This printable crossword puzzle on the topic of Astronomy & Space has 10 clues. Answers range from 6 to 12 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
The study of the universe
A collection of stars, dust and gas bound together by gravity
This unit is the average distance between the earth and the sun
an Instrument that collects electromagnetic radiation from the sky and concentrates it for better observation
a telescope that uses a set of lens to gather and focus light from distant objects
Atelescope that uses curved mirrors to gather and focus light from distant objects
the motion of a body that travels around another body in space, one complete trip along an orbit
the point in the orbit of the planet at which the planet is closest to the sun
the point in the orbit of a planet that it is farthest from the sun
the moment when the sun appears to cross the celestial equartor