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Polaris

Discussion in 'General Astronomy Chat' started by Pleiades, Sep 13, 2017 at 7:02 AM.

Polaris

Started by Pleiades on Sep 13, 2017 at 7:02 AM

7 Replies 38 Views 0 Likes

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  1. Pleiades

    Pleiades Active Member

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    So, Polaris is a double. Do they orbit one another, or just lined up?
     
  2. Dave In Vermont

    Dave In Vermont Well-Known Member

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    Polaris is known to be a triple-star system. Though I have had trouble verifying it to be a true at least binary and, likely, a true trinary-system, this appears to be hard to prove. But considering how close they are and difficult to split optically, I'd venture a guess they are all true binary/trinary stars. Here's a good article on this famous point-of-light:

    https://www.space.com/1923-north-star-unseen-companion-photographed.html

    If you like binary-stars - either true-doubles or optical - take a look about Star Splitters, an excellent (imho) website for us who split stars and hairs occasionally:

    https://www.space.com/1923-north-star-unseen-companion-photographed.html

    Hope this helps -

    Dave

    PS - Oooops! Missed! See below for corrected link(s).
     
    Last edited: Sep 14, 2017 at 7:09 AM
  3. Pleiades

    Pleiades Active Member

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    That's pretty cool Dave. If we ever get a clear night again, I'll be pointing my scope to the North.
    :)
     
  4. Mak the Night

    Mak the Night Well-Known Member

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    polar (1).jpg polar (2).jpg

    My EQ5 has an internal polar scope so I can align the mount with Polaris.

    polaris0.jpg

    According to SN7 Polaris has an exoplanet.

    plaris3.jpg
    polaris2.jpg polaris1.jpg

    I think Celestia seriously needs updating as it doesn't even show it as a binary. lol
     
  5. Dave In Vermont

    Dave In Vermont Well-Known Member

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  6. Pleiades

    Pleiades Active Member

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    Dave In Vermont likes this.
  7. Mak the Night

    Mak the Night Well-Known Member

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    I dunno, I think it got an update as recently as 1978. lol
     
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  8. Mak the Night

    Mak the Night Well-Known Member

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    It's not so easy to actually look through lol.
     
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