Procedure Part A: Determining an object's position in the sky with the "Horizon Coordinate System" 1. In location window (see figure 11) of Stellarium set the location to Fairfax, Virginia and record your latitude and longitude. Set the time to 10 PM the day you do the lab. To do that, open the date/time window (see figure 11) in Stellarium and adjust the time. Record your geographical coordinates below: Latitude: Click or tap here to enter text. Longitude: Click or tap here to enter text. 2. Find the North Star "Polaris" and click on it. When it's in a center of a circle, information about it will appear on the screen in the upper left (see sample in figure 13). What are altitude and azimuth of Polaris? Altitude: Click or tap here to enter text. Azimuth: Click or tap here to enter text. 3. How does the altitude of the North Star compare to the latitude of your set location (Fairfax, VA)? Click or tap here to enter text. 4. Turn on constellation figures, labels and boundaries (see figure 12). List the names of a few constellations you can see from your location: (if you cannot see the name of