Linked Questions

35 votes
7 answers
4k views

How to create an annual celestial event for a world

Yesterday while Green, Andy and I were recording new episodes for the podcast we stumbled upon a bit of a problem that we need someone with physics/astronomy knowledge to help out with. We want to ...
James's user avatar
  • 32.9k
19 votes
4 answers
754 views

Making doomsayers right - a moon(s), planet alignment that matters

Considering our topic challenge, and the fantastic eclipse last Sunday a question came to me. Could there be a stable (relatively speaking) planetary system where a(n) eclipse/alignment would ...
James's user avatar
  • 32.9k
7 votes
3 answers
4k views

Season cycle that would occur on a habitable planet that orbits two suns?

If there's a habitable planet that orbits two suns like the above orbital route, what would possibly occur on that planet? Would it have two yearly seasonal cycle (compare to earth)? Would it be ...
Hariz Rizki's user avatar
  • 1,784
7 votes
1 answer
1k views

Is this circumbinary planet set up in a stable manner?

This is the ideal set up for my solar system: EDIT It's been pointed out that this is not a stable set up, so I want to clarify that everything in this set up can be changed at will to fit my planet. ...
Zac Walton's user avatar
6 votes
3 answers
977 views

Are two Earth-Like planets able to be in the same system while sharing five habitable moons between them?

What I want is to know if I could have seven Earth like (What I mean by this is having an Earth-like atmosphere and climate, in this scenario size doesn't matter and nor does gravity) planets in the ...
Mendeleev's user avatar
  • 1,997
5 votes
3 answers
585 views

Can this planetary system remain stable?

Before we begin, this system is created by aliens, and all orbits are on the same plane. These orbits are similar to earth's in shape. So, none of this has to occur naturally it just has to be stable ...
Xandar The Zenon's user avatar
5 votes
1 answer
203 views

Designing a binary asteroid pair

I am interested in building a little world involving a very realistic asteroid pair, orbiting each other, and would really appreciate some help with numbers and science for this. I would like two ...
Innovine's user avatar
  • 6,084
5 votes
1 answer
625 views

Would this simplex ternary system be stable?

I'm trying to make a trinary star system but I'm not sure how it would work. The primary star is an M0Ve star (red dwarf flare star). The orbits of the other two stars are slightly more complicated. ...
Pyrania's user avatar
  • 646
4 votes
2 answers
246 views

Is this planetary system stable?

The host star has a mass of 0.90 M$_\odot$ I'll refer to this star as Helios. I'll refer to the planets as Helios One, Helios Two, etc. Helios One is 0.55 M$_{\oplus}$ and orbits at 0.75 AU. It's ...
Stephanie's user avatar
  • 2,319
2 votes
2 answers
392 views

Two-moon question [duplicate]

I want two moons in my novel's new world, but hope to have minimal changes in tides, etc. Would it be possible to have a very small moon that doesn't wreak havoc on nature? Also, is it possible for ...
RL George's user avatar
2 votes
1 answer
522 views

How could a TINY Second Moon minimally affect Earth? [duplicate]

So I found this site through this other question asking generally about what Earth would be like with two moons. However, these responses, like pretty much everything else I've been able to find ...
lilywin's user avatar
  • 29
1 vote
1 answer
864 views

World with 3 moons [duplicate]

I'm writing a story set in a world with 3 moons and I have a couple of questions about how that would work. I understand that the tidal patterns would be significantly different than Earths and I'm ...
Benjamin's user avatar
  • 444
1 vote
1 answer
312 views

If earth had another moon and rings? [closed]

I know this is probably a lousy question, and I'm sorry if it is. What if Earth had another moon closer than Luna and rings in between the two moons? How would Earth's culture and environment be ...
Geoplayer123 's user avatar
0 votes
1 answer
1k views

Planet with two moons and rings? Is it possible?

So, I'm creating a jungle world that orbits a K class star (aka orange dwarf star), and is the second planet in the system. Now, I have the planet having two moons: one that is similar to our moon (...
SCPilot's user avatar
  • 837