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3 years ago

12

If two stars differ by 9.6 magnitudes what is their flux ratio?

1 answer:

galina1969 [7]3 years ago

6 0

Borrowing from the tradition of the ancient Greeks, the first ones
who tried to describe the brightness of stars with numbers ...

6 magnitudes = a ratio of 100 .

In more modern notation . . .

   1 magnitude = ratio of (100) ^ (1/6)

   = about 2.154...

   9.6 magnitudes = (100) ^ (9.6/6)

   = 100¹·⁶

   =   1,584.89 (rounded)

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