The Kansas -> Magellan Jump Hole is below the system plane. It's at the southern edge of the asteroid field in the north-west corner of the system.
The Magellan -> Kansas Jump Hole is not very difficult to find. Simply fly south from the Magellan -> California Jump Gate and you should be able to find it.
Quote:i've tried with adv cargo scaner and advanced deep scaner 17km range but nothing on scan!
Not confirmed info: This might be worth mentioning, that discovering solar objects isn't dependant on your scanners, you will have them appear on the map when you're roughly 10K away.