QUOTE(UNDEAD 1 @ 08/19/06 5:11pm)

mike ,question-how come we can all of a sudden see these new planets,stars etc..? when i first heard they found them they dont look any further than the rest of plantes in our solar system. i find it very interesting and both my wife and i were looking through these picks,very cool.
Light travels very fast. These planets are SOO far away it takes thousands of years for the light to reach earth. We can only see things if light is being reflected off the object. Now since the light of some stars have reached earth they go as a new "Discovery" even know they've been around longer than earth. Some stars even burn out or explode but the light is still on it's way to earth so we don't know it exploded years after it did.
Also, Some stars burn brighter than others. So a star that is sooo far away but burns so bright will appear to be closer to earth than others. Even though the closer star will be dimmer making it look far away.
I think this is the order of hottest/brightest, goes by the color of the star. In order of weakest to strongest.
Orange/Yellow (The sun)
Red
White
Blue
Take a lighter and look at it. The orangeish yellowish is at the top. Then white and blue at the bottom.
Am I a nerd you say? No, just payed attention to the Astronomy section of my science book in 7th grade.