Well, there goes the neighborhood -

Alien star system buzzed the Sun

 

BBC News
February 19, 2015

 

An alien star passed through our Solar System just 70,000 years ago, astronomers have discovered.

 

No other star is known to have approached this close to us.

 

An international team of researchers says it came five times closer than our current nearest neighbour – Proxima Centauri.

 

The object, a red dwarf known as Scholz’s star, cruised through the outer reaches of the Solar System – a region known as the Oort Cloud.

 

Full article here

 

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Comments (10)

  1. SEC

    And how did they make that leap?

    February 20, 2015
    1. EZWAYZ

      To determine the trajectory of the star, the researchers needed two pieces of information: the change in distance from the Sun to the star (its radial velocity) and the star’s motion across the sky (its tangential velocity).
      .
      Scholz’s star currently lies 20 light years away – making it a fairly nearby system. But it showed very slow tangential motion for a star this close. This indicated that it was either moving away from us or towards a future close encounter with the Solar System.
      .
      The radial velocity measurements confirmed that the binary star system was actually speeding away from us. By tracing its movements back in time, they found its close shave with the Sun occurred some 70,000 years ago.

      February 20, 2015
      1. SEC

        Ah that higher math stuff

        February 20, 2015
        1. EZWAYZ

          yup, its more than ought and double oughts

          February 20, 2015
  2. wirelessguru1

    Well, stars don’t buzz very often…

    February 20, 2015
    1. shadowstarz

      I’m always buzzing, what are you talking about !?

      February 20, 2015
      1. wirelessguru1

        You shine more than buzz…when you are not hiding in the shadows…

        February 20, 2015
        1. shadowstarz

          Hmm. I don’t hide in the shadows. LOL
          I enjoy my privacy, that’s all. And now, that this place is fixed, I can exercise my right to privacy !

          February 20, 2015
      2. EZWAYZ

        lmao!

        February 20, 2015
    2. EZWAYZ

      a red dwarf, its brown dwarf companion, the Oort cloud and cosmic billiards

      February 20, 2015
  3. This comment has been deleted