Across
- 2. The dark central part of a sunspot.
- 3. Either of the two days of the year on whichneither hemisphere is tilted or away from the sun.
- 5. The part of a shadow surrounding the darkest part.
- 6. A streak of light in the sky produced by the burning of a meoroid in Earth's atmosphere.
- 8. The blocking of sunlight to Earth that occurs when the moon is directly between the sun and Earth.
- 10. The blocking of sunlight to the moon that occurs when Earth is directly between the sun and the moon.
- 11. One of the different apperant shapes of the moon as seen from Earth.
- 13. The force by which a planet or other body draws objects toward its center.
- 17. An object that orbits a planet
- 18. The action of rotating around an axis or center.
- 19. The path of an object as it revolves aroung another object in space.
- 20. A pattern or grouping of stars that people imagine to represent a figure or an object.
- 22. A chunk of rock or dust 9n space, generally smaller than an asteroid.
- 23. The tide with the least difference between consecutive low and high tides.
- 25. A system of organizing time that defines the beginning, length, and divisions of a year.
- 26. A ball of hot gas, primarily hydrogen and helium, that undergoes nuclear fusion.
Down
- 1. The scientific law that states that every object in the universe attracts every other object.
- 4. An object that orbits a star and is large enough to become rounded by its own gravity.
- 7. The alternate rising and falling of the sea, usually twice in each lunar day at a particular place, due to the attraction of the moon and sun.
- 9. A large round pit caused by the impact of a meteoroid.
- 12. The partial or total blocking of one object in space by another.
- 14. When the sun reaches its highest or lowest point in the sky at noon, marked by the longest and shortest days.
- 15. An imaginary line that passes through a planet's center and its north and south poles, about which the planet rotates.
- 16. The curved path of a celestial object or spacecraft around a star, planet, or moon, especially a periodic elliptical revolution.
- 20. A loose collection of ice and dust that orbits the sun, typically in a long, narrow orbit.
- 21. The tide with a buldge in the middle and arms that spiral outward in a pinwheel pattern.
- 24. Dark, flat areas if the moon's surface formed from huge ancient lava flows.