[AstroPy] Is There an AstroCalc Modulo?

Paul Barrett pebarrett@gmail....
Wed Jan 13 09:35:32 CST 2010


Thanks for pointing this out to me.  I'll take a look at it and see
what else can be done.

I have two goals in mind for this library: 1) to provide a higher
level interface than what is typically found by just wrapping a C or
FORTRAN library, and 2) to vectorize it for use with lists or arrays.
An example of #1 is converting a position at a particular epoch in
B1950 to one in J2000 in a single function or method call.  Often you
have to string together two or three different function calls to get
the desired result.  As for #2, it would be nice to provide a list of
stellar positions and have the function or method return a list of new
positions.  This is not only faster for large lists, but more

If you are interested in participating, we would welcome the help.

 -- Paul

On Sun, Jan 10, 2010 at 6:44 PM, Jaap Spies <jaapspies@home.nl> wrote:
> Paul Barrett wrote:
>> Note that there is also the NOVAS library from the US Naval
>> Observatory, which does not have the licensing restrictions that
>> SLAlib has.  However, currently there are no Python binding for this
>> library.  It is my hope to provide some one day.
> Long time ago I made this:
> Pynovas: http://pynovas.sourceforge.net/
> Maybe someone (me?) can pick this up?
> Jaap

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