Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Per root star, the diversity index H among all constellations with that star (on the left y axis with triangles), and the number of constellations with that star (on the right y axis with dashes). Value 0.5 for diversity is marked with a dotted line, and the diversity markers are coloured differently above and below this. The mean diversity is H = 0.568. The alternating background emphasises root stars from the same IAU constellation.
