Across
- 1. eclipse in which the sun is obscured by the moon.
- 4. action of rotating around an axis or center.
- 5. branch of science which deals with celestial objects, space, and the physical universe as a whole.
- 10. obscuring of the light from one celestial body by the passage of another between it and the observer or between it and its source of illumination.
- 11. force that attracts a body toward the center of the earth, or toward any other physical body having mass
- 12. tendency to do nothing or to remain unchanged.
- 13. body's relative mass or the quantity of matter contained by it, giving rise to a downward force the heaviness of a person or thing.:
- 16. partially shaded outer region of the shadow cast by an opaque object.
- 18. tide just after a new or full moon, when there is the greatest difference between high and low water.
- 19. 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.
Down
- 2. time or date (twice each year) at which the sun crosses the celestial equator, when day and night are of approximately equal length (about September 22 and March 20).
- 3. or energy as an attribute of physical action or movement.
- 6. time or date (twice each year) at which the sun reaches its maximum or minimum declination, marked by the longest and shortest days (about June 21 and December 22).
- 7. curved path of a celestial object or spacecraft around a star, planet, or moon, especially a periodic elliptical revolution.
- 8. fully shaded inner region of a shadow cast by an opaque object, especially the area on the earth or moon experiencing the total phase of an eclipse
- 9. distinct period or stage in a series of events or a process of change or development.
- 14. imaginary line about which a body rotates.
- 15. eclipse in which the moon appears darkened as it passes into the earth's shadow.
- 17. tide just after the first or third quarters of the moon when there is least difference between high and low water.