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Re: Are Space Flights Always Limited to the Solar System Plane?

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On Thu, 13 Jul 2017 16:33:57 -0500, Serg io wrote:

> 
> lots of transfer of orbit stuff here;
> 
> http://ccar.colorado.edu/asen5050/projects/projects_2012/reid/
> 
> 
> Ulysses was one
>

Ulysses was indeed a "weird" mission.  To orbit the sun the spacecraft
needed to first be sent to Jupiter!  The solar orbit has it's aphelion
at Jupiter!

The web site gives the story:

"Direct injection into a solar polar orbit from the Earth is not feasible,
because the energy required cannot be provided even by the most powerful
launch vehicles available today. The energy needed is so much, because the
Earth itself orbits the Sun at a speed of 30 kms-1 in a plane perpendicular
to the desired solar polar orbit and the energy imparted to a space probe
must cancel out this motion in addition to providing the correct polar trajectory...
A polar orbit around the Sun can be achieved, however, by taking advantage of
a gravity assist by another planet..."

http://sci.esa.int/ulysses/31043-orbit-navigation

It seems that a direct polar orbit around the sun, with both aphelion and
perihelion within the orbit of planet Mercury, would be practically impossible.

I wonder if pre-positioning large stocks of fuel in space, followed by
docking procedures after spacecraft launch, could ever accomplish the goal.

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Thread

Are Space Flights Always Limited to the Solar System Plane? "F. Russell" <fr@random.info> - 2017-07-13 18:45 +0000
  Re: Are Space Flights Always Limited to the Solar System Plane? Poutnik <poutnik4nntp@gmail.com> - 2017-07-13 21:18 +0200
  Re: Are Space Flights Always Limited to the Solar System Plane? Mahipal <mahipal7638@gmail.com> - 2017-07-13 13:32 -0700
    Re: Are Space Flights Always Limited to the Solar System Plane? "F. Russell" <fr@random.info> - 2017-07-13 21:15 +0000
      Re: Are Space Flights Always Limited to the Solar System Plane? Serg io <invaalid@invalid.com> - 2017-07-13 16:22 -0500
        Re: Are Space Flights Always Limited to the Solar System Plane? Serg io <invaalid@invalid.com> - 2017-07-13 16:33 -0500
          Re: Are Space Flights Always Limited to the Solar System Plane? "F. Russell" <fr@random.info> - 2017-07-14 00:14 +0000
            Re: Are Space Flights Always Limited to the Solar System Plane? Serg io <invaalid@invalid.com> - 2017-07-13 19:46 -0500
            Re: Are Space Flights Always Limited to the Solar System Plane? Poutnik <poutnik4nntp@gmail.com> - 2017-07-14 07:30 +0200
              Re: Are Space Flights Always Limited to the Solar System Plane? "F. Russell" <fr@random.info> - 2017-07-14 09:03 +0000
                Re: Are Space Flights Always Limited to the Solar System Plane? Poutnik <poutnik4nntp@gmail.com> - 2017-07-14 12:21 +0200
            Re: Are Space Flights Always Limited to the Solar System Plane? Wally W. <ww84wa@aim.com> - 2017-07-14 08:10 -0400
              Re: Are Space Flights Always Limited to the Solar System Plane? "F. Russell" <fr@random.info> - 2017-07-14 23:14 +0000
                Re: Are Space Flights Always Limited to the Solar System Plane? Poutnik <poutnik4nntp@gmail.com> - 2017-07-15 11:04 +0200
                Re: Are Space Flights Always Limited to the Solar System Plane? Poutnik <poutnik4nntp@gmail.com> - 2017-07-15 11:23 +0200
                Re: Are Space Flights Always Limited to the Solar System Plane? Poutnik <poutnik4nntp@gmail.com> - 2017-07-15 13:34 +0200
                Re: Are Space Flights Always Limited to the Solar System Plane? "F. Russell" <fr@random.info> - 2017-07-15 12:55 +0000
                Re: Are Space Flights Always Limited to the Solar System Plane? Poutnik <poutnik4nntp@gmail.com> - 2017-07-15 15:18 +0200
                Re: Are Space Flights Always Limited to the Solar System Plane? Poutnik <poutnik4nntp@gmail.com> - 2017-07-15 16:14 +0200
      Re: Are Space Flights Always Limited to the Solar System Plane? Mahipal <mahipal7638@gmail.com> - 2017-07-13 19:26 -0700
        Re: Are Space Flights Always Limited to the Solar System Plane? "F. Russell" <fr@random.info> - 2017-07-14 09:11 +0000
          Re: Are Space Flights Always Limited to the Solar System Plane? Mahipal <mahipal7638@gmail.com> - 2017-07-14 04:09 -0700
            Re: Are Space Flights Always Limited to the Solar System Plane? Edward Prochak <edprochak@gmail.com> - 2017-07-14 05:22 -0700
              Re: Are Space Flights Always Limited to the Solar System Plane? Mahipal <mahipal7638@gmail.com> - 2017-07-14 06:33 -0700
            Re: Are Space Flights Always Limited to the Solar System Plane? fr314159@gmail.com - 2017-07-14 07:30 -0700
              Re: Are Space Flights Always Limited to the Solar System Plane? Mahipal <mahipal7638@gmail.com> - 2017-07-14 08:05 -0700
                Re: Are Space Flights Always Limited to the Solar System Plane? Serg io <invaalid@invalid.com> - 2017-07-14 11:50 -0500
      Re: Are Space Flights Always Limited to the Solar System Plane? Poutnik <poutnik4nntp@gmail.com> - 2017-07-14 06:43 +0200
  Re: Are Space Flights Always Limited to the Solar System Plane? "Dave" <dave1981@hotmail.com> - 2017-07-15 07:10 -0700
    Re: Are Space Flights Always Limited to the Solar System Plane? Poutnik <poutnik4nntp@gmail.com> - 2017-07-15 16:18 +0200
  Re: Are Space Flights Always Limited to the Solar System Plane? "reber G=emc^2" <herbertglazier0@gmail.com> - 2017-07-15 13:56 -0700
    Re: Are Space Flights Always Limited to the Solar System Plane? "hanson" <hanson@quick.net> - 2017-07-15 17:16 -0700

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