CROSSWORD

3. round a star, planet, or moon
6. - the natural satellite of the earth
8. to the distance that light travels in one year
10. System - The Solar System is the gravitationally bound planetary system of the Sun.
11. Year - unit of astronomical distance
13. - a small rocky body orbiting the sun

1. - a small body of matter from outer space
2. - a celestial object consisting of a nucleus of ice and dust and, when near the sun, a ‘tail’ of gas and dust particles pointing away from the sun.
3. - the star round which the earth orbits
4. - a spot or patch that appears from time to time on the sun's surface, appearing dark by contrast with its surroundings
5. - an artificial body placed in orbit around the earth or moon or another planet in order to collect information
6. - a piece of rock or metal that has fallen to the earth's surface from outer space as a meteor
7. - the curved path of a celestial object or
9. - A planet is an astronomical body orbiting a star
10. - a fixed luminous point in the night sky which is a large, remote incandescent body like the sun.
12. - a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.