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vorropohaiah
02-19-2013, 10:40 AM
I'm trying to determine an exact antipode for the following coordinates: 85733N 1520340E

Am i right in thinking the antipode to that is: 85733S 275620W

thanks :)

Eochaid
02-19-2013, 11:55 AM
Yep. The formula is
new latitude = - old latitude
new longitude = 180 + old longitude = - (180 - old longitude)
(and a - in front means S becomes N and W, E, and conversely).

Cheers!

vorropohaiah
02-19-2013, 12:32 PM
thanks for that :)