Stars- are luminous balls of gas The Milky Way contains over 200 billion stars, and enough dust and gas to make billions more. A star can be considered a sun if it's in the center of the planetary system.
Star- A huge ball of gas held together by gravity. The central core of a star is extremely hot and produces energy. Some of this energy is released as visible light, which makes the star glow. Stars come in different sizes, colors, and temperatures. Our Sun, the center of our solar system, is a yellow star of average temperature and size
Star Culster-A group of stars born at almost the same time and place, capable of remaining together for billions of years because of their mutual gravitational attraction
SuperNova-The explosive death of a massive star whose energy output causes its expanding gases to glow brightly for weeks or months. A supernova remnant is the glowing, expanding, gaseous remains of a supernova explosion
SuperNova Remant-"The glowing, expanding, gaseous remains of a supernova explosion."
Variable Star-A star whose luminosity (brightness) changes with time
