6 ms·

is it possible that it's just on an extreme orbit and we may one day reconnect?

• simonh 9y ago
  We would easily detect a star closer to the Sun than our known stellar neighbours. Any former sibling star further away from us than that would be affected by the gravity of other stars more than by the gravity of the Sun.
  • meric 9y ago
    How far could the star have travelled in 200 million years? I find it hard to think it could be more than a dozen light years away. And the list of stars within, say, 20 light years, is finite.
    • simonh 9y ago
      I think you may be confusing the age of the Sun with the time it takes to complete one galactic orbit. The sun is more than 4 billion years old while 200m years is a bit less than the period for one orbit of the Galaxy (225-250 my). The Sun has completed more than 20 orbits in its lifetime. Even a 0.1% difference in galactic orbital period between the sun and it's twin would put them 3,000 light-years apart by now.
• wruza 9y ago
  What a sunny day it would be.