Dear God....
What does the sun going around have to do with the direction the arrow points?
Take a picture of your flat Earth....
Draw a dot on the edge of Antarctica straight south of Australia.
Draw a stick figure just southward of that dot. If that stick figure is holding a compass and takes a heading pointing straight from the compass towards the north pole it will say he is facing south because he is pointing straight at the south pole.
Now grab an orange.
Draw antarctica on the orange along with Australia.
Figure out where the dot for the south pole is, and the dot for the magnetic north pole is.
Run a skewer through the orange straight from pole to pole.
Draw a stick figure on Antarctica just south of the magnetic south pole.
Look at what his compass reading would say, it would say that south is to his north, and north is to his south.... But if you look at where he is on the orange compared to the poles, from where he is the south magnetic pole is to the north of him, and the North Magnetic pole is wrapping around the orange and up the back side to the South of him...
Eat the orange, it is good for you.