In this case, the magnet is at the galactic core which is about 8.33 kilo-parsecs or 27,000 light-years or 1,590,000,000,000 miles away.
That isn’t close. No cigar.
The galaxy’s magnetic field is about 0.000 000 002 Tesla at the core, and about 0.000 000 001 Tesla way out here.
The earth’s magnetic field is about 0.000 065 Tesla.
Knock off all the zeros, and you’ll find the earth’s field is about 32 THOUSAND TIMES STRONGER that the “huge magnetic field of the galaxy”.
Like the earth’s field, there is no change in direction, and no measurable change in the strength of the galactic magnetic field should you walk across the magnetic equator.
well that’s not what I heard
:P