Skip to main content

All Questions

Filter by
Sorted by
Tagged with
3 votes
1 answer
148 views

Could you please check my calculation for a habitable binary planet system?

Good day! For the story I have prepared information about the binary planet system. The action will take place on the smaller (minor) of the two planets, which is supposed to be habitable. The ...
4 votes
1 answer
154 views

What are the climatic consequences of existing on a planet with a dense and fairly cold atmosphere?

I am making a non-habitable planet (Name: Xoo-akedar) for my solar system. Despite being close to the star (see characteristics below), it has a dense atmosphere that prevents the heat from the star ...
2 votes
1 answer
129 views

At what approximate distance and what size should binary planets be for a day to be no more than 30-32 hours long?

For the story I'm trying to find a more or less plausible description of the planet. Initially I was considering planet size like Mars or mid-size between Earth and Mars. Аnd this planet is in tidal ...
2 votes
2 answers
242 views

Is it possible for polar nights at one pole to be 8 & 1/2 months long without significantly messing up the climate?

Is it possible for polar nights at one pole to be 8 & 1/2 months long without significantly messing up the climate? The length of polar nights at the south pole from what i know is a week longer ...
4 votes
1 answer
335 views

How would I calculate the greenhouse effect based on atmospheric composition?

Problem: For a known, but hypothetical planet orbiting a celestial body, how would I calculate the surface temperature after greenhouse gases? What I know about the planet as given: Planetary ...
5 votes
1 answer
116 views

How close to a star can be a tidally locked planet so to have moderate temperature on its dark side? [closed]

So, imagine an atmosphere-less planet, tidally locked to a sun-like star. How close to the star can the planet be before its dark side becomes too hot? I imagine that at some point the rocks on its ...
1 vote
3 answers
157 views

Weather among the average tropical coastal regions? (I can't be more specific than this since i lack a map, I apologize) [closed]

I have a super-earth world. The surface of the world is shallower due to extra gravity, so shorter mountain ranges and less ocean depths. The world orbits a binary star system at a distance of the ...
23 votes
4 answers
2k views

How would solar activity change if the Sun was impacted by a planet?

Suppose that a planet whose size was somewhere between the sizes of Mercury and Jupiter impacted the Sun. Would such an event change local stellar activity sufficiently enough and for long enough ...
3 votes
3 answers
818 views

What happens when a tidally-locked planet breaks out of the synchronous rotation?

Say you've got a hypothetical human-colonized planet planet roughly the size and composition of Earth orbiting around an M-class star a third the size of the sun at 0.2 AUs. Due to the proximity, this ...
10 votes
2 answers
1k views

Seasons on a planet that's tidally locked with the smaller star in a dual-star system

Consider a dual-star system, with the distances between S (larger star) and J (smaller star) similar to Sun–Jupiter. A planet P rotates around J on a 90-degree ecliptic and is Earth-like otherwise. ...
15 votes
3 answers
474 views

Planet illuminated by blue-shifted relic radiation

Are there realistic circumstances that a planet would be accelerated (either artificially or naturally) to the speed at which relic radiation becomes so blue-shifted that the planet is illuminated so ...