star party phase 3 Crossword

This printable crossword puzzle on the topic of Astronomy & Space has 11 clues. Answers range from 6 to 15 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

the nebulosity surrounding a star : a star's shell or envelope of nebulosity.
powered by nuclear fusion in their cores, mostly converting hydrogen into helium and liberating tremendous amounts of energy.
a dying star in the last stages of stellar evolution.
a ring-shaped nebula formed by an expanding shell of gas around an aging star.
is formed when a low-mass star has exhausted all its central nuclear fuel and lost its outer layers as a planetary nebula.
a star that is larger than eight solar masses during its regular main sequence lifetime.
an aging giant star that has consumed its core's supply of hydrogen fuel.
a star that suddenly increases greatly in brightness because of a catastrophic explosion that ejects most of its mass.
the collapsed core of a massive supergiant star
a contracting mass of gas which represents an early stage in the formation of a star, before nucleosynthesis has begun.
a region of space having a gravitational field so intense that no matter or radiation can escape.