Unit 1 Review

2. right ascension is divided into 24 partitions called
5. a star with a magnitude of -1 will be ___________ than a star is a magnitude of +1
6. traveling a few (4 to 6) AU from the Earth will reach this planet
9. dividing one degree into 60 smaller partitions gives a smaller measurement called a(n)
10. how bright a star appears to be from Earth is called the ________ magnitude
11. the average distance from the Earth to the Sun
13. A planet that appears to move backwards is said to be going through __________ motion
17. how far from the celestial equator (or directly north or directly south) is known as
20. the distance light travels in one year
21. the line across the constellations that the Sun appears to draw throughout a year is called the

1. how bright a star is compared directly to other stars is called the __________ magnitude
3. dividing an arcminute into 60 smaller partitions gives a smaller measurement called a(n)
4. If the Earth had a perfectly circular orbit but still had an axial tilt, the Sun's analemma would appear to be a flat _________ line
7. if you traveled to Australia the Sun's analemma would appear
8. Andromeda is a few ___________ light years away
12. the grid line in the celestial sphere that corresponds to East-West direction
14. the Moon goes through a full cycle of its phases every 28 _____
15. If the Earth was not tilted, the Sun's analemma would be a flat ___________ line
16. if you took a picture of the Sun at noon every day for a year, you would get a figure-8 shape known as the Sun's _________
18. declination is measured in
19. if you traveled to Canada the Sun's analemma would become more noticeably