Sadly, that must depend on where in the metro area your school is located.
In the inner city, the class is most likely to have occasional access to a glass prism
which is passed around to all the classes in that school or all the schools in that district.
In the suburbs and the magnet schools, the class is more likely to have their own
diffraction grating, which the whole class or one of the study groups in it can use
whenever they feel like it.
Its elemental composition.
A spectrograph breaks down the light from stars into its component colors or wavelengths. Each chemical element absorbs and emits light at specific wavelengths, creating a unique fingerprint called a spectral line. By analyzing the spectral lines in a star's light, scientists can determine its chemical composition.
The entire visible spectrum plus the infrared and ultraviolet. They are trying to obscure the stars light and see the faint reflections of any planets nearby.
Stars don't have electromagnetic waves. They absorb them and release them. It is not a known fact because electromagnetism is only a theory for now. However, light that reach us from stars are said to be EM waves because visible light is theorized to be in the EM spectrum.
Planets and comets shine because of reflected light because they do not produce their own light. Stars are enormous balls of gas that are undergoing fusion which releases a very large amount of energy in the electromagnetic spectrum which includes visible light. So stars shine because they produce their own light and not because they reflect light.
Its elemental composition.
Light wavelength and light spectrum i believe.
Most stars exhibit a continuous spectrum, which contains all wavelengths of light in a continuous distribution. This is often referred to as a blackbody spectrum due to its smooth curve.
He noted that light emitted from stars is shifted further toward the red of the electromagnetic spectrum . From this he concluded that the universe was expanding.
A spectrograph is a device that separates light from stars and other objects into its different wavelengths to produce a spectrum. This allows astronomers to study the composition, temperature, and other properties of the object emitting the light through analysis of the spectrum.
Spectroscope
UV, IR and light WITHIN our visual spectrum are generated by most stars. There are OTHER previously unseen, waves such as Gamma and X-Rays that are also blown out by 'stars', but are not generally referred to as 'light'.
Most stars have continuous spectra, which contain a continuous range of wavelengths without any gaps. This is due to the emission of light from the star's surface at various temperatures.
A spectrograph breaks down the light from stars into its component colors or wavelengths. Each chemical element absorbs and emits light at specific wavelengths, creating a unique fingerprint called a spectral line. By analyzing the spectral lines in a star's light, scientists can determine its chemical composition.
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.
That they were receeding
When colors are absorbed into a star's spectrum, they appear as dark lines or bands called absorption lines. These lines are caused by the specific elements present in the star's atmosphere absorbing certain wavelengths of light, which are then missing from the overall spectrum observed.