Re: [nbos] AS2 star positions and map views
Exile In Paradise
Tue Jan 30th, 2007
On Tue, 2007-01-30 at 08:49 -0500, Nyrath the nearly wise wrote:
> Mike Oliver wrote:
> The equations here:
> http://www.projectrho.com/smap03.html
> will convert RA and Dec into celestial x,y,z coords.
> The xy plane is the plane of Earth's equator, and
> the positive X axis points at the First point of Aries.
>
> The equations here:
> http://www.projectrho.com/smap04.html
> will convert celestial x,y,z into galactic x,y,z.
> The xy plane is the plane of the galaxy, and
> the positive X axis points at the galactic core.
>
> You should be able to set these up in a spreadsheet
> to convert your star data.

Before I found AstroSynthesis on the net, I had
written a Java app to software-render the Traveller
2300 Near Star List in 3D, using those very equations.
They work great.
--
Robert "Exile In Paradise" Murphey
Census Taker to Housewife:
Did you ever have the measles, and, if so, how many?


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