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Technology: Astronomy Domine

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    https://www.centauri-dreams.org/2021/11/09/the-exoplanet-pipeline/

    @Angus
    This partially answers a query you had recently
    •  
      CommentAuthorAngus
    • CommentTimeNov 9th 2021
     
    WOW! That is some precision spectrometry.
  3.  
    Live astronomical conference
    https://www.youtube.com/watch?v=rLydXZOo4eA

    Musk will appear later
    •  
      CommentAuthoraber0der
    • CommentTimeNov 17th 2021
     
    Posted By: Andrew PalfreymanLive astronomical conference
    https://www.youtube.com/watch?v=5HpgJJ1FwTc

    Musk will appear later



    That's Rover Cam you posted.
  5.  
    Link updated - thanks.

    A thought:
    ​How about strapping a camera to the space-facing side of each Starlink satellite? You get an awesome interferometer that way.
    •  
      CommentAuthoraber0der
    • CommentTimeNov 17th 2021
     
    Don't they have already cameras facing south for attitude control?
    •  
      CommentAuthorAngus
    • CommentTimeNov 17th 2021
     
    Posted By: Andrew PalfreymanLink updated - thanks.

    A thought:
    ​How about strapping a camera to the space-facing side of each Starlink satellite? You get an awesome interferometer that way.


    Whut? Cameras detect intensity. How are you going to measure phase?
  8.  
    Oops. Little antennae then.
    •  
      CommentAuthorAngus
    • CommentTimeNov 17th 2021 edited
     
    Posted By: Andrew PalfreymanOops. Little antennae then.


    OK but you need fantastically accurate clocks aboard too in order to record the phase of the radio waves. Unless you want to invest in the interesting problem of correcting on the ground for doppler shift, relativity, continuously changing baseline, and a whole lot of issues I can't even imagine.

    And what is the real advantage? You hardly increase the resolution - the maximum baseline is a few hundred km more than the diameter of the earth. I suppose we haven't actually achieved the full diameter with ground based astronomy yet, but there's a principle involved here.

    If you want a really difficult problem with real potential join the guys working on the interferometer using the Trojan points.
    •  
      CommentAuthorTrim
    • CommentTimeNov 18th 2021
     
    Posted By: Andrew PalfreymanOops. Little antennae then.


    Hope you are not referring to your wedding tackle.
    •  
      CommentAuthoraber0der
    • CommentTimeNov 18th 2021
     
    Posted By: Andrew PalfreymanMusk will appear later


    He disappeared and I was left with the impression that he cares about the
    things he talks about and the things he does.
    •  
      CommentAuthorTrim
    • CommentTimeNov 22nd 2021
     
    Woah! Potential Planet 9 Candidate Found In The Old Data - Could This Be It? - YouTube

    https://m.youtube.com/watch?v=ZSyAO4fGZOE
    •  
      CommentAuthorjohnq
    • CommentTimeNov 23rd 2021
     
  14.  
    If every one of 500 steps has to succeed, and each has a probability of success of 99.9%, then the overall probability of success is 60%
    •  
      CommentAuthorTrim
    • CommentTimeNov 23rd 2021
     
    Yikes, toes crossed.
    • CommentAuthorAsterix
    • CommentTimeDec 3rd 2021
     
  17.  
    Hopes and fears from Cool Worlds
    https://www.youtube.com/watch?v=IFx3r32r-GU
    •  
      CommentAuthormagic moment
    • CommentTimeDec 14th 2021 edited
     
    Oh, what an entangled Webb...

    Launch: https://youtu.be/v6ihVeEoUdo

    Deployment: https://youtu.be/v6ihVeEoUdo?t=255

    12/22/2021

    Rube would be proud.
  19.  
    • CommentAuthorAsterix
    • CommentTimeDec 15th 2021
     
    I believe that I scooped you on that one.

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