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arts / rec.arts.sf.written / Re: Trying not to spoil this one.

SubjectAuthor
* Trying not to spoil this one.Robert Carnegie
+- Re: Trying not to spoil this one.ted@loft.tnolan.com (Ted Nolan
+- Re: Trying not to spoil this one.pete...@gmail.com
`* Re: Trying not to spoil this one.Robert Woodward
 `- Re: Trying not to spoil this one.pete...@gmail.com

1
Trying not to spoil this one.

<cc6c5701-1e21-4dc6-823a-56baa0aaa847n@googlegroups.com>

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Subject: Trying not to spoil this one.
From: rja.carn...@excite.com (Robert Carnegie)
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 by: Robert Carnegie - Thu, 23 Mar 2023 18:50 UTC

I haven't read it, I read a summary, but in Newton's physics or
Einstein's, how does a spaceship accidentally crash into the sun?

To reach the sun takes a /lot/ of thrust.

(naq jbhyqag vg or fnsre gb tb ng avtug)

Re: Trying not to spoil this one.

<k83m72FakguU1@mid.individual.net>

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From: ...@ednolan (ted@loft.tnolan.com (Ted Nolan)
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Subject: Re: Trying not to spoil this one.
Date: 23 Mar 2023 19:05:06 GMT
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 by: ted@loft.tnolan.com - Thu, 23 Mar 2023 19:05 UTC

In article <cc6c5701-1e21-4dc6-823a-56baa0aaa847n@googlegroups.com>,
Robert Carnegie <rja.carnegie@excite.com> wrote:
>I haven't read it, I read a summary, but in Newton's physics or
>Einstein's, how does a spaceship accidentally crash into the sun?
>

It was nighttime.
--
columbiaclosings.com
What's not in Columbia anymore..

Re: Trying not to spoil this one.

<250a2f4c-1cb6-4046-aa6f-23ec0102f214n@googlegroups.com>

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Subject: Re: Trying not to spoil this one.
From: petert...@gmail.com (pete...@gmail.com)
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 by: pete...@gmail.com - Thu, 23 Mar 2023 20:12 UTC

On Thursday, March 23, 2023 at 2:50:05 PM UTC-4, Robert Carnegie wrote:
> I haven't read it, I read a summary, but in Newton's physics or
> Einstein's, how does a spaceship accidentally crash into the sun?
>
> To reach the sun takes a /lot/ of thrust.
>
> (naq jbhyqag vg or fnsre gb tb ng avtug)

It depends on what vector you start. Anything in a
vaguely planet-like orbit, its very difficult. A cometary
orbit, no so hard. Comets have been seen striking the sun
numerous times:

https://www.space.com/33651-comet-death-dive-into-sun-video.html

pt

Re: Trying not to spoil this one.

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From: rober...@drizzle.com (Robert Woodward)
Newsgroups: rec.arts.sf.written
Subject: Re: Trying not to spoil this one.
Date: Thu, 23 Mar 2023 22:16:40 -0700
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 by: Robert Woodward - Fri, 24 Mar 2023 05:16 UTC

In article <cc6c5701-1e21-4dc6-823a-56baa0aaa847n@googlegroups.com>,
Robert Carnegie <rja.carnegie@excite.com> wrote:

> I haven't read it, I read a summary, but in Newton's physics or
> Einstein's, how does a spaceship accidentally crash into the sun?
>
> To reach the sun takes a /lot/ of thrust.
>

IIRC, the least fuel course would be:

1) Hohmann transfer to Jupiter (arriving ahead of Jupiter in its orbit
around the Sun - takes years)

2) Inserting into a retrograde orbit around Jupiter

3) A fuel burn in Jupiter orbit to escape (only a few hours)

4) Resulting in no rotational velocity about the Sun and direct fall
into the Sun.

--
"We have advanced to new and surprising levels of bafflement."
Imperial Auditor Miles Vorkosigan describes progress in _Komarr_.
—-----------------------------------------------------
Robert Woodward robertaw@drizzle.com

Re: Trying not to spoil this one.

<3f6acc32-6024-46c0-9201-b307d22e1b4fn@googlegroups.com>

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Subject: Re: Trying not to spoil this one.
From: petert...@gmail.com (pete...@gmail.com)
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 by: pete...@gmail.com - Fri, 24 Mar 2023 21:00 UTC

On Friday, March 24, 2023 at 1:16:45 AM UTC-4, Robert Woodward wrote:
> In article <cc6c5701-1e21-4dc6...@googlegroups.com>,
> Robert Carnegie <rja.ca...@excite.com> wrote:
> > I haven't read it, I read a summary, but in Newton's physics or
> > Einstein's, how does a spaceship accidentally crash into the sun?
> >
> > To reach the sun takes a /lot/ of thrust.
> >
> IIRC, the least fuel course would be:
>
> 1) Hohmann transfer to Jupiter (arriving ahead of Jupiter in its orbit
> around the Sun - takes years)
>
> 2) Inserting into a retrograde orbit around Jupiter
>
> 3) A fuel burn in Jupiter orbit to escape (only a few hours)
>
> 4) Resulting in no rotational velocity about the Sun and direct fall
> into the Sun.

The Parker Solar probe is using repeated close encounters with Venus to
lower its perihelion.

Pt

1
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