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kebo · 02-07-2005, 04:10 PM

just as a side note, a "twinkling" star (you know, the ones that seem to change colors) can sometimes be attributed to the motion of the star causing what is known as the doppler effect. As a star moves towards the earth, the light waves are compressed and the color is shifted toward blue. As it is moving away, the opposite happens and the colors shift toward red. This google has lots of cool info about the doppler effect.
kevin

02-07-2005, 04:10 PM	#8 (permalink)
kebo Tilted Location: reno,nv	just as a side note, a "twinkling" star (you know, the ones that seem to change colors) can sometimes be attributed to the motion of the star causing what is known as the doppler effect. As a star moves towards the earth, the light waves are compressed and the color is shifted toward blue. As it is moving away, the opposite happens and the colors shift toward red. This google has lots of cool info about the doppler effect. kevin __________________ And in knowing that you know nothing, that makes you the smartest of all. - Socrates (469 BC - 399 BC)