3. PhotutilsAstropy package for source detection and photometry. Maintainers: @larrybradley and @bsipocz
5. SpecutilsAn Astropy coordinated package for astronomical spectroscopy. Maintainers: @nmearl @crawfordsm @keflavich @eteq
6. CcdprocAstropy affiliated package for reducing optical/IR CCD data
8. PyvoAn Astropy affiliated package providing access to remote data and services of the Virtual observatory (VO) using Python.
11. AstroqueryFunctions and classes to access online data resources. Maintainers: @keflavich and @bsipocz and @ceb8
19. reprojectPython-based Astronomical image reprojection 🌌 - maintainer @astrofrog