crossword puzzle

3. Cassiopeia, was a vain and boastful wife of king cepheus of ethiopia.
6. magnitude, astronomers describe the actual brightness of a star.
8. Parsec, the standard unit of distance
12. Draco, is always visible in the northern hemisphere but not in the southern Hemisphere.
13. Star sign, one of the 12 zodiac signs that the sun is in on the birth date.
14. patterns of stars seen in the sky.
16. Ursa Major, also known as the big bear.
17. constellations, constellations that move counterclockwise directions.
18. the difference in two solar calendars is caused by an astronomical precession.
21. Rigel, a young blue white star and one of the most luminous of all stars.

1. is the measuremnt of stars
2. Giant Stars, those with a mass of more than 10 times higher than that of our sun.
4. is the power of a star
5. are created when materials in the disk around a preexisting star begins to condense around a rock.
7. Shift, stars seem to shift their positions against the farther stars.
9. one of the prominent star patterns in the sky. Known as the 'Hunter'.
10. plane, is the imaginary line traced by the sun in the sky.
11. Axis, apparent motion occurs due ro the rotation of the earth.
12. stars patterns that have been discovered but not been officially identified as a constellation.
13. Hercules, a constellation named after the greek hero Herakles.
14. body, an opaque object that emits thermal radiation.
15. Polaris, displays very little movement in the sky.
17. Betelgeuse, a red star that doesnt shine wity a steady light as it expands.
19. formed when a gas cloud out in the nebula or other region of interstellar space.
20. Equatorial constellations, lie on the other side of the celestial equator.