We’ve just released Observatory 1.3.1 on the Mac App Store, an update focused on bug fixes.

It contains photometry enhancements and resolves a problem with the GCVS labels and tags for a few constellations.

In addition, we’ve added a section in the documentation about expert preferences in Observatory. These are obscure or experimental settings that have no corresponding UI controls in the Preferences window. You set them using the Terminal application (/Applications/Utilities/Terminal).

Release notes here.