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Across 4. a group of stars that form a shape or line 6. invented a new method to find asteroids in 1891 7. the big dipper is a part of this 8. a humongous ball of gas floating in space 9. most famous constellation

Down 1. a dark hole that sucks in anything that comes into contact with it 2. an Italian astronomer 3. the most helpful records to look at when trying to find constellations 5. what humongous stars experience when they die