If We Restrict Our Measurements to a Specific Band of Color

question 43

Multiple Choice

If we restrict our measurements to a specific band of color or wavelength using an optical filter,what observations of a star are necessary to determine the absolute magnitude of the star at this color?

• A) distance and temperature
• B) apparent magnitude and temperature
• C) just apparent magnitude since absolute magnitude is simply apparent magnitude +5
• D) apparent magnitude and distance

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