Unanswered Questions

54 questions with no upvoted or accepted answers
6 votes
0 answers
111 views

How to calculate the expected rotational speed of a star

I am working on fictional stars, and I want to have as many points about them as I can, and most things I found relatively easy, except for rotational speed. I am not sure exactly how to find at what ...
5 votes
0 answers
198 views

Circulation cells and köppen climates of my world

This world’s average surface temperature is 42°c. Has a day length of 12 hours and 5 minutes. Has an obliquity of 87°. And, has a mainly oxygen/nitrogen atmosphere that is 4.76 the pressure of Earth’s ...
4 votes
0 answers
105 views

How magnitude affects angular diameter/resolution

Let's say you look at two relatively dim stars in the night sky. They are close to each other, but they are far away enough that you can distinguish one from the other. But what if one of them is much ...
4 votes
2 answers
220 views

Biped species with trunk evolved to use for locomotion

So currently in my speculative evolution scenario, I have a creature with an elongated trunk that it uses for rock climbing. This species transitions to a savannah like lifestyle and I was wondering ...
4 votes
0 answers
125 views

How would the coastlines of a chemical sea on a planet with extreme winds form?

On one of my pet projects, there is a chemical sea similar to the Black Sea if it had the saline content of Lake Natron; extreme density of chemicals in the soil and from vents. It's about the size of ...
3 votes
0 answers
77 views

How much difference would Alpha Centauri A cause to the climate of a planet about Alpha Centauri B?

Imagine an earthlike planet in the habitable zone of Alpha Centauri B. Call it ACBc (although I am not sure ACBb has been confirmed). When ACA and ACB are closest to one another, they are about 11 AU ...
3 votes
0 answers
104 views

Gas giant ecologies with more realistic weather. Sky anchors

I've always enjoyed stories that explore ideas about life in the clouds of gas giants. The Algebraist by Banks is my favorite. Though one thing that never quite rang true to me about stories like The ...
3 votes
1 answer
198 views

Could these Humanoid/Reptilian shoulders support legs?

The shoulders would combine the humanoid shoulder anatomy, which protrudes out of the body almost like a stalk, with a reptilian position, at the ventrolateral face of the torso. Because of the shape ...
3 votes
3 answers
210 views

How would a planet's (human) life adapt to inconsistent night duration?

I realise this question is rather broad, so I'll do my best to narrow down what I'm looking for as much as possible. The big idea The full daylight cycle on this hypothetical planet is consistent in ...
3 votes
1 answer
308 views

What would weather be like on a smaller Earth that has the same surface gravity?

First, this is my current understanding of things, using the Universe Sandbox. To have the same surface gravity as Earth's on another planet that's smaller than Earth, you would have to increase the ...
2 votes
1 answer
168 views

Are My Ocean Currents Realistic for a Supercontinent?

I followed tutorials online and drew out my ocean currents. However I don’t have a strong grasp on the concept. My world is primarily Earth-like with a retrograde spin and an axial tilt of 174 degrees....
2 votes
0 answers
57 views

Would the atmospheric circulation experienced on my world's high platforms seem to be reversed?

In this world, that rotates in the same direction and at the same rate as Earth, where the land platforms that cover around 10-20% of the world's surface is (magically) suspended at the 1 ATM level, ...
2 votes
0 answers
78 views

Would the rain shadow effect cause this area to be a desert?

The arrows are the wind currents. This would affect this the most. The purple triangles are the mountains. They are similar in height to the Ural Mountains of western Russia.The turquoise area is ...
2 votes
0 answers
109 views

Climate types for large volcanic islands on tidally locked planet

My planet is tidally locked to a red dwarf, which itself orbits a yellow sun like our own. It has roughly the same atmospheric conditions as Earth (perhaps a slightly thicker atmosphere, but not ...
2 votes
0 answers
68 views

Could a paleopteran without a complete exoskeleton fly?

Unlike most insects, paleopterans have wing muscles that connect directly with the wing. Could this musculature be used to let a soft, maggot-like insect fly? The insect is relatively large (around ...

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