Two Mad Geeks

The Strasbourg astronomical Data Center (CDS) collects and distributes astronomical data catalogues, related to observations of stars and galaxies, and other galactic and extragalactic objects. Catalogues about the solar system bodies and atomic data are also included.

Link: Strasbourg Astronomical Data Center

A “constellation family” is a set grouping of constellations. This site has a great breakdown of each constellation family from The Ursa Major Family to The La Caille Family.

Link: Seds