[AstroPy] Is There an AstroCalc Module?
Wed Dec 30 13:07:17 CST 2009
Before I install it, is there a document that summarizes what's in it?
That is, gives a brief summary of each function?
Russell Owen wrote:
> The RO package is pure python so I only have a source code version
> available. That is the one you want.
> I suggest you use "easy_install" or "pip" to install it.
> You can also install it by downloading it and running "setup.py
> install" in the main directory--though it may require setuptools. Once
> you have installed setuptools you have "easy_install" so you might as
> well use that. (pip also requires setuptools -- nearly any sort of
> installer does these days).
> Or if you wish to avoid setuptools then you can download the source
> and copy or move the "RO" directory (<package root>/python/RO) into
> your site-packages directory. I don't know where site-packages is on
> -- Russell
> On Dec 28, 2009, at 10:34 AM, Wayne Watson wrote:
>> Hi, I'm on Python 2.5, Windows. Are any of the downloads on the link
>> applicable to my situation? If I use it, where under c:/Python25 do I
>> put it? Lib?
>> Russell Owen wrote:
>>> There is various software that will perform astronomical
>>> transformations of time and position. I do not know what exists for
>>> projections (other than any projections that might exist in
>>> One option is RO.Astro
>>> <http://pypi.python.org/pypi?:action=display&name=RO>, which I
>>> wrote. The routines are easy to use (see documentation in doc
>>> strings) and the coordinate transformations are performed to high
>>> accuracy. It is pure python (though it uses numpy) so it is trivial
>>> to install and fully cross-platform, but not as fast as some other
>>> RO.Sph: handles computations in spherical coordinates (e.g. RA/Dec
>>> to Az/Alt). RO.Sph.coordConv is the "do it all" routine. It also has
>>> angSideAng, a routine to handle spherical geometry computations, and
>>> routines to convert between spherical and cartesian coordinates.
>>> RO.Cnv: handles computations in cartesian coordinates; this is where
>>> most of the real computations are performed
>>> RO.Tm: handles various time computations
>>> -- Russell
>>> On Dec 28, 2009, at 8:40 AM, Wayne Watson wrote:
>>>> See Subject. I'm looking for something like the methods described in
>>>> Meeus' Astro Formulae for Calculators. Something too that provides
>>>> rotation matrices, calculations to find sidereal time, and az
>>>> equal-distance projections.
>> Wayne Watson (Watson Adventures, Prop., Nevada City, CA)
>> (121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
>> Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700
>> feet "... humans'innate skills with
>> numbers isn't much
>> better than that of rats and
>> dolphins." -- Stanislas Dehaene,
>> neurosurgeon Web Page: <www.speckledwithstars.net/>
Wayne Watson (Watson Adventures, Prop., Nevada City, CA)
(121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet
"We're leaving you with a world that runs like
clockwork. And the clock it runs like is a cuckoo
clock." -- Frank Oppenheimer, physicist
Web Page: <www.speckledwithstars.net/>
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