Question

The distance modulus of the star Vega is

— 0.5. At what distance is it from us ?​

Answer 1

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Solution:

Distance Modulus of Star Vega = -0.5 = m - M

Distance Modulus is the difference between the apparent magnitude(m) and absolute magnitude(M) which also defines the distance in parsecs which is,

Distance Modulus ,  

Now we will use logarithm property,

Therefore,

The distance of star Vega from us is 7.943 parsecs.