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Use the Luminosity Distance Formula. Find the distance to a star (L=5.2x1023 watts) whose apparent brightness at Earth is 1.0 x10-10 watt/m2. Formula: Apparent Brightness

Use the Luminosity Distance Formula. Find the distance to a star (L=5.2x1023 watts) whose apparent brightness at Earth is 1.0 x10-10 watt/m2. Formula: Apparent Brightness (AB) = Luminosity / 4 r2 A 3.251 x 10-16m B 3.251 x 1016m C 2.034 x 1016m D 2.034 x 10-16m

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