Science Vocabulary Crossword

This printable crossword puzzle on the topic of Astronomy & Space has 13 clues. Answers range from 5 to 23 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

The magnitude of a celestial object.
A unit of a measurement equal to 149.6 million km.
The strength and vitality required for sustained physical and mental activity.
A unit of astronomical distance equivalent to the distance that light travels in a year.
The intrinsic brightness of a celestial object.
Any star that is fusing hydrogen.
A fixed luminous point in the night sky.
The temperature at which a black body would emit radiation of the same color as a given object.
The range wavelengths or frequencies over which electromagnetic radiation.
A star system of three or more stars that are bound together.
A star system consisting of two stars orbiting around their common barycenter.
A unit of distance used to express the size of stars.
The magnitude of celestial object.