Temp, Color, Spectra

Lum, Temp & Size

100

We find the surface temperature of a star by measuring this.

What is color?

200

According to Wien's Law, the hottest stars are this color.

What is blue?

300

We can find this if we know a star's luminosity and temperature.

What is size?

400

If 2 stars have the same temperature, the one with the higher luminosity is ________.

What is bigger?

500

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

What is less luminous?

Spectra

100

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

What is a stellar spectrum?

200

Type of spectrum emitted by a star.

What is an absorption spectrum?

300

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

What is spectral types?

400

The letters indicating spectral types from hottest to coolest.

What is OBAFGKM?

500

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

What is an emission spectrum?