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Vega is measured to have an apparent visual brightness of 3650×10−26 W/m2 /Hz and lies at...

Vega is measured to have an apparent visual brightness of 3650×10−26 W/m2 /Hz and lies at a distance of 7.7 pc from the Sun.

(a) What flux would be observed if the star were moved to a distance of 2.0 kpc?

(b) What flux would be observed if the star were moved to the Large Magellanic Cloud (LMC) which has a distance of approximately 52 kpc?

(c) The apparent visual magnitude (V) of Vega is 0.03. What V magnitude would Vega have in the LMC?

Science   Advanced-Physics   
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