01:750:109 Lecture Notes - Lecture 7: Celestial Sphere, Celestial Equator, Angular Diameter
19 Oct 2018
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Document Summary
Angle corresponds with latitude of your location. Way we see the stars moving related to your position on earth (latitude) When star travels from below the horizon to observable setting, the star is rising. Stars rise in east and set in west. At north pole, the north star is located at the zenith (90 degrees). Only see stars for a few months, rest of years, have twilight or the sun) At equator, no stars are circumpolar, north star lies in horizon. Project the coordinate system on earth onto the celestial sphere. Celestial sphere is centered on the earth. The north celestial pole corresponds to the extension of the north pole. The south celestial pole is the opposite point in the sky to the north celestial pole. Celestial equator is the extension of earth s equator. North pole - horizon coincides with celestial equator. Equator - get to see the largest portion of the sky.
