Asked in Needs a Topic
Needs a Topic
If the spectrum of a star indicates that the star shine with red light?
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Asked in Planetary Science
Does the spectrum of light from a star have no gaps?
Asked in Astronomy
Why does a blue star shine blue?
Blue stars shine blue because of the energy that they are radiating. Blue is a higher (more energetic) wavelength of the visible spectrum of electromagnetic radiation. Blue stars have much more energy associated with them, therefore, the majority of the light that they release is in the higher spectrum...blue light.
Asked in Scientists
How do scientist determine the composition of a star?
Asked in Science, Astronomy, Stars
How can you find out the temperature of a star by its light?
The star can be observed with a spectrograph, which spreads the light out according to its wavelength to produce a spectrum. The wavelength of peak intensity indicates the surface temperature. The light from a star is classified paradoxically as 'black body radiation', which means that its colour and temperature are closely linked by a relationship that can be reproduced in the laboratory. Within the spectrum there are also dark lines at specific wavelengths, and these indicate the presence of the different elements in the outer layer of the star.
Asked in Astronomy, Stars
Every star has a unique spectrum what does this suggest about stars?
The spectrum indicates the chemical composition of each star. As the chemical composition changes, the spectrum changes. However, because of the huge mass of stars, these changes are so slow they are not being "observed" by human astronomers. The relative velocity between each star and us is responsible for a shift of the whole spectrum. If a star is "approaching us", the spectrum is shifted towards the blue part of the spectrum. If the star "moves away" the spectrum is redshift.
Asked in Astronomy, Stars
How do astronomers learn what elements are in a star?
Asked in Astronomy, Stars, Visible Light Spectrum
How can spectrum tell us if an object is reflecting blue light from a star?
Why do astronomers study the entire electromagnetic spectrum?
It is important for astronomers to study the entire range of the electromagnetic spectrum because every star, including our Sun, emits light at a wide range of wavelengths, all across the visible spectrum, and even outside the visible spectrum. Astronomers can learn a lot from studying the details of the spectrum of light from a star.
What do you use to find the chemical composition and temperature of a star?
The light that comes from the star. The light is spread out into its spectrum and the pattern of spectral lines allow the composition (and temperature) to be determined. The temp can also be found by looking at the black body curve for the star (also from spectrum), or, by looking at the color of the star (difference in intensity of the light through two different color filters typically B and V. The light that comes from the star. The light is spread out into its spectrum and the pattern of spectral lines allow the composition (and temperature) to be determined. The temp can also be found by looking at the black body curve for the star (also from spectrum), or, by looking at the color of the star (difference in intensity of the light through two different color filters typically B and V.
Asked in Astronomy, Planetary Science, The Moon
Does Mercury shine with its own light or reflected light from stars?
Asked in Astronomy, Planetary Science
The amount of light a star radiates and the distance a star is from the earth is called the?
because a star's atmosphere absorbs colors of instead of emitting them, the spectrum of a star is called an absorption spectrum. an absorption spectrum is produced when light from a hot solid or dense gas passes through a less dense, cooler gas. The cooler gas absorbs certain portions of the spectrum.therefore, the black lines of a star's spectrum represent portions of the spectrum that are absorbed by the atmosphere.
Asked in Biology, Physics, Visible Light Spectrum
Visible light from a distant star can be spread into a spectrum by using what?
Asked in Astronomy, Planetary Science, Stars
Why does the moon shine in the sky if it is not a star?
Asked in Planet Mars
Why does mars at night shine like a star with a redish light?
Asked in Astronomy, Physics
What instrument breaks a star light into a spectum?