Astronomy C1s4 Crossword
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
 
 
Down: 1)  the angle between the orbital plane of the solar system and the actual orbit of an object around the Sun.2)  the orbit of each planet around the Sun is an ellipse with the Sun at one focus.4) the ratio of the distance between the foci and the length of the major axis of an ellipse.5)  the time a planet takes to complete one orbit is related to its average distance from the Sun. 7) a spherical cloud of material surrounding the head of a comet. 8)  the velocity at which a body revolves about another body.9) the slow clockwise rotation of the axis of Earth around a cone, one cycle in about 26,000 years, due to gravitational tugs by the Sun, Moon, and major planets. 10) the speed of an object in a given direction. Across: 3)  the distance an object travels in one unit of time6)  the rate at which velocity changes.11)  the state in which one object’s distance relative from another object is changing.12)  (also called the ecliptic or plane of the ecliptic) a plane formed by the path of Earth around the Sun.13) a line joining a planet and the Sun sweeps out equal areas in equal intervals of time.
 

 

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