PDA

View Full Version : Relationship between Altitude and Latitude


Starboy>9000
Sep15-10, 04:26 PM
If you are in the southern hemisphere in winter and the South Celestial Pole has an altitude of 20 degrees, what is your latitude on earth?

Jim1138
Sep16-10, 03:03 AM
The celestial poles do not move much over the coarse of a year. If the celestial pole is 20 degrees above the horizon, you would be at a latitude of 20 degrees.

Philosophaie
Sep17-10, 02:43 PM
sin(alt)=sin(Lat)*sin(delta)+cos(Lat)*cos(delta)*c os(HA)

where:

alt - altitude
delta - Declination
HA - Hour Angle

from:
http://en.wikipedia.org/wiki/Horizontal_coordinate_system