Timeline for Can a planet have a warm, tropical climate both at the poles and at the equator?
Current License: CC BY-SA 4.0
14 events
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| yesterday | history | edited | casualworldbuilder | CC BY-SA 4.0 |
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| yesterday | history | edited | casualworldbuilder | CC BY-SA 4.0 |
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| Jun 29 at 1:27 | vote | accept | Rhymehouse | ||
| Jun 27 at 21:12 | comment | added | casualworldbuilder | @JasonPatterson I deleted my previous comment cause I couldn’t edit it any longer and what I said previously could be confused. | |
| Jun 27 at 21:02 | comment | added | casualworldbuilder | I’m not talking about having 15°C (Earth’s current average temperature) +20°C increase, I meant just making the planet’s average as a whole 20°C (or a bit more) which would be only +5°C increase. Topography in this case would matter, but I can imagine for OP’s setup, he wants a superhabitable world with lots of warm islands and an atmospheric pressure of 3 atm combined with an average surface temperature of 20-25°C (or at most, 30°C) would give him the ‘palm tree planet’ trope he’s looking for. | |
| Jun 27 at 20:11 | comment | added | Jason Patterson | @casualworldbuilder The average surface temperature of the equator is under 90°C on Earth right now. If you increase the average temperature of the planet by 20°C, then sure, you could make the poles tropical, but at the cost of making the middle 60° of the planet unlivable. Insolation matters, plain and simple. | |
| Jun 27 at 13:56 | comment | added | The Betpet | I suppose you could (theoretically) be in a trinary system where you have suns in just the right positions to warm the poles and the equator equally. But I suspect the probability of finding the perfect orbit(s) to maintain that would be miniscule, if it's possible at all. | |
| Jun 27 at 9:36 | comment | added | cconsta1 | Thanks for this informative answer! | |
| Jun 27 at 6:11 | comment | added | Jason Patterson | But even on your graph a pressure of 3 atm yields an equator with an average temperature of ~305K (32°C/90°F) and poles with an average temperature of 265K (-8°C/18°F). It's not as substantial a spread as Earth, but it's still very much tropical/desert equator vs tundra poles. 10 bar gives temperate poles with an average annual temperature comparable to Scandanavia, central Asia, or southern Canada/northern US. It's not until the 100 bar graph that the poles come up to sub-tropical temperatures, comparable to Florida or most of Australia. | |
| Jun 26 at 17:36 | history | edited | casualworldbuilder | CC BY-SA 4.0 |
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| Jun 26 at 16:41 | history | edited | casualworldbuilder | CC BY-SA 4.0 |
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| Jun 26 at 16:41 | comment | added | casualworldbuilder | Yes, hold on let me clarify that | |
| Jun 26 at 16:41 | comment | added | controlgroup | to clarify: by 2/3 atm you mean 2 or 3 atmospheres, not 0.666 atmospheres? | |
| Jun 26 at 16:39 | history | answered | casualworldbuilder | CC BY-SA 4.0 |