Measure the diameter of the Sun The Sun moves across the sky at a constant rate because of the rotation of the Earth. By measuring how fast the Sun moves you can work out how big the Sun appears in the sky. All you need are some household items and about 20 minutes on a sunny day.
The Scale of the Solar System Discipline: Education Many images of the solar system do not do justice to how small the planets are relative to the Sun, or how distant they are from the Sun and each other. The solar system is really mostly empty space. The Toilet Roll Solar System activity helps give an idea of the relative distances between the planets. This Powers of Ten Demonstration shows relative sizes and distances by zooming out.Tags: planetsSun
The Sun Discipline: Education Sun Facts:The Sun is the star at the center of our solar system, and is by far the largest member with a thousand times more mass than all the planets, moons, asteroids and comets put together. The Sun itself is a very typical G-type, main sequence, Population I star. The average distance between the Sun and the Earth is 1 AU or 149,598,000 km.Tags: Sunsolar
