Subject:
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Re: Local space ACK! Error in distance table!
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Newsgroups:
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lugnet.space
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Date:
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Sat, 27 Nov 1999 14:58:36 GMT
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Viewed:
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1061 times
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At 12:00 AM 11/27/1999 , John J. Ladasky Jr. wrote:
> > Every road atlas needs a mileage chart, right? 8^) I converted the
> > right ascensions, declinations, and parallaxes into XYZ coordinates,
> > and computed the following distance table...
> >
> > http://cmgm.stanford.edu/~jladasky/distance_table.txt
>
> Oops. I went back and plotted the positions of my converted points, and
> discovered that they DIDN'T MATCH THE IMAGE that I posted! So I
> reviewed my math, and found an error in the formulae I used to convert
> polar to rectilinear coordinates.
>
> The URL listed above now has a corrected distance table! SORRY! As a
> minor bonus, I gave Proxima Centauri a separate entry, seeing as how
> it's around a quarter of a light-year away from alpha Centauri A and B.
Not a big problem. Thanks for correcting it though.
Sometime I've gotta get to my Zacktron planets section and also do
something with a space map of their territory. That image helps
TREMENDOUSLY. Thanks for everything, John!
-Tim
http://www.zacktron.com
http://www.ldraw.org
AIM: timcourtne
ICQ: 23951114
If you don't believe in Gosh, you'll go to Heck, where you'll face eternal
darnation.
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Message is in Reply To:
 | | Local space -- here's a real map!
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| (...) Hey, look what I happened to find in my archive of downloads -- a 3D map of exactly these stars! (URL) is actually one double star system, UV Ceti, that MIGHT be closer than Sirius, which is not pictured on this map. Various studies disagree. (...) (25 years ago, 20-Nov-99, to lugnet.space)
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