You don't actually "put in" any coordinates, but once you are in space, in the bottom left-hand corner there is a little box that shows you the x and y axis (coordinates). To go to the place you are looking for, you just drive until the x and y axis match up to the paper.
The coordinates are: X: 83, Y: 20
x-73 y-83 x-15 y-15 x-83 y-20
THese are the coordinates to the Fire Planet, up and to the right from Poptropica and the moon. The X-83 indicates a location far to the right in the solar system, and the Y-20 shows that the location is not very far from the "top".
Jungle Planet = X-15 Y-15 Fire Planet = X-83 Y-20 Ice Planet = X-73 Y-83
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The FIRE PLANET is at coordinates X-83 Y-20, up and to the right from the planet Poptropica.
The Fire Planet is at coordinates X-83 Y-20, up and right from the Pewter Moon.
The FIRE PLANET is one of the three planets that the Queen gave you the coordinates to, and it is at X-83 Y-20 (up and to the right from the planet Poptropica).
at these coordinates X:73 Y:83
The coordinates are on the missing page from Mordred's Journal (under his bed). The numbers are X-56 Y-52, and can be entered once a new fuel rod is in the Excalibur. (see related question)
You should have the coordinates given to you by the Queen. Once you have your new spaceship, it is at X-83 Y-20, up and to the right from the planet Poptropica.
In the lower left hand corner of the space is an asteroid belt, in the middle is the astroids is a giant one with the sword on it! The coordinates are (9, 81) x is 9 & y is 81.