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Antipode Visits


Kybra

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This sounds interesting, but I have no idea how to get the new coordinates. I searched a few antipod sites to try and figure it out but can't.  If my home coords are: N42° 08.992 and W074° 37.144, what are the antipode coords??

Pretty simple. Change N to S and subtract 180° from W (or add 180° to E)

You'd be at S42° 08.992 E106° 37.144

Hey thats only 880 NM SW of here we could be there and back in two weeks if you don't mind a sail in the Southern Ocean :)

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Actually Sax's " Longitude Antipode solution is often used as an example when the starting point is in Integer Degrees. You actually have to determine what location is Exactly 180° Degrees away. And you must remember that the numbers are on opposite sides of a Zero Point. One of them is really a Negative Number. And yes, for Latitude just reverse the N and S.

 

E106° 37.144' and W74° 37.144' are 181° 14.288' apart. That an error of 1° 14.288'

 

It would be easier for most people to think of 74° 37.144' as 74.61907°

 

180 - 74.61907 = 105.38093 or 105° 22.856'

 

E105° 22.856' and W74° 37.144' are 180° apart.

 

So the Antipode of N42° 08.992' W074° 37.144' is S42° 08.992' E105° 22.856'

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