Astronomy Crossword

2. This planets length of day is most similar to Earths based on the Solar System Data table
4. The left over energy from the Big Bang that is found all throughout the universe is called the cosmic _____________ background
6. On this planet, one year is equivalent to 84 years on Earth! (based on the Solar System Data table)
8. Object that includes everything in space and time
9. Using spectral lines, we are able to tell that galaxies are moving away from us. We call this the ___-______ of galaxies
12. The universe is 13.8 _______ years old
13. Collection of hundreds of billons of stars that are gravitationally bound together
17. The closest planet to the Sun based on the Solar System Data table
19. The hottest star on the Characteristics of a Star graph
20. A massive blue-white star that has temperature of ~10,500 K and is approximately 100,000 brighter than the Sun
22. On this planet, a day would last longer than a year! (based on the Solar System Data table)
23. The furthest planet from the Sun based on the Solar System Data table

1. The only planet that could float in water based on the Solar System Data table
3. Rocky object that orbits around a planet
4. The factor that determines whether a star will become a giant or a supergiant
5. The most dense planet in our solar system based on the Solar System Data table
7. The process that creates a stars energy by combining lighter elements to create heavier elements
10. Collection of rocky or gassy objects orbiting around one or a couple stars
11. Ball of gas and dust that emits light and heat
14. The largest planet in our solar system based on the Solar System Data table
15. The brighest star on the Characteristics of a Star graph
16. The force the pushes the gas in a nebula together to create a ball
18. The theory that attempts to explain the formation of our universe is called the ___ _____ theory
21. Large object that orbits around a Star