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Groups > sci.physics.relativity > #375458
| 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> |
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.
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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
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