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In message , Henry Spencer
writes In article , Bruce Palmer wrote: Nevertheless, as you move away from the sun, beyond 1 AU, there must be a point at which the intensity of harmful radiation falls below the level that will damage your eyes. It might be a long way out. The apparent brightness, in photons per square degree, doesn't change with distance -- the amount of light received by a given collector (e.g. your pupil) drops off according to the inverse-square law, but so does the apparent area of the Sun. Drat. You beat me to it. But continuing to the logical conclusion, the Sun will continue to be a hazard until it's too small to resolve (1 minute of arc ??) -- Rabbit arithmetic - 1 plus 1 equals 10 Remove spam and invalid from address to reply. |
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