The hottest stars are white or blue, cooler stars are yellowish.
Cooler still are the orange stars. The coolest stars appear red.
That's how the spectrum of a star is related to its surface temperature.
The reason is that the hotter the star, the shorter the wavelength at which the light is most intense in its spectrum. Blue light is of shorter wavelength than red.
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Primarily, it's spectrum (it's light seen through a spectrograph).
That's done by analyzing the star's spectrum.
The temperature of a star is determined for it's colour spectrum. The hotter the star the more the spectrum is towards blue where as a cooler star has a spectrum closer to red.
binary star systems
A continous spectrum hasn't discrete gaps between lines.
Primarily, it's spectrum (it's light seen through a spectrograph).
That's done by analyzing the star's spectrum.
The temperature of a star is determined for it's colour spectrum. The hotter the star the more the spectrum is towards blue where as a cooler star has a spectrum closer to red.
Atoms in the atmosphere of the star is responsible for the dark lines in its spectrum.
No, a spectrum of light with no gaps can not be achieved.
By the star's spectrum.
They analyze the star's spectrum. Each element produces characteristic lines in a spectrum.
binary star systems
What elements the star is made of.
The spectrum is a kind of analysis of the light emitted by a star.
A continous spectrum hasn't discrete gaps between lines.
the lines in its spectrum