[Lonely Bull]

Is one supposed to face Mecca on a rhumb line or on a great circle?

I've heard of controversy over the proper direction, like here in North America where the two methods diverge by a bit.

[DUMBGRUNT]

Some Muslim groups in North America take the rhumb line to Mecca (southeastwards) as theirqibla (praying direction) instead of the traditional rule of the shortest path, which would give a northeastward direction from the Eastern USA[citation needed].

http://en.wikipedia.org/wiki/Rhumb_line