Star Astronomy

By U Learn It | February 21, 2009

Astronomy, like the universe, is a vast subject. Even a subset star astronomy is huge. There are ample phenomenon and objects in just our own solar system to keep someone bust for an entire life time. Some people, then, decide to become experts on the stars.

The closest star we know is our sun, about 94,000,000 miles away from Earth. Consider what the sun feels like on a hot day, imagine how hot it is up close. 98% of the stuff in our solar system is in the sun. That takes into account everything, the rocks, material, even the very large Jupiter and Saturn in all their moons. The sun could hold over 1.3 million Earths. The nuclear reaction at the Sun’s core comes from pressure 340 billion times that at sea level on earth and temperatures of over 27,000,000