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Old August 27th, 2013, 03:59 PM
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Default 567-908

Having only read Adventure 10, I'm left wondering about the primary star around this world.

The world is in the habitable zone.
The world takes 42 years to orbit its star, putting it in Orbit 7 in Travellerspeak.

There are a few ways to interpret this:

1. They're orbiting a type III giant star. Pro: No retcon necessary. Con: Giants last millions of years, not billions: there's not enough time in the hab zone for evolution. Researchers would have to argue loudly over how it's possible. Transplant? Extremely Lucky, Accelerated, Punctuated Evolution? Something else?

2. They're orbiting a smaller star which in turn orbits another star at Orbit 7. Pro: It works. Con: It's a minor retcon, and a bit dodgy of a solution.

3. They're orbiting a G V in orbit #3. Pro: This is astronomically correct for evolutionary purposes. Con: The "42 years" bit is also forced to adapt, perhaps relating to periodic solar activity, since the year length at orbit 3 is, approximately, one Terran year. This also makes 567-908 just another Mars in an Earth orbit. Yawn.

4. Move the orbit so it can be multiplied to reach 42, that also works with an appropriate long-life star. Same general pros and cons as #3. Has significant overlap with #5.

5. Let them orbit a class IV star, perhaps in orbit 6. The same pros and cons apply from #3, but at least the orbit and star is a little more exotic. Has significant overlap with #4.
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