[sci.space] Need 3-D Cordinates of stars.

FNRJH@ALASKA.BITNET (Robert Jessie Hale III) (01/26/89)

   My friend is working on a simulator in his spair time.   What little
there is of it.     He would like to know if their is a place or person
he can get the 3-d cord. of stars relative to some point in the galaxy.
    If so please write me at FNRJH@ALASKA

   Thanks.     Robert J. Hale  III       Director ISECCo

alastair@geovision.uucp (Alastair Mayer) (01/30/89)

In article <Added.kXrYD_y00Ui38REU8e@andrew.cmu.edu> <FNRJH%ALASKA.BITNET@vma.cc.cmu.edu> writes:
>
>   My friend is working on a simulator in his spair time.   What little
>there is of it.     He would like to know if their is a place or person
>he can get the 3-d cord. of stars relative to some point in the galaxy.
>    If so please write me at FNRJH@ALASKA
>
>   Thanks.     Robert J. Hale  III       Director ISECCo


Actually, yes.  Many astronomy books have such data - although often limited
to the few hundred nearest and/or brightest.  Check out star catalogs for
data on more stars.

The data is all relative to a very nearby point in the galaxy: here.
And there's a catch - the 3-D coordinates are usually based on a spherical
coordinate system: right ascension, declination, and radial distance.
However, it's a fairly simple matter to convert those to Cartiesian XYZ
coordinates, which I assume you're looking for.

Now, if there's a source of *machine-readable* star catalog data,  I'm sure
a number of people might be interested. (Like me, for example)
-- 
"The problem is not that spaceflight is expensive,  | Alastair J.W. Mayer
therefore only the government can do it, but that   | alastair@geovision.UUCP
only the government is doing spaceflight, therefore | al@BIX
it is expensive."                                   |