Re: Calculating G

From	Sylvia Else <sylvia@not.at.this.address>
Newsgroups	sci.physics
Subject	Re: Calculating G
Date	2016-12-31 20:28 +1100
Message-ID	<ecpc1gF3d5gU1@mid.individual.net> (permalink)
References	(5 earlier) <ecms2rFflm7U1@mid.individual.net> <71dccb3d-7f72-4727-b47a-99d58b0abbde@googlegroups.com> <ecocrfFr9vrU1@mid.individual.net> <6f1a1c49-6718-4aed-874f-f3dafd4a4d7a@googlegroups.com> <ecogkgFs36sU1@mid.individual.net>

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On 31/12/2016 12:40 PM, Sylvia Else wrote:
> It's value beyond that is
> constrained by the requirement that the orbital periods of binary stars
> be consistent with their separation and their masses, as estimated using
> the brightness (or period, in the case of some variable stars) using
> stellar physics.

I may be guilty of some circularity of my own here, since the brightness 
of a star of given mass depends on the local value of G. For higher G, 
the star will be brighter (and shorter lived) for a given mass. However, 
I'd be surprised if the relationship were linear, so inconsistencies 
would still show (unless I'm wrong about the relationship).

It should also be noted that stars get brighter as they age, even 
thought their mass is reducing.

Sylvia.

Thread

Calculating G Peter Riedt <riedt1@yahoo.co.uk> - 2016-12-28 06:13 -0800
  Re: Calculating G Poutnik <poutnik4nntp@gmail.com> - 2016-12-28 15:40 +0100
    Re: Calculating G Poutnik <poutnik4nntp@gmail.com> - 2016-12-28 15:41 +0100
    Re: Calculating G Peter Riedt <riedt1@yahoo.co.uk> - 2016-12-28 22:10 -0800
      Re: Calculating G "hanson" <hanson@quick.net> - 2016-12-28 22:29 -0800
      Re: Calculating G Poutnik <poutnik4nntp@gmail.com> - 2016-12-29 08:07 +0100
        Re: Calculating G Peter Riedt <riedt1@yahoo.co.uk> - 2016-12-29 16:53 -0800
  Re: Calculating G Alan Folmsbee <omnilobe@gmail.com> - 2016-12-28 09:27 -0800
  Re: Calculating G Sylvia Else <sylvia@not.at.this.address> - 2016-12-29 17:21 +1100
    Re: Calculating G Peter Riedt <riedt1@yahoo.co.uk> - 2016-12-29 04:21 -0800
      Re: Calculating G Wally W. <ww84wa@aim.com> - 2016-12-29 09:11 -0500
        Re: Calculating G "hanson" <hanson@quick.net> - 2016-12-29 06:34 -0800
          Re: Calculating G noTthaTguY <abu.kuanysh05@gmail.com> - 2016-12-29 15:40 -0800
          Re: Calculating G Peter Riedt <riedt1@yahoo.co.uk> - 2016-12-29 16:52 -0800
        Re: Calculating G Peter Riedt <riedt1@yahoo.co.uk> - 2016-12-29 16:59 -0800
          Re: Calculating G Odd Bodkin <bodkinodd@gmail.com> - 2017-01-03 12:19 -0600
            Re: Calculating G noTthaTguY <abu.kuanysh05@gmail.com> - 2017-01-03 12:43 -0800
      Re: Calculating G Sylvia Else <sylvia@not.at.this.address> - 2016-12-30 13:22 +1100
        Re: Calculating G Peter Riedt <riedt1@yahoo.co.uk> - 2016-12-30 01:11 -0800
          Re: Calculating G Sylvia Else <sylvia@not.at.this.address> - 2016-12-30 21:43 +1100
            Re: Calculating G "hanson" <hanson@quick.net> - 2016-12-30 06:48 -0800
            Re: Calculating G Peter Riedt <riedt1@yahoo.co.uk> - 2016-12-30 14:43 -0800
              Re: Calculating G Sylvia Else <sylvia@not.at.this.address> - 2016-12-31 11:35 +1100
                Re: Calculating G Peter Riedt <riedt1@yahoo.co.uk> - 2016-12-30 17:06 -0800
                Re: Calculating G Sylvia Else <sylvia@not.at.this.address> - 2016-12-31 12:40 +1100
                Re: Calculating G Peter Riedt <riedt1@yahoo.co.uk> - 2016-12-30 23:22 -0800
                Re: Calculating G Sylvia Else <sylvia@not.at.this.address> - 2016-12-31 20:28 +1100
                Re: Calculating G "reber g=emc^2" <herbertglazier0@gmail.com> - 2016-12-31 11:07 -0800
                Re: Calculating G "hanson" <hanson@quick.net> - 2016-12-31 11:16 -0800
                Re: Calculating G "reber g=emc^2" <herbertglazier0@gmail.com> - 2016-12-31 13:22 -0800
                Re: Calculating G "hanson" <hanson@quick.net> - 2016-12-31 15:36 -0800
                Re: Calculating G Sylvia Else <sylvia@not.at.this.address> - 2017-01-01 11:49 +1100
              Re: Calculating G Odd Bodkin <bodkinodd@gmail.com> - 2017-01-03 15:09 -0600
                Re: Calculating G Peter Riedt <riedt1@yahoo.co.uk> - 2017-01-03 16:22 -0800
                Re: Calculating G noTthaTguY <abu.kuanysh05@gmail.com> - 2017-01-03 16:57 -0800
                Re: Calculating G Odd Bodkin <bodkinodd@gmail.com> - 2017-01-04 10:22 -0600
                Re: Calculating G Peter Riedt <riedt1@yahoo.co.uk> - 2017-01-05 16:02 -0800
                Re: Calculating G Odd Bodkin <bodkinodd@gmail.com> - 2017-01-06 07:09 -0600

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