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Aldebaran is an orange giant star in the constellation Taurus. It has B, V , and...

Aldebaran is an orange giant star in the constellation Taurus. It has B, V , and R apparent magnitudes of B = 2.40, V = 0.86, and R = −0.37 respectively. Its bolometric correction mbol − mV = −0.6.

(a) For a measured parallax angle of 0.0500, determine the distance to Aldebaran in pc. Also convert your answer to meters.

(b) Determine the distance modulus to Aldebaran, and its absolute V magnitude.

(c) Determine the ratio of Aldebaran’s luminosity to that of the Sun.

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Answer #1

i.e. Aldebaran is 246.6 times brighter than sun

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