The apparent brightness of a star is 1.0 × 10-12 W/m2 and the peak wavelength is...

Question

Question

The apparent brightness of a star is 1.0 × 10^-12 W/m² and the peak wavelength is 600 nm. Estimate its distance from us.

0.090 pc

0.90 pc

900 pc

9.0 pc

90 pc

I do not understand how 179.24 pc relate to the answer choices I am given.

Answer 1

Answer #1

L If this stax is a main sequence star then. 1 L = 3-84-X.10 watts. Apparent brightness (b) of a is related to the luminosity

Answer 2

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