Across
- 4. moon phase that is more than half full
- 5. the action or process of rotating on or as if on an axis
- 6. cloud of superheated gases and other elements formed by the explosive death of a massive star
- 7. major grouping of stars that forms a relatively narrow band when plotted on Hertzsprung-Russell diagram
- 9. the sun and moon are directly in line with the earth and their gravitational pulls reinforce each other
- 10. Graphic representation of the surface features of a place or region on a map
- 11. largest known stars that consume helium in their core
Down
- 1. the action by a celestial body of going round in an orbit or elliptical course
- 2. theory that Earth's outer shell is divided into several plates
- 3. phase occurring between full moon and new moon
- 8. when the sun, earth,and moon form a right angle and the gravitational pull of the sun counteracts the pull of the moon