Welcome!
The Cartographers’ Guild is a forum created by and for map makers and aficionados, a place where every aspect of cartography can be admired, examined, learned, and discussed. Our membership consists of professional designers and artists, hobbyists, and amateurs—all are welcome to join and participate in the quest for cartographic skill and knowledge.
Although we specialize in maps of fictional realms, as commonly used in both novels and games (both tabletop and role-playing), many Guild members are also proficient in historical and contemporary maps. Likewise, we specialize in computer-assisted cartography (such as with GIMP, Adobe apps, Campaign Cartographer, Dundjinni, etc.), although many members here also have interest in maps drafted by hand.
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Orbits are elliptical. The body orbited is at one of the foci of the ellipse. If the orbit is close enough to circular to not notice the difference, then the center is where you will find the body orbited (even that's a bit simplified, but this is about making your map work, not a course in celestial mechanics). However, when the orbit is eccentric enough to notice that it is an ellipse rather than a circle, this will not be the case. Compare even the much less eccentric Pluto in this Solar System illustration (taken off Wikipedia; listed as a NASA public domain image). Then look at the really eccentric Sedna. Their orbits are not centered on the sun.
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