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Re: FT Taskforce and Fleet Actions

From: "Jerry Acord" <acord@i...>
Date: Tue, 7 Aug 2001 09:25:29 -0400
Subject: Re: FT Taskforce and Fleet Actions

> > Hmm, More than Honor has the Hyper Limit based on the spectral class
> > of the star. The Sun is a G2 Dwarf (Main Sequence) and has a
> > Hyperlimit at 21.12 light minutes.
>
> 2.5AU, then.
>
> > I'm not sure why David bases it on
> > spectral type and not mass as he has the hyper limit for a red giant
> > as 5.64 LM.
>
> I haven't seen that one.  Is that inside the star?  Might he be
> thinking of the amount of energy rather than mass?

Let me de-lurk long enough to say that the Sun will become a red giant
once
its hydrogen supply is essentially exhausted -- and that red giant won't
mysteriously suddenly get more massive.  As for the radius, figures vary
but
most likely the Earth and maybe Mars would be "swallowed" by the
expanding
solar surface.	Perhaps the 5.64 LM figure is distance from the surface,
and
not center?

A note on spectral type and mass: G2 is spectral type, dwarf/Main
Sequence
(V) in combination with G2 gives you the mass, so saying G2 V gives you
both...  Admittedly, "red giant" is a somewhat nebulous (!) term and
could
imply something more massive than what the Sun will become (but not much
more!).

Maybe one solar mass concentrated into a G2 V star warps spacetime much
more
"steeply" than that same solar mass distributed over the larger volume
of a
red giant, making an FTL jump more difficult close to the G2V than it is
close to the red giant...?

Jerry Acord
ex-astroman


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