To: qam1
But still more than enough time to fry any life on a planet orbiting it in the habitability zone
These sorts of flares are much hotter that the photosphere - around 10,000 to 20,000 kelvin, hence they (briefly) produce large amounts of UV. Enough to stimulate the production of an ozone layer in an oxygen rich atmosphere.
18 posted on
04/10/2018 6:02:46 PM PDT by
Spirochete
(GOP: Gutless Old Party)
To: Spirochete
By comparison, the photosphere for a red dwarf is somewhere around the 2500-3200 Kelvin range. Energy radiated per unit area is proportional to the temperature to the fourth power, according to the Stefan-Boltzmann equation.
19 posted on
04/10/2018 6:58:32 PM PDT by
Fred Hayek
(The Democratic Party is now the operational arm of the CPUSA)
To: Spirochete
How would the oxygen get there?
20 posted on
04/10/2018 7:05:16 PM PDT by
Moonman62
(Give a man a fish and he'll be a Democrat. Teach a man to fish and he'll be a responsible citizen.)
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