Stars

3. an expert in or student of astronomy.
7. the curved path of a celestial object or spacecraft around a star, planet, or moon, especially a periodic elliptical revolution.
9. an optical instrument designed to make distant objects appear nearer.
10. brightest star in a constellation.
12. the region of the atmosphere and outer space seen from the earth.
13. a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.
14. the natural satellite of the earth, visible by reflected light from the sun.

1. a celestial body moving in an elliptical orbit around a star.
2. a group of stars forming a recognizable pattern that is traditionally named after its apparent form or identified with a mythological figure.
4. a cloud of gas and dust in outer space, visible in the night sky either as an indistinct bright patch or as a dark silhouette against other luminous matter.
5. the collection of eight planets and their moons in orbit around the sun.
6. the varying angle that the sun shines on the moon as it orbits the earth.
8. second brightest star in a constellation.
11. the line at which the earth's surface and the sky appear to meet.
12. a fixed luminous point in the night sky which is a large, remote incandescent body like the sun.