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) Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it.3) a region around a magnetic material or a moving electric charge within which the force of magnetism acts.5) deviation of a curve or orbit from circularity.6) a periodic variation in the inclination of the axis of a rotating object.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.10) he center of mass of two or more bodies, usually bodies orbiting around each other, such as the Earth and the Moon. 15) an imaginary line about which a body rotates. Across: 4) the point in the orbit of a planet, asteroid, or comet at which it is furthest from the sun.7)  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. 8) the lowest velocity that a body must have in order to escape the gravitational attraction of a particular planet or other object.11) a secondary effect of the force of gravity and is responsible for the tides.12)  a forcible overthrow of a government or social order in favor of a new system.13) the point in the orbit of a planet, asteroid, or comet at which it is closest to the sun14) the action of rotating around an axis or center
 

 

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