Across
- 3. seventh smallest planet in solar system
- 5. An object that orbits around a larger one.
- 7. group of stars which seem to form a recognisable pattern in the sky
- 9. Astronomical unit of length equal to the distance light travels in a vacuum in one year
- 10. small luminous object in the sky
Down
- 1. this constellation is visible from northern hemissphere
- 2. the star that provides light and warmth to the earth
- 4. mass of rock moving around in space
- 6. a star which is 425 light year away and 60000 times brighter than sun
- 8. this galaxy has a dia meter of 100000 light years