The parallel defines part of the border between Libya and Sudan.
[1] Within Sudan it defines the border between the Northern and North Darfur states.
In this case an angle larger than 90° means that the culmination takes place at a maximum altitude of 86.56 degrees in the opposite cardinal direction.
In the northern torrid zone, the Sun remains in the south during winter, but can reach over the zenith to the north in midsummer.
Starting at the Prime Meridian and heading eastwards, the parallel 20° north passes through: