The coordinates are X 11, Y 82.
It is Southeast of earth.
She the PRINCESS is on a asteroid being held hostage by Morder
if you mean the planet in the asteroid belt then it is X:11 Y:82
After you beat Fire planet planet,and Jungle planet the princess will be waiting on one of the asteroids in the asteroid belt.
You go to the earth like planet and click on it
Watch a YouTube video
The big red planet that is by spaceships
you don't
it is x:21 y:81 -yepp
She isn't on a planet.she is on a asteroid (if you are talking about astro-knights island)
take them into the black hole