Re: [nbos] Star Chart Base Data Release.Nyrath the nearly wise Mon Jun 13th, 2011On 6/13/2011 2:59 PM, Robert Graham wrote:

>

> This is from memory Dalton, I can't find the original Excel database which

> had a lot of the original calculation data..

>

> But it is

>

> x = Distance * cos(RA) * Cose(Dec)

> y = Distance * sin(Dec)

> z = Dist * Cos(Dec) * Sin(RA)

>

> where distance = r in the table.. from memory.. It's been a while and I did

> it from a set of books etc I've been trying to find my old excel file.

The full equations are here

http://www.projectrho.com/smap03.html

http://www.projectrho.com/smap04.html

there are a couple of star catalogs here

http://www.projectrho.com/smap06.html

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