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27 changes: 14 additions & 13 deletions README.rst
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**astLib** is divided into several modules:

* astCalc (general calculations, e.g. luminosity distance etc.)
* astCoords (coordinate conversions etc.)
* astImages (clip sections from .fits etc.)
* astPlots (provides a flexible image plot class, e.g. plot image with catalogue objects overlaid)
* astSED (calculate colours, magnitudes from stellar population models or spectral templates, fit photometric observations using stellar population models etc.)
* astStats (statistics, e.g. biweight location/scale estimators etc.)
* astWCS (routines for using FITS World Coordinate System information)
* :mod:`astLib.astCalc` (general calculations, e.g. luminosity distance etc.)
* :mod:`astLib.astCoords` (coordinate conversions etc.)
* :mod:`astLib.astImages` (clip sections from .fits etc.)
* :mod:`astLib.astPlots` (provides a flexible image plot class, e.g. plot image with catalogue objects overlaid)
* :mod:`astLib.astSED` (calculate colours, magnitudes from stellar population models or spectral templates, fit photometric observations using stellar population models etc.)
* :mod:`astLib.astStats` (statistics, e.g. biweight location/scale estimators etc.)
* :mod:`astLib.astWCS` (routines for using FITS World Coordinate System information)

The astWCS module is a higher level interface to PyWCSTools, a simple SWIG (http://www.swig.org) wrapping
of some of the routines from WCSTools by Jessica Mink (http://tdc-www.harvard.edu/software/wcstools/). It is
The astWCS module is a higher level interface to PyWCSTools, a simple `SWIG <http://www.swig.org>`_ wrapping
of some of the routines from `WCSTools <http://tdc-www.harvard.edu/software/wcstools/>`_ by Jessica Mink. It is
used by some routines in astCoords, astImages and astPlots.

The goal of **astLib** was to provide features useful to astronomers that are not included in the scipy
(http://scipy.org), numpy (http://numpy.scipy.org) or matplotlib (http://matplotlib.sourceforge.net) modules
on which astLib depends. For a far more extensive set of Python astronomy modules, see astropy
(http://www.astropy.org/).
The goal of **astLib** was to provide features useful to astronomers that are not included in the
`scipy <http://scipy.org>`_, `numpy <http://numpy.scipy.org>`_ or
`matplotlib <http://matplotlib.sourceforge.net>`_ modules
on which astLib depends. For a far more extensive set of Python astronomy modules, see
`astropy <http://www.astropy.org/>`_.

Some scripts using **astLib** can be found in the examples/ folder provided with the source code distribution.
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