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Re: Apollo 11

From Sylvia Else <sylvia@not.at.this.address>
Newsgroups sci.physics.relativity
Subject Re: Apollo 11
Date 2017-02-03 09:40 +1100
Message-ID <efhqroFe2ffU1@mid.individual.net> (permalink)
References <39391af7-5bea-4ba2-99cf-4448ebb67f5b@googlegroups.com> <9073a4cc-4f7d-4525-88c7-9614f2c142d3@googlegroups.com>

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On 3/02/2017 6:37 AM, numbernumber1964@gmail.com wrote:
>
> Sylvia,
>
>
>
> https://en.wikipedia.org/wiki/Barycenter
>
>
> This derivation requires the mass of the earth which is derived using
> F = ma and F = G m1m2/r^2. Hence, the value of G is required in
> determining the gravity .16 g on the surface of the moon.
>
>
>

The equation relates the barycentre to the ratio of the masses. If you 
know the ration of the masses you can calculate the barycentre.

But if you know the barycentre already, from astronomical observations, 
then you can use it to calculate the ratio of the masses. As I've shown, 
once you have that ratio, you can use it to calculate the trajectory of 
objects near the moon.

Your assertion that the value of G is required is false.

Sylvia.

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Apollo 11 numbernumber1964@gmail.com - 2017-01-27 10:57 -0800
  Re: Apollo 11 JanPB <filmart@gmail.com> - 2017-01-27 16:05 -0800
    Re: Apollo 11 Juliana Auerbach <jaot@tognaenn.org> - 2017-01-28 00:18 +0000
      Re: Apollo 11 JanPB <filmart@gmail.com> - 2017-01-27 16:41 -0800
        Re: Apollo 11 Juliana Auerbach <jaot@tognaenn.org> - 2017-01-28 01:14 +0000
          Re: Apollo 11 JanPB <filmart@gmail.com> - 2017-01-28 11:33 -0800
            Re: Apollo 11 Juliana Auerbach <jaot@tognaenn.org> - 2017-01-28 20:22 +0000
          Re: Apollo 11 JanPB <filmart@gmail.com> - 2017-01-28 11:34 -0800
            Re: Apollo 11 Juliana Auerbach <jaot@tognaenn.org> - 2017-01-28 20:19 +0000
              Re: Apollo 11 JanPB <filmart@gmail.com> - 2017-01-28 17:21 -0800
                Re: Apollo 11 Juanita Forney <iatiet@oetnnrn.org> - 2017-01-30 12:33 +0000
  Re: Apollo 11 numbernumber1964@gmail.com - 2017-01-27 16:46 -0800
  Re: Apollo 11 Sylvia Else <sylvia@not.at.this.address> - 2017-01-28 12:48 +1100
  Re: Apollo 11 numbernumber1964@gmail.com - 2017-01-28 13:16 -0800
    Re: Apollo 11 Sylvia Else <sylvia@not.at.this.address> - 2017-01-29 13:04 +1100
    Re: Apollo 11 John Gogo <jfgogo22@yahoo.com> - 2017-02-10 17:08 -0800
  Re: Apollo 11 numbernumber1964@gmail.com - 2017-01-28 13:24 -0800
  Re: Apollo 11 numbernumber1964@gmail.com - 2017-01-28 13:34 -0800
  Re: Apollo 11 Thomas Heger <ttt_heg@web.de> - 2017-01-29 07:36 +0100
    Re: Apollo 11 Gary Harnagel <hitlong@yahoo.com> - 2017-01-29 03:20 -0800
      Re: Apollo 11 Thomas Heger <ttt_heg@web.de> - 2017-01-29 20:16 +0100
        Re: Apollo 11 Gary Harnagel <hitlong@yahoo.com> - 2017-01-29 12:07 -0800
          Re: Apollo 11 Thomas Heger <ttt_heg@web.de> - 2017-02-01 06:24 +0100
        Re: Apollo 11 "Paul B. Andersen" <relativity@paulba.no> - 2017-01-29 22:43 +0100
  Re: Apollo 11 numbernumber1964@gmail.com - 2017-01-29 12:05 -0800
  Re: Apollo 11 numbernumber1964@gmail.com - 2017-01-29 15:27 -0800
    Re: Apollo 11 Gary Harnagel <hitlong@yahoo.com> - 2017-01-29 15:40 -0800
  Re: Apollo 11 numbernumber1964@gmail.com - 2017-01-30 12:37 -0800
    Re: Apollo 11 Sylvia Else <sylvia@not.at.this.address> - 2017-01-31 11:18 +1100
  Re: Apollo 11 numbernumber1964@gmail.com - 2017-01-30 15:58 -0800
  Re: Apollo 11 numbernumber1964@gmail.com - 2017-01-30 16:18 -0800
    Re: Apollo 11 Sylvia Else <sylvia@not.at.this.address> - 2017-01-31 11:22 +1100
  Re: Apollo 11 numbernumber1964@gmail.com - 2017-01-30 16:42 -0800
    Re: Apollo 11 Sylvia Else <sylvia@not.at.this.address> - 2017-01-31 12:13 +1100
  Re: Apollo 11 numbernumber1964@gmail.com - 2017-01-31 10:01 -0800
    Re: Apollo 11 Sylvia Else <sylvia@not.at.this.address> - 2017-02-01 12:14 +1100
  Re: Apollo 11 numbernumber1964@gmail.com - 2017-01-31 14:51 -0800
  Re: Apollo 11 numbernumber1964@gmail.com - 2017-02-01 12:24 -0800
    Re: Apollo 11 Sylvia Else <sylvia@not.at.this.address> - 2017-02-02 12:11 +1100
    Re: Apollo 11 The Starmaker <starmaker@ix.netcom.com> - 2017-02-01 21:35 -0800
      Re: Apollo 11 "David (Lord Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2017-02-01 22:05 -0800
  Re: Apollo 11 numbernumber1964@gmail.com - 2017-02-01 15:39 -0800
  Re: Apollo 11 numbernumber1964@gmail.com - 2017-02-02 11:37 -0800
    Re: Apollo 11 Sylvia Else <sylvia@not.at.this.address> - 2017-02-03 09:40 +1100
  Re: Apollo 11 numbernumber1964@gmail.com - 2017-02-02 15:22 -0800
    Re: Apollo 11 Sylvia Else <sylvia@not.at.this.address> - 2017-02-03 11:52 +1100
  Re: Apollo 11 numbernumber1964@gmail.com - 2017-02-03 11:55 -0800
    Re: Apollo 11 Sylvia Else <sylvia@not.at.this.address> - 2017-02-04 11:44 +1100
  Re: Apollo 11 numbernumber1964@gmail.com - 2017-02-03 15:25 -0800
  Re: Apollo 11 numbernumber1964@gmail.com - 2017-02-04 12:49 -0800
    Re: Apollo 11 Sylvia Else <sylvia@not.at.this.address> - 2017-02-05 12:07 +1100
  Re: Apollo 11 numbernumber1964@gmail.com - 2017-02-05 12:16 -0800
    Re: Apollo 11 Sylvia Else <sylvia@not.at.this.address> - 2017-02-06 08:35 +1100
  Re: Apollo 11 numbernumber1964@gmail.com - 2017-02-06 11:49 -0800
    Re: Apollo 11 Sylvia Else <sylvia@not.at.this.address> - 2017-02-07 10:58 +1100
  Re: Apollo 11 numbernumber1964@gmail.com - 2017-02-07 13:32 -0800
    Re: Apollo 11 Sylvia Else <sylvia@not.at.this.address> - 2017-02-08 12:49 +1100
  Re: Apollo 11 numbernumber1964@gmail.com - 2017-02-08 11:13 -0800
    Re: Apollo 11 Sylvia Else <sylvia@not.at.this.address> - 2017-02-09 12:34 +1100
  Re: Apollo 11 numbernumber1964@gmail.com - 2017-02-09 11:11 -0800
    Re: Apollo 11 Sylvia Else <sylvia@not.at.this.address> - 2017-02-10 10:53 +1100
    Re: Apollo 11 The Starmaker <starmaker@ix.netcom.com> - 2017-02-12 11:09 -0800
      Re: Apollo 11 Sylvia Else <sylvia@not.at.this.address> - 2017-02-13 11:52 +1100
  Re: Apollo 11 numbernumber1964@gmail.com - 2017-02-10 11:01 -0800
    Re: Apollo 11 Sylvia Else <sylvia@not.at.this.address> - 2017-02-11 11:42 +1100
  Re: Apollo 11 numbernumber1964@gmail.com - 2017-02-11 11:21 -0800
    Re: Apollo 11 Sylvia Else <sylvia@not.at.this.address> - 2017-02-12 12:00 +1100
  Re: Apollo 11 numbernumber1964@gmail.com - 2017-02-12 11:44 -0800
    Re: Apollo 11 Sylvia Else <sylvia@not.at.this.address> - 2017-02-13 11:51 +1100
  Re: Apollo 11 numbernumber1964@gmail.com - 2017-02-12 13:43 -0800
  Re: Apollo 11 numbernumber1964@gmail.com - 2017-02-13 10:23 -0800
  Re: Apollo 11 numbernumber1964@gmail.com - 2017-02-14 09:54 -0800
    Re: Apollo 11 Sylvia Else <sylvia@not.at.this.address> - 2017-02-15 14:26 +1100
  Re: Apollo 11 numbernumber1964@gmail.com - 2017-02-14 10:49 -0800
  Re: Apollo 11 numbernumber1964@gmail.com - 2017-02-14 10:52 -0800

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