|5.3 Star Types and Reading Spectra|
One way we can identify the type of a star is by looking at its spectrum, the amount of light it emits at each wavelength. Each star's spectrum gives us all the information we have about that star. Although each star's spectrum is unique in detail, the shape of this spectrum histogram is similar to other stars of the same type. By comparing an unknown star's spectrum with the spectra of stars whose type is known, we can get clues to the mystery star's type.
(put a CV spectrum somewhere on this page.)
You can find out more about the different natures of
the four types of stars I've observed by taking a look
at the star
type handout page. Then,
look the spectrum example for each type of star, using the links below.
A new window will appear- keep using it for the rest of this session.
For each spectrum, notice the different shapes. Answer these questions, and the information in your notebook, for future reference.
Go to the Next page to get
copyright © 1995-2001 Regents of the University of California