The center star in the head of the asterism Scorpius is Dschubba. Assume that Dschubba is a spherical blackbody with a surface temperature of 28,000 K and a radius of 5.16 × 109m, located at a distance of 123 parsecs from Earth. Determine the following for Dschubba: (a) luminosity relative to the Sun (note that L = 3.83 × 1026W ). (b) absolute bolometric magnitude (note that M = 4.74). (c) apparent bolometric magnitude.
The center star in the head of the asterism Scorpius is Dschubba. Assume that Dschubba is a spherical blackbody with a surface temperature of 28,000 K and a radius of 5.16 × 109m, located at a distance of 123 parsecs from Earth. Determine the following for Dschubba: (a) luminosity relative to the Sun (note that L = 3.83 × 1026W ). (b) absolute bolometric magnitude (note that M = 4.74). (c) apparent bolometric magnitude.
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The center star in the head of the asterism Scorpius is Dschubba. Assume that Dschubba is a spherical blackbody with a surface temperature of 28,000 K and a radius of 5.16 × 109m, located at a distance of 123 parsecs from Earth. Determine the following for Dschubba:
(a) luminosity relative to the Sun (note that L = 3.83 × 1026W ).
(b) absolute bolometric magnitude (note that M = 4.74).
(c) apparent bolometric magnitude.
(d) radiant flux at the star’s surface (in SI unit).
(e) radiant flux at Earth’s surface (in SI unit).
(f) peak wavelength λmax when plotting the plank function against wavelength (in nm)
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