Pinned

1. astropy/astropy Public

   Astronomy and astrophysics core library

   Python 3.6k 1.6k

2. gnudatalanguage/gdl Public

   GDL - GNU Data Language

   C++ 233 56

3. iraf-community/iraf Public

   IRAF - Image Reduction and Analysis Facility

   Logos 118 44

4. casacore/casacore Public

   Suite of C++ libraries for radio astronomy data processing

   C++ 98 85

5. iraf-community/pyraf Public

   Command language for IRAF based on Python.

   Python 46 18

6. Starlink/starjava Public

   Java applications initially developed for the Starlink Project but now developed independently

   HTML 76 21