Star Composition

Front

What does a blue shift in a star's light indicate?

Back

The star is moving towards the Earth.

Front

What does redshifting in the spectra of stars indicate about the universe?

Back

The universe is expanding.

Front

Which two elements make up most of the sun?

Back

Helium and hydrogen.

Front

What type of spectrum indicates a star is moving towards you?

Back

A blue shift spectrum.

Front

What does a spectrum represent in relation to an object?

Back

The specific parts of an object's light.

Front

What is the primary element in stars like the sun?

Back

Hydrogen.

Front

What is the significance of studying star spectra?

Back

It helps scientists understand the composition and movement of stars.

Front

What is the term for the change in frequency of light from a moving object?

Back

Doppler effect.

Front

What happens to the light of a star moving away from Earth?

Back

It shifts towards the red side of the spectrum.

Front

What is the main component of the universe according to current scientific understanding?

Back

Hydrogen.