3 ms·
> They orbit a common centre of gravity once every 80 years, with a minimum distance of about 11 times the distance between the Earth and the Sun. A.K.A an Ast
by manaskarekar 10y ago
> They orbit a common centre of gravity once every 80 years, with a minimum distance of about
11 times the distance between the Earth and the Sun.
A.K.A an Astronomical Unit: https://en.wikipedia.org/wiki/Astronomical_unit https://en.wikipedia.org/wiki/Astronomical_unit
- geon 10y agoBoth stars are close to our sun in size. The visible area in square-arc-seconds (and thus the brightness) of Beta as seen from Alpha (and vice versa) should be about (1/11)^2 = 0.8 % or about the same as an overcast day on Earth. I think I read that stable planet orbits would be impossible, but I suppose a planet could still have a stable orbit around one of the Lagrange points. Then it should have each star at equal distance, at 90 deg angle, right? If so, it would have 4 phases of daylight - night, Alpha, both suns and Beta.
- mrfusion 10y agoSo is it always changing whixh one of these is closest to us?
- elihu 10y agoHuh; Saturn is about 10 AU from the sun, so that would be like having a second star just past the orbit of Saturn. https://en.wikipedia.org/wiki/Solar_System https://en.wikipedia.org/wiki/Solar_System