astronomy puzzle

4. A 'sphere' around earth that the stars and planets are projected upon
9. The last star that the big dipper handle curves to
10. The angular distance of an object above the horizon
12. The angular distance of an object around or parallel to the horizon from a predefined zero point
14. The lines going side to side on the celestial sphere, parallel to earth's latitude
17. The first star that the big dipper handle curves to
19. Twice a year when the sun is farthest south/north from the celestial equator
20. The less dark part of a shadow

1. The lines going up and down the celestial sphere, parallel to earth's longitude
2. The north star
3. The name of how long it takes the moon to do one complete orbit around the earth
5. The sun's path over the course of a year
6. Main star in Leo asterism
7. A collection of stars that make a picture
8. The darkest part of a shadow
11. A section of the celestial sphere filled with asterisms
13. A 'belt' around the celestial sphere that the sun can always be found in
15. The shape that is traced in the sky by the sun at noon over the course of a year
16. The two points that the sun crosses the celestial equator
18. The time it take the moon to go through all of it's phases