Star Spectra Review GN 24-25

Front

What do we primarily use emission/absorption spectra to identify in stars?

Back

Composition

Front

What is the name of the scientific apparatus used to examine star spectra?

Back

Spectroscope

Front

What does redshifting in star spectra indicate about the universe?

Back

The universe is expanding.

Front

Which spectrum indicates that a star is moving away from us the fastest?

Back

Spectrum C

Front

What elements can be identified in the spectra of stars?

Back

Elements like beryllium, copper, manganese, and strontium can be identified.

Front

What is the significance of studying star spectra?

Back

It helps scientists determine the composition, temperature, and movement of stars.

Front

What does the term 'luminosity' refer to in the context of stars?

Back

Luminosity refers to the total amount of energy emitted by a star per unit of time.

Front

How does temperature affect the color of a star?

Back

Hotter stars appear blue, while cooler stars appear red.

Front

What is the relationship between a star's spectrum and its distance from Earth?

Back

The spectrum can show redshift or blueshift, indicating whether the star is moving away or towards Earth.

Front

What is the role of a spectroscope in astronomy?

Back

A spectroscope separates light into its component colors to analyze the spectrum of stars.