For centuries poeple have relied on the North Star, or polaris for navigation. It is the most common navigation method, to follow the North Star if ever lost right? Well what most people dont know is that the Polaris is not very bright, it even changes its brightness from time to time. Talk about confusing!! The north star could easily be mixed up with any other star including Cephris THE brightest star in the Milky Way Galaxy. The North Star is always moving to! The earth wobbles on its axis so much, that when you look in the sky tonight, and see the North Star you have to wait 26 thousand years to see it that exact way again!! Crazy!!
The Magnitude Scale is a scale that states the brightness of a star from 1 to 6 1 being the brightest 6 being the dimest. The difference is that 1 is 100 times brighter than 6! This cale is called the traditional scale. Ptolemy developed the first one which would be the historical scale. With the historical scale apparent magnitudes are what show the actual difference in the luminosity.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment