Midterm Review: General Astronomy Flashcards
1
Q
What is the Celestial Sphere?
A
Imaginary sphere with Earth at the center
2
Q
What is the Ecliptic?
A
Orbital plane of the Earth around the Sun
3
Q
What is unique about the North Star?
A
Never moves across the sky
4
Q
What is the 2-coordinate systems used?
A
Azimuth/altitude and right ascension/declination
5
Q
How do the coordinate systems differ from each other?
A
Azimuth/altitude is centered on the observer, right/ascension/declination is centered on the Earth
6
Q
What evidence proved the geocentric model was false?
A
Retrograde motion, other planets having moons, the phases of Venus being similar to the Moon
7
Q
A
