What are celestial navigation and its principles? What is the concept of a fixed background of stars?
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- How does the conservation of angular momentum explain certain aspects of celestial motion?
- How are exoplanets detected through stellar motion (e.g., wobble method)?
- How does Earth's revolution around the Sun cause the apparent annual motion of stars? What is proper motion velocity in different coordinate systems?
- What is the summer solstice? What are galactic coordinates?
- Are there exomoons? How would we detect the motion of an exomoon?
- What are Cepheid variables and why are they important?
- What is the proper motion of a star?
- What happens to a star when it leaves the main sequence? What is a red giant?
- How does Earth's revolution affect the apparent position of the Sun relative to the stars? What is the relationship between the ecliptic and the celestial equator?
- How do we predict space weather? What are the effects of space weather on satellites and astronauts?
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