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Photometry of the Pleiades. The Pleiades Cluster “The Seven Sisters”. Aperture. The Magnitude System. Absolute Magnitude A measure of the intrinsic brightness of a star 10 parsecs away Apparent Magnitude How bright an object appears Measured with a photometer.
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Photometry of the Pleiades The Pleiades Cluster “The Seven Sisters” Aperture
The Magnitude System • Absolute Magnitude • A measure of the intrinsic brightness of a star • 10 parsecs away • Apparent Magnitude • How bright an object appears • Measured with a photometer
Computing Distances to Stars Absolute Magnitude Distance in Parsecs Apparent Magnitude
Computing Distances to Stars Absolute Magnitude Distance in Parsecs Apparent Magnitude