Stars

2. an object that orbits a star, is spherical due to its own gravity. They do not undergo nuclear fusion like stars and are distinguished from other celestial bodies by their clear orbits and spherical shape.
3. A small celestial ball composed of ice, dust, and gas that orbits the Sun in a highly elliptical orbit.
5. The entirety of space, time, matter, and energy, including all the galaxies, stars, planets, and other forms of matter and energy.
7. A massive collection of billions of stars, slowly rotating around its centre of gravity.

1. a luminous sphere of plasma held together by its own gravity, undergoing nuclear fusion in its core. They produce energy and light through nuclear reactions, primarily converting hydrogen into helium. They emit their own light and are the primary sources of light in the universe.
2. A dense ball of dust and gases that has not yet reached a high enough temperature to begin hydrogen fusion and become a star. It will continue to heat up until it reaches about 10 million degrees kelvin.
4. A rocky object, ranging in size, that orbits the Sun. they are remnants from the early formation of the solar system and are primarily found in the belt between Mars and Jupiter. Unlike planets, They are irregularly shaped and are composed mainly of rock and metal.
6. a vast cloud of gas and dust in space. They can be the birthplace of stars or remnants of stellar explosions.