Quote:
|
Originally Posted by g__day
I used two compasses, both gave readings for 170 (I treat Celestial South in Sydney as 11 degrees East of magnetic South). I also roughly checked where the crux and two points intersect as a rough double check, and did a 20 mintue drift track on Jupiter and adjusted to improve. It wasn't perfect but it should be within 5 degrees.
|
Hi
The wording is correct it is my very rusty navagation skills. So you are correct by saying True South is 11 Degrees east of magnetic south.
Your understnading is correct about finding true south.
The magnetic delination or magnetic north in Sydney is moving in an easterly direction. Currently magnetic north is about 13 Degrees East of True North, therefore True north is 13 degrees west of Magnetic North. True south will be 13 degrees East of magnetic south. See diagram. If I am wrong "OOOOp's" which I was before correcting the post
so sorry for the confusion
.
Using Crux and the Two Pointers to find due south is a very good way to get rough polar alignment. Using drift is also a good idea as well.