1. Using the 14-inch telescope on the roof of the physics building, you measure the apparent...
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1. Using the 14-inch telescope on the roof of the physics building, you measure the apparent magnitude of a bright star to be m = 1.8. You look in the Hipparcos catalogue and find that the measured parallax angle for this star is p = 0.0043 arcseconds. (a) What is the distance to this star, d, in parsecs? (b) What is the star's distance modulus? (c) What is the star's absolute magnitude, M? 1. Using the 14-inch telescope on the roof of the physics building, you measure the apparent magnitude of a bright star to be m = 1.8. You look in the Hipparcos catalogue and find that the measured parallax angle for this star is p = 0.0043 arcseconds. (a) What is the distance to this star, d, in parsecs? (b) What is the star's distance modulus? (c) What is the star's absolute magnitude, M?
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