Star

1. star: a large, hot ball of gases, which  is held together be gravity and gives off its own light.
2. parallax: the apparent shift in an object's location when viewed from towo position.
3. light-year: the distance light travels in a year.
4. contellation: a number of stars that appears to from a pattern.
5. magnitude: the brightness os a star.
6. nebula: a cloud of gas and dut in space.
7. supernova: a start that explodes.
8. black hole: an object whose gravity is so strong that light cannot escape it.