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Review Questions

Last updated almost 4 years ago
8 questions
1

Explain how parallax measurements can be used to determine distances to stars. Why can we not make accurate measurements of parallax beyond a certain distance?

1

Suppose you have discovered a new cepheid variable star. What steps would you take to determine its distance?

1

Explain how you would use the spectrum of a star to estimate its distance.

1

Which method would you use to obtain the distance to each of the following?

An asteroid crossing Earth’s orbit

1

Which method would you use to obtain the distance to each of the following?

A star astronomers believe to be no more than 50 light-years from the Sun

1

Which method would you use to obtain the distance to each of the following?

A tight group of stars in the Milky Way Galaxy that includes a significant number of variable stars

1

Which method would you use to obtain the distance to each of the following?

A star that is not variable but for which you can obtain a clearly defined spectrum

1

What are the luminosity class and spectral type of a star with an effective temperature of 5000 K and a luminosity of 100LSun?

Please take the time to check out the source for this material from Openstax if you plan to use this in your lesson plan!: https://openstax.org/books/astronomy/pages/19-review-questions