To build a model solar system, hang small circles representing the planets and sun from a larger circle. There should be eight small circles for the planets and one slightly larger circle in the center, for the sun.Know More
A model solar system is a quick and easy school project. The only supplies required are a large cardboard circle, such as the circle from a frozen pizza, another piece of cardboard, string, scissors, a compass to draw circles and crayons or markers.
To make a model of the solar system, hang circles representing the planets from a larger circle of cardboard. By varying the length of the string and hanging the cardboard planets in orbital circles, the model is even more precise.Full Answer >
A working model of the solar system is called an orrery. This apparatus contains the sun, planets and often their satellites in their correct positions and phases. According to Reference.com, the first such model was made for Charles Boyle, the Earl of Orrery for whom it was named.Full Answer >
The geocentric, or Ptolemaic, model of the solar system is the astronomical model advanced by ancient people to describe the motions of the planets, Sun and moon. This model held that the Earth was the center of the solar system, and the other heavenly bodies orbited around it. Scientists now know that this model is incorrect and that the Sun is at the center of the solar system.Full Answer >
The term "solar system" refers to the sun and all the bodies that are caught in its gravitational field. This includes the eight planets, several dwarf planets, the moons and a variety of asteroids and comets.Full Answer >