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The right y-axis of the H-R diagram on page 2 is absolute magnitude (Mv). Absolute magnitude is the apparent magnitude a star would have if it were 10 parsecs away from Earth. For the magnitude scale, the brighter the star, the smaller the magnitude, e.g., a 3rd magnitude star is brighter than a 4th magnitude star. For each of the stars below, determine its absolute magnitude from its position on the H-R diagram. Rigel Sun Betelgeuse Arcturus Vega Procyon A -

The right y-axis of the H-R diagram on page 2 is absolute magnitude (Mv). Absolute magnitude is the apparent magnitude a star would have if it were 10 parsecs away from Earth. For the magnitude scale, the brighter the star, the smaller the magnitude, e.g., a 3rd magnitude star is brighter than a 4th magnitude star. For each of the stars below, determine its absolute magnitude from its position on the H-R diagram. Rigel Sun Betelgeuse Arcturus Vega Procyon A -

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
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The right y-axis of the HR diagram on page 2 is absolute magnitude (Mv). Absolute magnitude is the apparent magnitude a star would have if it were 10 parsecs away from Earth. For the magnitude scale, the brighter the star, the smaller the magnitude, e.g., a 3rd magnitude star is brighter than a 4th magnitude star. For each of the stars below, determine its absolute magnitude from its position on the HR diagram. Rigel - Sun Betelgeuse Arcturus Vega Procyon A - - - -
Transcribed Image Text:The right y-axis of the HR diagram on page 2 is absolute magnitude (Mv). Absolute magnitude is the apparent magnitude a star would have if it were 10 parsecs away from Earth. For the magnitude scale, the brighter the star, the smaller the magnitude, e.g., a 3rd magnitude star is brighter than a 4th magnitude star. For each of the stars below, determine its absolute magnitude from its position on the HR diagram. Rigel - Sun Betelgeuse Arcturus Vega Procyon A - - - -
1,000,000 Spectral type O B A F D K M Rigel Betelgeuse Procyon A 18 10,000 Supergiants 100 L/Lo Upper-main- sequence O stars are the most massive stars. 10-2 10-4 Vega Main sequence 12 10 16 -5 Arcturus 2.5 Giants 0 Sun 1.4 The lower-main-sequence red dwarfs are the lowest-mass stars. Note: Star sizes are not to scale. 30,000 20,000 0.8 5 0.5 10 0.1 10,000 5000 3000 2000 Temperature (K)
Transcribed Image Text:1,000,000 Spectral type O B A F D K M Rigel Betelgeuse Procyon A 18 10,000 Supergiants 100 L/Lo Upper-main- sequence O stars are the most massive stars. 10-2 10-4 Vega Main sequence 12 10 16 -5 Arcturus 2.5 Giants 0 Sun 1.4 The lower-main-sequence red dwarfs are the lowest-mass stars. Note: Star sizes are not to scale. 30,000 20,000 0.8 5 0.5 10 0.1 10,000 5000 3000 2000 Temperature (K)
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