1. Final Announcement: We're Saying Goodbye to AstronomyConnect. Read Our Closing Notice.
Dismiss Notice
New Cookie Policy
On May 24, 2018, we published revised versions of our Terms and Rules and Cookie Policy. Your use of AstronomyConnect.com’s services is subject to these revised terms.

Connecting the Sun's Siblings

Discussion in 'General Astronomy Chat' started by Seer, Nov 21, 2018.

Connecting the Sun's Siblings

Started by Seer on Nov 21, 2018 at 8:31 PM

16 Replies 1541 Views 1 Likes

Reply to Thread Post New Thread
  1. Seer

    Seer Well-Known Member

    Joined:
    Oct 29, 2018
    Posts:
    341
    Trophy Points:
    28
    Location:
    Johnstown, Pennsylvania USA
    Seer, Nov 21, 2018
    #1
    I was just reading in the news section about the discovery of the Sun's twin sibling HD186302 and I was observing the Sun's other sibling HD162826 on Sept 20, 2018. I looked them up in my charts and seen that they are kind of in the same swath of sky. Would drawing a line between them and searching along that plane be helpful in finding more siblings? That plane extends around to the other side as well. Don't forget there are 3 coordinates for establishing this plane. I think they could probably tell the speed and direction of each of the 3 stars. That would probably give a lot of insight.
     
    Last edited: Nov 22, 2018
    PXR-5 likes this.
  2. Seer

    Seer Well-Known Member

    Joined:
    Oct 29, 2018
    Posts:
    341
    Trophy Points:
    28
    Location:
    Johnstown, Pennsylvania USA
    Seer, Nov 22, 2018
    #2
    I was just trying to get some kind of an idea of whereabouts this plane exists and extends. This is no where close to being accurate. Both of the other stars are somewhat close to 18 hours Right Ascension so fallowing that through to the other side is 6 hours Right Ascension. That runs along the side of Orion.
     
  3. Seer

    Seer Well-Known Member

    Joined:
    Oct 29, 2018
    Posts:
    341
    Trophy Points:
    28
    Location:
    Johnstown, Pennsylvania USA
    Seer, Nov 22, 2018
    #3
    Why are galaxies and our solar system kind of flatish but star clusters don't seem to be? Perhaps they may be flatish also but its just how we view them?
     
  4. Seer

    Seer Well-Known Member

    Joined:
    Oct 29, 2018
    Posts:
    341
    Trophy Points:
    28
    Location:
    Johnstown, Pennsylvania USA
    Seer, Nov 22, 2018
    #4
    Chu-chu-chu-chu- WOO-WOO!
    My thought train continues on. Is anyone else onboard?
    Those 2 stars look like they lay in the direction of the center of the galaxy from us. I heard that everything is expanding. So as far as the 3 stars goes are we leading the pack but there could be others.
     
  5. Gabby76

    Gabby76 Well-Known Member

    Joined:
    Dec 16, 2016
    Posts:
    568
    Trophy Points:
    63
    Location:
    Slovakia
    Gabby76, Nov 22, 2018
    #5
    This may help explain conservation of angular momentum :)
    https://en.wikipedia.org/wiki/Angular_momentum
     
    Seer likes this.
  6. Seer

    Seer Well-Known Member

    Joined:
    Oct 29, 2018
    Posts:
    341
    Trophy Points:
    28
    Location:
    Johnstown, Pennsylvania USA
    Seer, Nov 22, 2018
    #6
    Very interesting. It only somewhat answers my question.
    So if the sun and its siblings did go through a flat phase there might be a chance that it still exists to some degree?
    Even if they didn't have a flat phase these 3 stars still hold relevance to each other probably in many ways.
     
  7. Seer

    Seer Well-Known Member

    Joined:
    Oct 29, 2018
    Posts:
    341
    Trophy Points:
    28
    Location:
    Johnstown, Pennsylvania USA
    Seer, Nov 22, 2018
    #7
    Now I'm thinking of the effects of an explosive hubbed star cluster. Could a super nova disperse stars like this. I heard that some of the material here is from a super nova. This reminds me of the time that I was thinking about the so called missing planet.
     
  8. Gabby76

    Gabby76 Well-Known Member

    Joined:
    Dec 16, 2016
    Posts:
    568
    Trophy Points:
    63
    Location:
    Slovakia
    Gabby76, Nov 22, 2018
    #8
    Seer likes this.
  9. Gabby76

    Gabby76 Well-Known Member

    Joined:
    Dec 16, 2016
    Posts:
    568
    Trophy Points:
    63
    Location:
    Slovakia
    Gabby76, Nov 22, 2018
    #9
    The elements in your body were made in supernova :)
    Missing planet? I have not heard that before.
     
    Seer likes this.
  10. Seer

    Seer Well-Known Member

    Joined:
    Oct 29, 2018
    Posts:
    341
    Trophy Points:
    28
    Location:
    Johnstown, Pennsylvania USA
    Seer, Nov 22, 2018
    #10
    It was bigger news a few years ago. Some were calling it planet X. They were saying that mathematically it should exist. I recall seeing a chart for the orbital paths of a couple of bodies that may have indicated its existence and approximant whereabouts. It's something that you really don't hear about it now.
    The line that the 3 stars form seems to run almost parallel to the galactic plane.
     
  11. Seer

    Seer Well-Known Member

    Joined:
    Oct 29, 2018
    Posts:
    341
    Trophy Points:
    28
    Location:
    Johnstown, Pennsylvania USA
    Seer, Nov 22, 2018
    #11
     
  12. Seer

    Seer Well-Known Member

    Joined:
    Oct 29, 2018
    Posts:
    341
    Trophy Points:
    28
    Location:
    Johnstown, Pennsylvania USA
    Seer, Nov 22, 2018
    #12

    Here is something a little more resent.
     
  13. Seer

    Seer Well-Known Member

    Joined:
    Oct 29, 2018
    Posts:
    341
    Trophy Points:
    28
    Location:
    Johnstown, Pennsylvania USA
    Seer, Nov 22, 2018
    #13

    This one is pretty good also.
     
  14. kevan hubbard

    kevan hubbard Well-Known Member

    Joined:
    May 15, 2016
    Posts:
    609
    Trophy Points:
    43
    kevan hubbard, Nov 23, 2018
    #14
    Some have thought that the Suns parent cluster is m67 in cancer although this seems to be discounted now.the sun would appear not to have come from the same cluster as the alpha a and b Centauri.proxima I'm not sure but it could be a passing star although there is increasing evidence of it being gravitationally bound to alpha Centauri.perhaps the suns home cluster has completely dispersed?the Ursa major moving cluster would seem to be the closest to us but I've never read our sun is connected to the stars in it.
     
    Gabby76 and Seer like this.
  15. Gabby76

    Gabby76 Well-Known Member

    Joined:
    Dec 16, 2016
    Posts:
    568
    Trophy Points:
    63
    Location:
    Slovakia
    Gabby76, Nov 23, 2018
    #15
    Personally I am not much for the "planet X or 9" hype.
    We already have 9 planets and 4 dwarf planets.... (Eris, Haumea, Makemake and Ceres)
    :D
     
  16. Seer

    Seer Well-Known Member

    Joined:
    Oct 29, 2018
    Posts:
    341
    Trophy Points:
    28
    Location:
    Johnstown, Pennsylvania USA
    Seer, Nov 24, 2018
    #16
    The WACKOS really latched on to that news and went running with it. I hope that they don't dissuade any scientists from searching for it. This is after all exactly how Neptune was found.
     
  17. Seer

    Seer Well-Known Member

    Joined:
    Oct 29, 2018
    Posts:
    341
    Trophy Points:
    28
    Location:
    Johnstown, Pennsylvania USA
    Seer, Nov 24, 2018
    #17

    I don't know when this was made but when it was posted we already knew of one. Right?
     
    Last edited: Nov 24, 2018

Share This Page