Astronomy quiz 4 Crossword
               
               
               
               
               
               
               
               
               
               
               
               
               
 
 
Down: 1) To elements combine to release energy 2) A measurement of roundness. Ranges from 0 to 1 3) The path a planet takes around the sun Across: 4) Any object in space5) A ball of burning gas 6) How bright a star is
 

 

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