Planets & Stars
Across
- 3. Seems to be on its side due to axial tilt.
- 7. Used to determine the distance to close stars.
- 8. A body in the solar system that orbits the sun and can share their orbits with other bodies.
- 11. A ring shaped cloud of gas and dust.
- 13. A larger unit of distance.
- 15. It falls through the earth’s atmosphere; also called a shooting star.
- 16. He introduced the geocentric model.
- 18. The two main parts of a ___ are the head and the tail.
- 19. A ___ galaxy looks like a smooth glowing disk or flattened sphere of stars; it is the largest type.
- 21. Brightest of all the planets.
- 23. Planet that is farther from the sun than the earth.
- 24. The largest SSSB and can be seen from Earth through a telescope.
Down
- 1. A strange object so massive and dense that its intense gravity prevents even light from escaping.
- 2. He proved that a planet's orbit is an ellipse.
- 4. A ___ galaxy has dusty arms loaded with stars that twist away from the center like a pinwheel.
- 5. Was predicted to exist before it was discovered.
- 6. Is a terrestrial and a superior planet.
- 8. It is used to explain the gravitational effects observed in the universe, but It is not observable.
- 9. A body in the solar system that orbits the sun and only shares its orbit with moon(s).
- 10. A huge, loose mass of billions of stars, dust, and other astronomical objects held together by gravity.
- 12. Located between Mars and Jupiter.
- 14. The scientific study of the origin of the universe.
- 17. It orbits around the sun and cannot be seen from Earth through a telescope.
- 20. Planet that is closer to the sun than the earth.
- 22. Used to determine the distance to distant stars.