Planets, stars, and meteors are all celestial objects, but they differ in terms of their characteristics and properties. Here's a brief explanation of each:
Planets: Planets are large, celestial bodies that orbit around a star (usually a sun) and do not produce their own light. They are spherical or nearly spherical in shape and are categorized as part of a solar system. Planets are composed of various materials, including rock, metal, and gas, and may have atmospheres. In our solar system, we have eight planets, including Earth, Mars, Jupiter, and Saturn.
Stars: Stars are massive, luminous spheres of hot plasma that emit their own light and heat. They are formed from clouds of gas and dust in space, primarily composed of hydrogen and helium. Stars undergo nuclear fusion, where the immense heat and pressure in their cores cause hydrogen atoms to fuse together to form helium, releasing vast amounts of energy. This energy generation is what makes stars shine. Our sun is an example of a star, and it is the closest star to Earth.
Meteors: Meteors, also known as shooting stars, are small celestial objects that enter the Earth's atmosphere from space. They are typically remnants of asteroids or comets. When a meteoroid (a small rocky or metallic object) enters the Earth's atmosphere, it heats up due to friction and creates a streak of light, known as a meteor or shooting star. Most meteors burn up completely before reaching the Earth's surface, but if any fragments survive the atmospheric entry and land on the Earth's surface, they are called meteorites.
In summary, planets are large bodies that orbit stars, stars are luminous spheres that emit their own light and heat, and meteors are small objects that enter the Earth's atmosphere and create visible trails of light.