Across
- 5. A group of stars forming a recognizable pattern named after its form
- 6. The distance that light travels in a vacuum in one Julian year
- 7. A piece of rock or metal that has fallen to earth from outer space
Down
- 1. A room or building housing an astronomical telescope or other equipment
- 2. A powerful and luminous stellar explosion of a massive star
- 3. A small rocky body orbiting the sun especially between Mars and Jupiter
- 4. A planet that orbits a star outside the solar system