- #1
Hainted
- 3
- 0
I'm working on a SF story that takes place on Binary Planets orbiting a single star. I've worked out their mean distance from each other (702,904.853 km) from their star (167,323,260 km or 1.1 AU) and their orbits around the common barycenter(48 days), and the parent star(432 days). For simplicity's sake they are identical to Earth in terms of mass, and size, but the arrangement still leaves a lot of questions.
1.A full "moon" on each world would be significantly brighter (8Xs brighter) but how long would it last? 5 days? 6? For reference would it be like dusk or dawn or almost daylight?
2. Tidal actions. Would the oceans and other large bodies of water have dramatic tides and waves or would the presence of a body of equal mass cause almost no tidal action?
3.Satellites. I'm not sure the system could support a natural satellite, but artificial satellites and space stations would they have their orbits affected by the presence of such a large object so close?
4.Eclipses. I'm sure they would happen with some regularity, like once a month, but would they be more extreme in terms of duration, or amount of light blocked?
5.View. At twice the distance, but more than double the size of the Moon, we could see our twin, and it's continents, weather patterns and major features, but how soon could we detect intelligent life? Would we be able to look up and see the lights of large cities when the twin was in eclipse? or would it take picking up a radio signal to confirm life?
I'm sure there's more, but that's all I got for now.(and I'm going for Plausible so far end of the curve works for me)
1.A full "moon" on each world would be significantly brighter (8Xs brighter) but how long would it last? 5 days? 6? For reference would it be like dusk or dawn or almost daylight?
2. Tidal actions. Would the oceans and other large bodies of water have dramatic tides and waves or would the presence of a body of equal mass cause almost no tidal action?
3.Satellites. I'm not sure the system could support a natural satellite, but artificial satellites and space stations would they have their orbits affected by the presence of such a large object so close?
4.Eclipses. I'm sure they would happen with some regularity, like once a month, but would they be more extreme in terms of duration, or amount of light blocked?
5.View. At twice the distance, but more than double the size of the Moon, we could see our twin, and it's continents, weather patterns and major features, but how soon could we detect intelligent life? Would we be able to look up and see the lights of large cities when the twin was in eclipse? or would it take picking up a radio signal to confirm life?
I'm sure there's more, but that's all I got for now.(and I'm going for Plausible so far end of the curve works for me)