The spectrum is a kind of analysis of the light emitted by a star.
Electromagnetic
The most abundant type of stars is red dwarves.
stars there called stars
The light from stars can tell us what type of star it is (our Sun is a G type), the stars spectrum can tell us what elements are in the star, and its intristic brightness can help us determine how far away it is. Also, if there is a wobble in the star, or a change it the stars brightness can tell us if it has a planet.
Yes. Around 76% of the stars are low luminosity stars.
The most common type is main-sequence stars. This is a fairly broad category; within it, the most common type is red dwarves.
absorption spectrum
Orange stars have a K-type spectrum with a wide distribtion of brightness.
Most stars have absorption spectra. In other words, stars possess thin outer layers that allow light to pass through. These layers produce what are called absorption lines. This means the light from the sun and stars are absorption spectra.
The stars with an A-type spectrum are the hottest common stars, but early-stage stars with a B-type spectrum are even hotter. The order of temperature is B-A-F-G-K-M for common stars. The M-type stars are the coolest common stars and they definitely look red, e.g. Antares, Betelgeuse. Remember the order by learning this: Be A Fine Girl, Kiss Me!
Just now (December), look for Sirius which is a nearby star and it has a type-A spectrum.
The most abundant type of stars is red dwarves.
main sequence stars
scientists can tell the stars composition and temperature from its spectrum. Hope tht helps :]
The differences in spectrum are mainly due to: * Differences in temperature between the stars * Differences in chemical composition * Differences in relative movement (redshift / blueshift, due to the Doppler effect)
All stars radiate infra-red along with the rest of the spectrum.
which type of spread spectrum is advantageous? which type of spread spectrum is advantageous?
stars there called stars