All Questions
8
questions
3
votes
1
answer
542
views
Replacing the sun with an type A star (Fomalhaut) in a fantasy solar system where there is an habitable planet
Lets says there is a planet in the goldilocks zone of a type A star (luminosity of 16 and mass of 1.9 (like the star Fomalhaut))
How far would the type A star need to be from the planet and how would ...
- 632
20
votes
2
answers
3k
views
What would the consequences be of a high number of solar systems being within close proximity to one another?
What would the consequences be of a high number of solar systems being within close proximity to one another? I'm mainly interested in the consequences for life on multiple planets. When I say 'close ...
- 353
4
votes
2
answers
927
views
How much heat would a 1km asteroid release into earth's atmosphere?
I am writing a theory for a game that is in an apocalypse. An asteroid is heading for earth and will crash into the earth regardless in this theory. It is 1km in size but due to the YORP effect it has ...
1
vote
1
answer
232
views
What might happen if someone poured 10^40 liters of water onto the sun? [closed]
For reference, a 10^40 liter sphere has a radius of 10 au.
28
votes
5
answers
12k
views
What would the effect be on Earth if Mars disappeared?
What would the effect on Earth be if Mars, in the space of one second, disappeared from the Solar System? Just simply was gone, leaving no residue, and leaving the space where it had been like it had ...
- 690
5
votes
3
answers
656
views
Could a solar eclipse occur just after a lunar eclipse?
Would it theoretically be possible for a solar eclipse to occur within a few days or even a few hours after a total lunar eclipse?
The star, moon, and planet from which the event is being observed do ...
9
votes
2
answers
772
views
Are islands flying in space possible?
There is a system of one star and something like an asteroid belt around it. But the distance between asteroids is much less than usual, with some perhaps within nine kilometers of each other, and ...
- 93
31
votes
4
answers
4k
views
What software can prototype a planetary system?
Is there any software tool for quickly prototyping a planetary system? Ideally this should:
Allow for placement of planets of different sizes and masses around a star.
Allow for examination of the ...
- 1,189