A sun is a star that is the center of a planetary system.
A star is considered a sun when it is the central star of a planetary system, such as our own Sun in the Solar System. The term "sun" is typically used to refer to the star at the center of a specific planetary system, providing light and energy to its orbiting planets.
A central star with planets around it is a planetary system or a star system. The central star, often a sun-like star, is orbited by planets that may vary in size, composition, and distance from the star. The arrangement of planets around the central star is known as a planetary or solar system.
The Sun is at the Center of our Solar system. and yes, the sun is a star
A galaxy is the biggest among the three. Galaxies contain billions to trillions of stars, as well as other celestial objects like planets and planetary nebulae. A planetary system refers to a star with its orbiting planets, while a planetary nebula is a glowing shell of gas ejected by a dying star.
The term "central star" usually refers to the star at the center of a planetary system like our Sun in the Solar System. In the context of a galaxy, there isn't a single central star as galaxies are made up of billions of stars, with a supermassive black hole at the center.
its the universe with our planets and moons in it
Yes, the same as your solar system: Sol. Sol is the name of our primary star, hence the terms solar system. The generic term is star or planetary system.
No, a planetary nebula is not surrounded by planets. It is an expanding shell of glowing gas ejected by a dying star, which is usually located in the center. The term "planetary" is a historical misnomer as these nebulae have nothing to do with planets.
the sun
A galaxy is far larger. A planetary system involves one or more planets revolving around a single star. A Galaxy consists of billions of stars.
Jupiter is a member of the star Sol's planetary companions.
A star, or stars.