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Originally Posted by Agemegos
Have you calculated the Habitability scores and Dayside temperatures of a lot of randomly-generated tide-locked worlds? I've had quite a lot of them drop out of my generator, and I don't like the look of them. The ones with high Habitability scores have uninhabitably hot day sides.
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Well of course your random generator produces a huge number of tidelocked worlds with much higher average temperatures than the by the book world generation technique. When I randomly generate systems for smaller M-Class dwarfs, on the rare occasion when I actually get a stanard-sized world in the habitable zone they are always on the cold side of things. I've never gotten a "normal", much less a "warm"
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The thing that brought this issue to the forefront of my mind just now is trying to generate a society (and adventure) for Gliese 370 II "Persatuan", the highest-Habitability tide-locked world in Central Sector of my randomly-generated universe. It has an average temperature of 27 C, and a calculated dayside temperature of 67 C.
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That's a bit on the warm side. I'm guessing that you rolled really high on hydrosphere.
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I don't understand this. What do you mean by "East Pole"? The subsolar point? The intersection of equator and terminator east of the subsolar point?
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Why would the intersection of the equator and the terminator be east of the subsolar point?
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What is it in Space that makes you think that latitude makes a significant difference? Did I miss something big, or are you bringing in more recent discoveries from other sources?
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The average temperature is roughly the seasonal average at a latitude of 45 degrees. Obviously it will be colder on average as you approach the poles and warmer as you get closer to the equator. But in the case of a tidelocked worlc that will actually be a roughly circular band of tolerable temperature all around the sun-side. Frankly I didn't didn't consider the possibility of a warm or even tropical average temperature sun locked world because it's apparently impossible to randomly generate them using the unmodified gurps method.
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There is still a lot to find out about the planets of M and late K -type dwarf stars — twenty years ago it was still not clear that they were common at all! — but I'm not really holding my breath on the discovery of planets habitable by humans in the system of anything cooler than about K5.
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Oh, honestly M0s aren't that bad.