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Need help with tricky cosmology
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<blockquote data-quote="Andor" data-source="post: 3273504" data-attributes="member: 1879"><p>While it's true that stars shift over geologic time, and planets move quickly, it's also true that the ancient definition of planets was 'Star the moves' and that's all that was known about them. In any event this is a magical world and you can define things to work however you want them to work. </p><p></p><p>So if I understand what you want, the sky contains 3 different types of objects. </p><p></p><p>First the stuff of the lower firmament. This is moons, planets, asteroids, gods, shipwrecks, glowey star krakens, what have you. These objects probably seem to move.</p><p></p><p>Second the stuff of the Upper Firmament. These are the white stars of the local transative plane and remain fixed in the sky, or at least have a fixed pattern.</p><p></p><p>Third the stuff of the Outer Dark. These are the distant firmaments of the demiplanes and appear as twinkling multicolored stars. These move, each at their own speed and in it's own direction. (Yes, to move at visible speed a distant star would have to be travelling at ludicrous speed, but this is fantasy and the gods have never heard of einstein, so screw it.)</p><p></p><p>So for local navigation we have our handy Astroglobe. It has two spheres, and possibly some represention for the lower firmament too. Each plane has it's own astroglobe showing it's local geography and star field. For planar navigation we're back to Olgra's orrey with each globe actually being an astroglobe of a different demi-plane. </p><p></p><p>So now where a Demi-star is in the sky also shows where you are in <em>it's</em> sky thus allowing you to know where in that plane your portal will reach. (Assuming your Planar Orrey is calibrated correctly of course.)</p><p></p><p>How's that?</p><p></p><p>Incidently, for more imagery appropriate to this sort of thing you should read <em>Tomlinson</em> by Kipling. You can find it <a href="http://www.poetryloverspage.com/poets/kipling/kipling_ind.html" target="_blank">here.</a></p></blockquote><p></p>
[QUOTE="Andor, post: 3273504, member: 1879"] While it's true that stars shift over geologic time, and planets move quickly, it's also true that the ancient definition of planets was 'Star the moves' and that's all that was known about them. In any event this is a magical world and you can define things to work however you want them to work. So if I understand what you want, the sky contains 3 different types of objects. First the stuff of the lower firmament. This is moons, planets, asteroids, gods, shipwrecks, glowey star krakens, what have you. These objects probably seem to move. Second the stuff of the Upper Firmament. These are the white stars of the local transative plane and remain fixed in the sky, or at least have a fixed pattern. Third the stuff of the Outer Dark. These are the distant firmaments of the demiplanes and appear as twinkling multicolored stars. These move, each at their own speed and in it's own direction. (Yes, to move at visible speed a distant star would have to be travelling at ludicrous speed, but this is fantasy and the gods have never heard of einstein, so screw it.) So for local navigation we have our handy Astroglobe. It has two spheres, and possibly some represention for the lower firmament too. Each plane has it's own astroglobe showing it's local geography and star field. For planar navigation we're back to Olgra's orrey with each globe actually being an astroglobe of a different demi-plane. So now where a Demi-star is in the sky also shows where you are in [i]it's[/i] sky thus allowing you to know where in that plane your portal will reach. (Assuming your Planar Orrey is calibrated correctly of course.) How's that? Incidently, for more imagery appropriate to this sort of thing you should read [i]Tomlinson[/i] by Kipling. You can find it [URL=http://www.poetryloverspage.com/poets/kipling/kipling_ind.html]here.[/URL] [/QUOTE]
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