ASTR 111 Chapter Notes - Chapter 2: Azimuth, Farthest North, Minute And Second Of Arc
8 Sep 2017
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Document Summary
More than 2,00 stars visible to the naked eye on a clear night sky. Constellation - region of the sky; 88 official constellations cover the celestial sphere. Names and borders of 88 constellations were chosen in 1928 by members of. Lack of depth perception when we look into space. Celestial space - imaginary sphere on which objects in the sky appear to reside when observed from earth. The milky way in our night sky traces our galaxy"s disk of stars - the galactic plane - as it appears from our location within the milky way galaxy. Horizon - boundary that divides what we can see from what we cannot see. Zenith - the point directly overhead, which has an altitude of 90 degrees. Meridian - half-circle extending from your horizon (altitude 0 degrees) due south, through your zenith, to your horizon due north. Altitude - angular distance between horizon and object in the sky.
