- The star that is closest to the Earth is the sun.
- A Star is a gigantic, glowing ball of plasma.
- Stars are first formed as clouds of dust and gas.
- Stars give off a tremendous amount of energy in the form of light and heat.
- Most stars are between 1 billion and 10 billion years old.
- Stars that have really strong gravity grow smaller over time and eventually turn into black holes.
- The hottest stars give off a bluish light while the cooler stars give off a reddish light.
- Stars seem to twinkle because their light travels through the earth’s atmosphere and the turbulence in the atmosphere affects the way stars are seen.
- All the stars that make up the Milky Way Galaxy revolve around the center of the galaxy once every 200 million years or so.
- The oldest star that has been discovered is HE 1523-0901, which is an estimated 13.2 billion years old.
Download the Star and Constellation Worksheet
This worksheet is free to download and use in the classroom to increase your star and constellation knowledge.Download