Information that you can find about the star by looking at its spectra is its luminosity, surface temperature, its type(common/rare), color, how/if a star is moving, the density, the size, and future of the star.
2. And looking for spectral lines informs as to what elements are present.
scientists can tell the stars composition and temperature from its spectrum. Hope tht helps :]
Dark dust clouds primarily absorb and scatter visible light, hence appearing dark to us. They do not radiate strongly in the ultraviolet part of the electromagnetic spectrum.
Observation of the shift of a star's spectrum toward red indicates it is moving away from us (redshift), while blue indicates it's moving closer (blueshift). By studying this shift in the star's spectrum, we can determine its velocity and distance from Earth, providing valuable information about its motion and location in space.
Spectrum gives information about the composition of a star's gases by breaking down the incoming radiation into its constituent wavelengths. This information helps astronomers determine the elements present in the star's atmosphere and its temperature.
Redshift of a star refers to the phenomenon where the light emitted by the star is shifted towards the red end of the electromagnetic spectrum due to the star moving away from us. This shift is caused by the Doppler effect and is commonly used to determine the speed and direction of a star's movement.
The emission spectrum of a star is the spectrum of frequencies for emitted electromagnetic radiation during the transition of an atom's electrons from a high-energy state to a low-energy state. The emission spectrum can differ depending on the temperature and composition of the star.
how can you tell if an object is reflecting blue light from a star
scientists can tell the stars composition and temperature from its spectrum. Hope tht helps :]
'Astronomical spectrum' is not a specific term. I suspect you are thinking of the emission spectrum of a star, which can tell us a great deal about the composition of the star. Light and other radiations from the object are spread out into constituent wavelengths and dark lines appear across the spectrum at certain specific wavelengths which are characteristic of elements present.
White light, which can split in to the colours is part of the electromagnetic spectrum. Other parts of the electromagnetic spectrum are, cosmic rays, X-rays, UV light, infra red(IR) waves, micro waves, and radio waves. m ic ray of the spectrum
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.
Visible light, which lets humans and other animals see, is part of the electromagnetic spectrum. RF (radio frequency) waves are part of the electromagnetic spectrum. RF transmissions carry radio and television broadcasts. They have the lowest frequency. Microwaves are part of the electromagnetic spectrum. X-Rays are part of the electromagnetic spectrum and have the highest frequency..
All wavelengths shorter than the low part of the ultra-violet spectrum are shielded from us by the atmosphere.
The visible light region of the solar electromagnetic spectrum has the maximum intensity. This is the range of wavelengths that our eyes are sensitive to, making it the most prominent part of the spectrum for us.
The star with the greater shift moves towards us, or away from us, faster.
Infrared
The closest star to us is the sun.