Lum, Temp & Size
Spectra
100
We find the surface temperature of a star by measuring this.
What is color?
100

Can be used to determine a star's temperature and composition.

What is a stellar spectrum?

200
According to Wien's Law, the hottest stars are this color.
What is blue?
200

Type of spectrum emitted by a star.

What is an absorption spectrum?

300
We can find this if we know a star's luminosity and temperature.
What is size?
300

When stars are classified using spectra, they are put into _________ _________. 

What is spectral types?

400
If 2 stars have the same temperature, the one with the higher luminosity is ________.
What is bigger?
400

The letters indicating spectral types from hottest to coolest.

What is OBAFGKM?

500

A small cool red star is _______ _______ than a large hot blue one.

What is less luminous?

500

The type of spectrum created by a hot low-density cloud.

What is an emission spectrum?

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