Hasan .
asked • 05/07/21What is the brightness ratio for Antares at 10 pc?
1/289
1/17^2
none of these
either of these
Sidney P. answered • 05/07/21
Minored in physics in college, 2 years of recent teaching experience
The distance estimates I find for Antares are 550-600 LY or 170-184 pc. Plugging in 177pc, I get a brightness ratio (10/177)2 = 1/313, easily the same as 1/289 within the errors.
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