Astropy is a community-driven Python package intended to contain much
of the core functionality and common tools needed for astronomy and
New and improved major functionality in this release includes:
* Most models now support parameters having units (i.e., being
* A new CCDData class that is directly useful for typical astronomical
images and implements the NDData interface.
* Coordinate frame objects can now carry proper motions and radial
velocities, and will carry them through and transform them between
frames. (This functionality is experimental and feedback is greatly
* Many of the typical mixin columns for astropy tables can now be
saved into ECSV files and fully round-tripped.
* The fft and direct versions of the convolution algorithm in
astropy.convolution are now more consistent and work better with
typical use cases.
* A variety of additions to the astropy.stats subpackage
In addition, hundreds of smaller improvements and fixes have been
made. An overview of the changes is provided at:
Astropy v2.0 now repaces v1.0 as the long term support release, and
will be supported until the end of 2019. The next major release of
Astropy (scheduled for January 2018) will only support Python 3.x. So
if you need to use Astropy in a very stable environment in Python 2.7,
you should continue to use the 2.0.x series after 3.0.x is released.
If you use Astropy directly for your work, or as a dependency to
another package, please remember to include the following
acknowledgment at the end of papers:
“This research made use of Astropy, a community-developed core Python
package for Astronomy (Astropy Collaboration, 2013).”
where (Astropy Collaboration, 2013) is a reference to the Astropy paper: