joules.
To measure the staggeringly immense amount of energy produced by a supernova, specialists occasionally use a unit of energy known as a foe, an acronym derived from the phrase fifty one ergs, or 10^51 ergs. This unit of measure is convenient because a supernova typically releases about one foe of observable energy in a very short period of time (which can be measured in seconds). In comparison, the total output of the Sun over its entire lifespan (billions of years) is about a tenth of a foe.
Retrieved from http://en.wikipedia.org/wiki/Foe_(unit_of_energy)
Foe (unit of energy)
From Wikipedia, the free encyclopedia.
A foe is a unit of energy equal to 10^44 joules.
To measure the staggeringly immense amount of energy produced by a supernova, specialists occasionally use a unit of energy known as a foe, an acronym derived from the phrase fifty one ergs, or 10^51 ergs. This unit of measure is convenient because a supernova typically releases about one foe of observable energy in a very short period of time (which can be measured in seconds). In comparison, the total output of the Sun over its entire lifespan (billions of years) is about a tenth of a foe.
Retrieved from http://en.wikipedia.org/wiki/Foe_(unit_of_energy)
