Celestial Bodies

[Fred Brackin]

Originally Posted by Johnny Angel

In one world concept the world was between two suns which were both of equal size and equal mass. Instead of orbiting around a sun like our world does, the two equal sized suns held the world in place, and it just sort of spun in place. This also meant that there was no such thing as night as we understand it; the darkest part of the day was more akin to dawn or dusk whenever a side of the world would be spun away from being directly facing either of the two suns.

Sorry, probably won't work without turtles and elephants or other sorts of divine intervention.

Maybe if it was absolutely at the center of mass for the two sun system.....but it'd never form there in the first place. Even if it was captured somehow it's not likely to stay intact.

Well, maybe if the suns are pretty distant from each other. They probably need to be to make your temperature situation work out. If you just doubled the Earth;'s amount of solar energy Bad Things would happen.

The result would need to be be more like two dim lights in the sky all the time. Instead of 2 dawns it might be more like perpetual twilight.

The usual habitable binary hypothesis is more like "planet orbits one Sun like usual. The other is at least as far away as Saturn and doesn't effectively contribute daylight.".

It might be possible to have the suns orbiting each other and the planet be in one of the 4th or 5th Trojan spots. That would have the planet in a stable orbit trailing 60 degrees behind one of the suns in its' orbit.

Multiple moons are a lot easier but note that small moons like Mars' are too small and dim to be very visible. Any close moons would probably also be in the planet's shadow cone a lot of the time (like lunar eclipse only more so) and therefore blacked out.