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What three properties of stars can astronomers determine by analyzing the spectrum of the stars light?

Answer 1

Madeline Arroyo

See explanation...

The three items on my list were:

Emission or absorption lines in the spectrum can be used to determine the chemical composition.

The peak of the black body radiation, which spans a large frequency range, can be used to determine temperature.

The red or blue shift of the emission or absorption lines indicates the relative velocity.

In addition to these three, the spectrum can be utilized to assist in determining:

The dispersion of the emission and absorption lines is an intriguing factor that could point to the existence of a protoplanetary disc or other surrounding structure.

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Answer 2

Emilia Acosta

Through light spectrum analysis, astronomers can ascertain the temperature, chemical makeup, and radial velocity of stars.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.