a) size b) mass c) temperature d)location
2007-05-02 16:28:04 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
a, b, and c. Blue stars are hotter, more massive, and larger than the other kinds of stars. Its location is irrelevent to its classification.
2007-05-02 18:49:42 · answer #1 · answered by Spilamilah 4 · 0⤊ 0⤋
The surface temperature of a main sequence star is determined by the rate of energy production at the core and the radius of the star. Massive stars can have surface temperatures of 50,000 K. Smaller stars such as the Sun have surface temperatures of a few thousand degrees. Red giants have relatively low surface temperatures of about 3,600 K, but they also have a high luminosity due to their large exterior surface area.
The stellar temperature will determine the rate of energization or ionization of different elements, resulting in characteristic absorption lines in the spectrum. The surface temperature of a star, along with its visual absolute magnitude and absorption features, is used to classify a star.
2007-05-02 23:54:41 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Temperature of the star.
Blue stars are hotter than all the others, it is a hot young star.
2007-05-03 02:44:37 · answer #3 · answered by spaceprt 5 · 0⤊ 0⤋
c
The hotter the star, the more energy the light photons have. Blue photons need more energy (per photon) than red ones.
Check out color temperature on Wiki.
2007-05-02 23:32:03 · answer #4 · answered by Raymond 7 · 0⤊ 0⤋
Temp
Using the ROYGBIV scale
2007-05-02 23:35:39 · answer #5 · answered by Anonymous · 0⤊ 0⤋
temp
2007-05-03 00:24:33 · answer #6 · answered by Andre 2 · 0⤊ 0⤋
TEMPERATURE!!!!!
2007-05-02 23:30:43 · answer #7 · answered by Brad L 3 · 0⤊ 0⤋