It's age, possible mass and distance from the sun.
Its surface temperature
If the star is a bright blue-whit color then the star is hot....but if its red, or a color that's close top red then the it isn't hot, but its not cold either....its just not as hot as the blue-white star is. You can also find this information and more in the Kelvin Scale below.
the color of the star regulus is blue-white
what type of star is a cursa star
A star's color is related to its surface temperature.
Its surface temperature
If the star is a bright blue-whit color then the star is hot....but if its red, or a color that's close top red then the it isn't hot, but its not cold either....its just not as hot as the blue-white star is. You can also find this information and more in the Kelvin Scale below.
The color of the star Indicates its Temperature.
welqwell a star is a luminous sphere of plasma held together by it own gravity .the nearest star to the earth is the sun...
the color of the star regulus is blue-white
the color of a young star is *bluish white*
The hotter the star, the closer to white the color.
Castor is a variable star and also a quadruple star system, and has a spectral class of A1/A2 giving it a colour of white to white blue. See link for more information
Bernard's star is an old red dwarf star and is the fourth closest star to the Sun. It is the color of red.
The prefix "astro-" means star. It is derived from the Greek word "astron," which means star.
The color of a star is a good indicator of its temperature.
the color of the star regulus is blue-white