Amazing Facts about Stars

Here are some of the interesting and amazing facts about the stars. 

• There are more stars in this universe than all of the grains of sand on earth.
• The stars can be seen from the bottom of a  well even in day light.
• The Sun is a star, and is made of 70% Hydrogen, 28% helium and 2% metals.  The diameter of Sun is 1,390,000 Kilo meters.
• The distance between Earth and Sun is about 1,50,000,000 Kilo meters but it is not constant.
• The Stars with strong gravity try to become smaller and smaller and finally turn into black holes.
• The stars come in different colors.  The hot stars give blue light and the cool stars give red light.
• All the stars in the Milky Way galaxy revolve around the center of this galaxy once every 200 million years.
• There are nearly 250 billion stars in our galaxy and it is believed that there are 100 billion galaxies in this universe.
• A Comet's tail always points away from the sun.
• A galaxy of a typical size, with about 100 billion suns produces less energy than a single Quasar.
• A Pulsar is a small star made up of neutrons so densely packed together that if one pulsar of a size of a silver dollar landed on earth, would weight approximately 100 million tons.
• The Star 'Alpha Herculis' is 25 times larger than the circumference described by earth's revolution around the sun.