Astronomy Crossword
                             
                             
                             
                             
                             
                             
                             
                             
                             
                             
                             
                             
                             
                             
                             
                             
                             
                             
                             
                             
                             
                             
 
 
Down: 1) an 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.2) the action of rotating around an axis or center3)  a physical quantity corresponding to the amount of rotational motion of an object, taking into account how fast a distribution of mass rotates about some axis. 4) the point in the orbit of a planet, asteroid, or comet at which it is closest to the sun5) deviation of a curve or orbit from circularity.8) he center of mass of two or more bodies, usually bodies orbiting around each other, such as the Earth and the Moon. 10)  a forcible overthrow of a government or social order in favor of a new system.11) a periodic variation in the inclination of the axis of a rotating object.14) an imaginary line about which a body rotates. Across: 6) a secondary effect of the force of gravity and is responsible for the tides.7) a region around a magnetic material or a moving electric charge within which the force of magnetism acts.9) he slow movement of the axis of a spinning body around another axis due to a torque (such as gravitational influence) acting to change the direction of the first axis. It is seen in the circle slowly traced out by the pole of a spinning gyroscope.12) the lowest velocity that a body must have in order to escape the gravitational attraction of a particular planet or other object.13) Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it.14) the point in the orbit of a planet, asteroid, or comet at which it is furthest from the sun.
 

 

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