What can be said about the absolute magnitudes of two equal-sized stars whose colors are blue and yellow?
2007-05-21 13:59:43 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
Absolute magnitude is how bright a star would appear if it was 10 parsecs away. One parsec of course being a the distance one would have to be so that 1 AU (astromical unit = the distance from the Earth to the Sun) would appear to be one arc second. The value of this would be 3.26 light years.
The blue star is hotter than the yellow star and since they're both the same size it would also be brighter.
As it's a brighter star the absolute magnitude of the blue star would be a lower number than the yellow star (the lower the number, the brighter the star).
2007-05-21 14:38:49 · answer #1 · answered by JavaJoe 7 · 1⤊ 0⤋
The blue star is hotter, and therefore radiates more energy per unit area. So both stars being the same size, the blue one will be brighter. That means its absolute magnitude will be a smaller number.
2007-05-21 14:23:09 · answer #2 · answered by injanier 7 · 1⤊ 1⤋
i know that the blue star is hotter than the yellow star
i am not sure how to tell the true distance(absolute magnitude)
sorry but good luck
2007-05-21 14:11:46 · answer #3 · answered by Jen palla【ツ】 3 · 0⤊ 1⤋
the blue star is a male..........
2007-05-21 14:07:53 · answer #4 · answered by johnny dred 3 · 2⤊ 0⤋
don't stare at them for too long
you'll go blind
2007-05-21 14:03:40 · answer #5 · answered by Anonymous · 1⤊ 1⤋
they are in space...lol
2007-05-21 14:07:28 · answer #6 · answered by hgsaddgh 4 · 2⤊ 0⤋