Re: Kepler's orbital constaints

From	Poutnik <poutnik4nntp@gmail.com>
Newsgroups	sci.physics
Subject	Re: Kepler's orbital constaints
Date	2016-02-19 07:30 +0100
Organization	Good company
Message-ID	<na6ck0$qmo$1@dont-email.me> (permalink)
References	(8 earlier) <40078afb-97f9-45cf-80b9-230c814eda8a@googlegroups.com> <na4pum$1hv$1@gioia.aioe.org> <2fb85b86-3786-43da-ae0c-3defc49ce796@googlegroups.com> <na66ql$e03$1@dont-email.me> <2d6ed3fd-eaad-4661-b62a-9796a4c971ce@googlegroups.com>

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Dne 19/02/2016 v 07:10 Peter Riedt napsal(a):
> On Friday, February 19, 2016 at 12:51:21 PM UTC+8, Poutnik wrote:
>> Dne 19/02/2016 v 01:12 Peter Riedt napsal(a):
>>> On Friday, February 19, 2016 at 12:02:38 AM UTC+8, Odd Bodkin wrote:
>>
>>>>
>>>> https://en.wikipedia.org/wiki/List_of_gravitationally_rounded_objects_of_the_Solar_System
>>>>
>>>> Note that none of the information on this page includes orbital period 
>>>> in seconds or semimajor axis in any units. So again, I ask you, where 
>>>> did the data in your table come from?
>>>>
>>> I used the quoted mean distance from the sun and orbital periods in earth years converted to seconds.
>>>
>> At mean distance there is a trap in
>> what exactly is meant by the mean.
>>
>> Mean as arithmetic mean of perigee and apogee ?
>> Mean as arithmetic mean for orbit points ?
>> Mean as arithmetic mean for time points ?
>>
>> So it is much better
>> to use explicit semi major axis data, which are available.
>>
> 
> Your suggestion is excellent as 'mean' can mean different things.
> 
The mean is a standard statistical term.

The average is the arithmetic mean,
where there is also
the geometric mean based on multiplication
and harmonic mean based on reciprocal values.

All of them can be also weighted.
-- 
Poutnik ( the Czech word for a wanderer )

Knowledge makes great men humble, but small men arrogant.

Thread

Kepler's 3rd with adjusted orbital periods Peter Riedt <riedt1@yahoo.co.uk> - 2016-02-12 17:10 -0800
  Kepler's orbital constaints noTthaTguY <abu.kuanysh05@gmail.com> - 2016-02-12 19:25 -0800
    Re: Kepler's orbital constaints Peter Riedt <riedt1@yahoo.co.uk> - 2016-02-12 20:35 -0800
      Re: Kepler's orbital constaints Poutnik <poutnik4nntp@gmail.com> - 2016-02-14 22:55 +0100
        Re: Kepler's orbital constaints Peter Riedt <riedt1@yahoo.co.uk> - 2016-02-15 16:32 -0800
          Re: Kepler's orbital constaints noTthaTguY <abu.kuanysh05@gmail.com> - 2016-02-15 16:35 -0800
            Re: Kepler's orbital constaints Peter Riedt <riedt1@yahoo.co.uk> - 2016-02-15 16:45 -0800
          Re: Kepler's orbital constaints Poutnik <poutnik4nntp@gmail.com> - 2016-02-16 08:16 +0100
            Re: Kepler's orbital constaints Peter Riedt <riedt1@yahoo.co.uk> - 2016-02-16 00:39 -0800
              Re: Kepler's orbital constaints Poutnik <poutnik4nntp@gmail.com> - 2016-02-16 02:16 -0800
          Re: Kepler's orbital constaints Odd Bodkin <bodkinodd@gmail.com> - 2016-02-16 07:44 -0600
            Re: Kepler's orbital constaints benj <none@gmail.com> - 2016-02-16 11:45 -0500
              Re: Kepler's orbital constaints Odd Bodkin <bodkinodd@gmail.com> - 2016-02-16 11:53 -0600
            Re: Kepler's orbital constaints Peter Riedt <riedt1@yahoo.co.uk> - 2016-02-16 11:04 -0800
              Re: Kepler's orbital constaints Odd Bodkin <bodkinodd@gmail.com> - 2016-02-16 22:56 -0600
                Re: Kepler's orbital constaints Peter Riedt <riedt1@yahoo.co.uk> - 2016-02-17 17:22 -0800
                Re: Kepler's orbital constaints Odd Bodkin <bodkinodd@gmail.com> - 2016-02-18 10:02 -0600
                Re: Kepler's orbital constaints Peter Riedt <riedt1@yahoo.co.uk> - 2016-02-18 16:12 -0800
                Re: Kepler's orbital constaints Poutnik <poutnik4nntp@gmail.com> - 2016-02-19 05:51 +0100
                Re: Kepler's orbital constaints Peter Riedt <riedt1@yahoo.co.uk> - 2016-02-18 22:10 -0800
                Re: Kepler's orbital constaints Poutnik <poutnik4nntp@gmail.com> - 2016-02-19 07:30 +0100
  Re: Kepler's 3rd with adjusted orbital periods Odd Bodkin <bodkinodd@gmail.com> - 2016-02-13 09:42 -0600
    Re: Kepler's 3rd with adjusted orbital periods Peter Riedt <riedt1@yahoo.co.uk> - 2016-02-13 16:18 -0800
      Re: Kepler's 3rd with adjusted orbital periods Odd Bodkin <bodkinodd@gmail.com> - 2016-02-14 15:45 -0600
  Re: Kepler's 3rd with adjusted orbital periods Timo <timo@physics.uq.edu.au> - 2016-02-13 17:45 -0800
    Re: Kepler's 3rd with adjusted orbital periods Peter Riedt <riedt1@yahoo.co.uk> - 2016-02-13 19:24 -0800
  Re: Kepler's 3rd with adjusted orbital periods Poutnik <poutnik4nntp@gmail.com> - 2016-02-14 19:09 +0100
    Re: Kepler's 3rd with adjusted orbital periods Peter Riedt <riedt1@yahoo.co.uk> - 2016-02-14 17:44 -0800
      Re: Kepler's 3rd with adjusted orbital periods Sam Wormley <swormley1@gmail.com> - 2016-02-14 19:50 -0600
      Re: Kepler's 3rd with adjusted orbital periods Poutnik <poutnik4nntp@gmail.com> - 2016-02-15 07:16 +0100
      Re: Kepler's 3rd with adjusted orbital periods Poutnik <poutnik4nntp@gmail.com> - 2016-02-15 08:30 +0100
        Re: Kepler's 3rd with adjusted orbital periods Peter Riedt <riedt1@yahoo.co.uk> - 2016-02-15 16:21 -0800
          Re: Kepler's 3rd with adjusted orbital periods Poutnik <poutnik4nntp@gmail.com> - 2016-02-16 08:20 +0100
      Re: Kepler's 3rd with adjusted orbital periods HVAC <mr.hvac@gmail.com> - 2016-02-16 04:28 -0800
        Re: Kepler's 3rd with adjusted orbital periods Peter Riedt <riedt1@yahoo.co.uk> - 2016-02-16 05:19 -0800
        Re: Kepler's 3rd with adjusted orbital periods benj <none@gmail.com> - 2016-02-16 11:16 -0500
          Re: Kepler's 3rd with adjusted orbital periods Odd Bodkin <bodkinodd@gmail.com> - 2016-02-16 10:30 -0600
            Re: Kepler's 3rd with adjusted orbital periods benj <none@gmail.com> - 2016-02-16 11:55 -0500
              Re: Kepler's 3rd with adjusted orbital periods Odd Bodkin <bodkinodd@gmail.com> - 2016-02-16 11:58 -0600
                Re: Kepler's 3rd with adjusted orbital periods benj <none@gmail.com> - 2016-02-16 16:21 -0500
                Re: Kepler's 3rd with adjusted orbital periods Odd Bodkin <bodkinodd@gmail.com> - 2016-02-16 23:05 -0600
                Re: Kepler's 3rd with adjusted orbital periods benj <none@gmail.com> - 2016-02-17 01:27 -0500
                Re: Kepler's 3rd with adjusted orbital periods Odd Bodkin <bodkinodd@gmail.com> - 2016-02-17 09:00 -0600
                Re: Kepler's 3rd with adjusted orbital periods benj <none@gmail.com> - 2016-02-17 16:19 -0500
                Re: Kepler's 3rd with adjusted orbital periods Odd Bodkin <bodkinodd@gmail.com> - 2016-02-17 15:45 -0600
                Re: Kepler's 3rd with adjusted orbital periods benj <none@gmail.com> - 2016-02-17 19:15 -0500
                Re: Kepler's 3rd with adjusted orbital periods Odd Bodkin <bodkinodd@gmail.com> - 2016-02-18 07:28 -0600
                Re: Kepler's 3rd with adjusted orbital periods benj <none@gmail.com> - 2016-02-18 10:21 -0500
                Re: Kepler's 3rd with adjusted orbital periods Odd Bodkin <bodkinodd@gmail.com> - 2016-02-22 08:29 -0600
        Re: Kepler's 3rd with adjusted orbital periods Peter Riedt <riedt1@yahoo.co.uk> - 2016-02-16 11:01 -0800
          Re: Kepler's 3rd with adjusted orbital periods noTthaTguY <abu.kuanysh05@gmail.com> - 2016-02-16 13:30 -0800
  Re: Kepler's 3rd with adjusted orbital periods Sylvia Else <sylvia@not.at.this.address> - 2016-02-18 13:34 +1100
    Re: Kepler's 3rd with adjusted orbital periods Peter Riedt <riedt1@yahoo.co.uk> - 2016-02-17 19:19 -0800
      Re: Kepler's 3rd with adjusted orbital periods Sylvia Else <sylvia@not.at.this.address> - 2016-02-18 15:04 +1100
        Re: Kepler's 3rd with adjusted orbital periods Peter Riedt <riedt1@yahoo.co.uk> - 2016-02-17 20:51 -0800
          Re: Kepler's 3rd with adjusted orbital periods Sylvia Else <sylvia@not.at.this.address> - 2016-02-18 16:57 +1100
          Re: Kepler's 3rd with adjusted orbital periods Poutnik <poutnik4nntp@gmail.com> - 2016-02-18 07:33 +0100
          Re: Kepler's 3rd with adjusted orbital periods Odd Bodkin <bodkinodd@gmail.com> - 2016-02-18 10:07 -0600
            Re: Kepler's 3rd with adjusted orbital periods Peter Riedt <riedt1@yahoo.co.uk> - 2016-02-18 16:16 -0800
      Re: Kepler's 3rd with adjusted orbital periods Poutnik <poutnik4nntp@gmail.com> - 2016-02-18 07:27 +0100

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