Review Questions
By Formative Library
starstarstarstarstar
Last updated over 2 years ago
12 Questions
1
1.
What two factors determine how bright a star appears to be in the sky?
1
2.
Explain why color is a measure of a star’s temperature.
1
3.
What is the main reason that the spectra of all stars are not identical? Explain.
1
4.
What elements are stars mostly made of? How do we know this?
1
5.
What did Annie Cannon contribute to the understanding of stellar spectra?
1
6.
Name five characteristics of a star that can be determined by measuring its spectrum. Explain how you would use a spectrum to determine these characteristics.
1
7.
How do objects of spectral types L, T, and Y differ from those of the other spectral types?
1
8.
Do stars that look brighter in the sky have larger or smaller magnitudes than fainter stars?
1
9.
The star Antares has an apparent magnitude of 1.0, whereas the star Procyon has an apparent magnitude of 0.4. Which star appears brighter in the sky?
1
10.
Based on their colors, which of the following stars is hottest? Which is coolest? Archenar (blue), Betelgeuse (red), Capella (yellow).
1
11.
Order the seven basic spectral types from hottest to coldest.
1
12.
What is the defining difference between a brown dwarf and a true star?
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/17-review-questions