crossword puzzle

1. signs one of the 12 specific constellations the sun passes through.
4. magnitude astronomers describe the actual brightness of a star.
9. was a vain and boastful wife of King Cepheus of Ethiopia.
10. Are formed when a gas cloud out in the nebula or other region in space.
11. Rigel a young blue star and one of the most luminous of all stars.
12. Betelgeuse a red star that doesnt shine with a steady light as it expands.
16. apparent motion due to the rotation of the earth.
17. is the measurement of stars.
18. plane is the imaginary line traced by the sun and sky.
19. body an opaque object that emits thermal radiation.
21. the difference in two solar calendars.
23. patterns of stars seen in the sky.
24. a constellation named after the Greek hero Herakles.

2. star patterns that have discovered but not been officially identified as a constellation.
3. constellations lie on the other side of the celestial equator.
5. is known as Dragon.
6. Major known as the big bear.
7. are created when materials in the disk around a preexisting star begins to condense around a rock.
8. Shift stars seem to shift their positions against the farther stars.
10. Giant stars those with a mass more than 10 times higher than that of our sun.
13. the standard unit of distance.
14. constellations constellations that move counterclockwise directions.
15. known as the hunter.
20. is the power of a star.
22. displays little movement in the sky.