Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > sci.physics.relativity > #375458

Re: All orbits are swiveling ellipses albeit very small is the norm

From Sylvia Else <sylvia@not.at.this.address>
Newsgroups sci.physics.relativity
Subject Re: All orbits are swiveling ellipses albeit very small is the norm
Date 2016-02-03 23:41 +1100
Message-ID <dheas2FlmhU1@mid.individual.net> (permalink)
References (1 earlier) <23d72d07-216c-4707-9947-9e4b9eb391df@googlegroups.com> <yKWdnWKxxK2xwTnLnZ2dnUU7_82dnZ2d@giganews.com> <a35469db-c7ed-4a37-9071-07b982a332e9@googlegroups.com> <f2f87f38-f3f3-46ef-b6a7-07dcc0e852cc@googlegroups.com> <d909ef8a-1215-48a5-b7b8-c4cdb34caea1@googlegroups.com>

Show all headers | View raw


On 3/02/2016 2:42 PM, John Gogo wrote:
> On Tuesday, January 26, 2016 at 7:27:49 PM UTC-6, John Gogo wrote:
>> On Tuesday, January 26, 2016 at 5:01:59 PM UTC-6, John Gogo wrote:
>>> On Saturday, January 23, 2016 at 11:07:59 PM UTC-6, tjrob137 wrote:
>>>> On 1/23/16 1/23/16   9:01 PM, John Gogo wrote:
>>>>> So, you are basically saying that orbits are mostly, nearly perfectly
>>>>> circular- which is what I have been saying.
>>>>
>>>> And you are wrong. Yes, the eight planets have reasonably circular orbits except
>>>> for Mercury. But most large asteroids and dwarf planets like Pluto do not have
>>>> circular orbits, and there are more of them than planets. Moreover, there are
>>>> over 700 comets that have been observed, and NONE of them have an orbit that is
>>>> anywhere close to circular.
>>>>
>>>> Part of this is selection bias -- to be notable an orbiting object must be
>>>> observed. But if an inner solar system object had an eccentricity comparable to
>>>> a long-period comet (0.97-0.99), it would never have been observed by humans
>>>> because it would have melted or broken up long ago (coming so close to the sun).
>>>> So the only objects in highly elliptical orbits are far from the sun and have
>>>> periods of hundred to thousands of years (or longer, c.f. the newly discovered
>>>> "Planet 9"); Halley's comet is a rarity (period only 75 years).
>>>>
>>>> 	Mathematically, the set of circular orbits is minuscule
>>>> 	within the set of all possible orbits. That is, the vast
>>>> 	majority of all possible orbits are not circular at all.
>>>>
>>>> In addition, most extrasolar planets whose eccentricities are known have values
>>>> more than ten times that of earth.
>>>>
>>>> 	It's remarkable (and sad) that you have opinions on so many
>>>> 	things you clearly know nothing about. You really should
>>>> 	learn how to recognize when you don't know something.
>>>>
>>>>
>>>> Tom Roberts
>>> ...and I am sure the gravity question in involved in there also...
>>
>> Did I mention all planets travel on a different ecliptical plane also... and this is why we perceive elliptically oval observations.
>
> It's best to freeze instantaneous amounts of time and then measuring the change through time, astronomically isn't it?
>
More gibberish from the Gogo.

Sylvia.

Back to sci.physics.relativity | Previous | NextPrevious in thread | Find similar | Unroll thread


Thread

All orbits are swiveling ellipses albeit very small is the norm jamesl51165@gmail.com - 2016-01-23 12:42 -0800
  Re: All orbits are swiveling ellipses albeit very small is the norm John Gogo <jfgogo22@yahoo.com> - 2016-01-23 19:01 -0800
    Re: All orbits are swiveling ellipses albeit very small is the norm John Gogo <jfgogo22@yahoo.com> - 2016-01-23 20:35 -0800
    Re: All orbits are swiveling ellipses albeit very small is the norm Tom Roberts <tjroberts137@sbcglobal.net> - 2016-01-23 23:07 -0600
      Re: All orbits are swiveling ellipses albeit very small is the norm Watto Chewbacca <watchu@wattochewbacca.org> - 2016-01-24 21:12 +0000
        Re: All orbits are swiveling ellipses albeit very small is the norm "Paul B. Andersen" <relativity@paulba.no> - 2016-01-25 20:16 +0100
      Re: All orbits are swiveling ellipses albeit very small is the norm Sylvia Else <sylvia@not.at.this.address> - 2016-01-25 15:18 +1100
        Re: All orbits are swiveling ellipses albeit very small is the norm jamesl51165@gmail.com - 2016-01-25 08:41 -0800
          Re: All orbits are swiveling ellipses albeit very small is the norm Sylvia Else <sylvia@not.at.this.address> - 2016-01-26 10:17 +1100
          Re: All orbits are swiveling ellipses albeit very small is the norm John Gogo <jfgogo22@yahoo.com> - 2016-01-26 14:57 -0800
      Re: All orbits are swiveling ellipses albeit very small is the norm John Gogo <jfgogo22@yahoo.com> - 2016-01-26 14:59 -0800
      Re: All orbits are swiveling ellipses albeit very small is the norm John Gogo <jfgogo22@yahoo.com> - 2016-01-26 15:01 -0800
        Re: All orbits are swiveling ellipses albeit very small is the norm John Gogo <jfgogo22@yahoo.com> - 2016-01-26 17:27 -0800
          Re: All orbits are swiveling ellipses albeit very small is the norm John Gogo <jfgogo22@yahoo.com> - 2016-02-02 19:42 -0800
            Re: All orbits are swiveling ellipses albeit very small is the norm Sylvia Else <sylvia@not.at.this.address> - 2016-02-03 23:41 +1100

csiph-web