Definition of colatitude in English:
The complement of the latitude; the difference between latitude and 90°.
- If your co-latitude plus the declination of the star is greater than zero, then it will rise above your horizon at least sometime during the year.
- Thus the co-latitude of 52 is 90-52 = 38 degrees.
- The greatest departures are for beams lying near the limit of our co-latitude range.