The Star Vega Has an Absolute Magnitude of About 4

question 63

Multiple Choice

The star Vega has an absolute magnitude of about 4 and an apparent magnitude of about 0. Based on the definitions of absolute and apparent magnitude, we can conclude that .

• A)Vega's surface temperature is cooler than the Sun
• B)Vega's luminosity is less than that of our Sun
• C)Vega has a parallax angle of 1/10 arcsecond
• D)Vega is nearer than 10 parsecs from Earth

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