Re: [nbos] Star Chart Base Data Release.
Dalton Calford
Tue Jun 14th, 2011
Is there a database of nebula and other stellar materials other than stars?

Best regards

Dalton

-----Original Message-----
From: nbossoftware-bounces-at-nbos.com [mailto:nbossoftware-bounces-at-nbos.com] On Behalf Of Robert Graham
Sent: Monday, June 13, 2011 8:55 PM
To: nyrath-at-projectrho.com; nbossoftware-at-nbos.com
Subject: Re: [nbos] Star Chart Base Data Release.

Lol actually those pages look awfully familiar and I do believe that is where I got the majority of the original calculations I used. So thank you for those they are back once again in my list of places to remember :)

The big thing is guys that I did these back when ASTRO 2 was in Beta, that's a few years back now.. I've released the dump in 'database' format because in database format you can manipulate it on a level you can not in a excel sheet or in the csv's I've dumped ie.. you can do a query to combine close stars etc.

It's just very hard to remember the exact calcs I used x amont of years ago.. I can however give the PHP if required for doing the data base dumps as they used to be created.

-Rob

-----Original Message-----
From: nbossoftware-bounces-at-nbos.com [mailto:nbossoftware-bounces-at-nbos.com]
On Behalf Of Nyrath the nearly wise
Sent: Tuesday, 14 June 2011 10:04 AM
To: nbossoftware-at-nbos.com
Subject: Re: [nbos] Star Chart Base Data Release.

On 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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