Circinus
Origin
Circinus represents a drafting compass and was invented in the 1750s by Nicolas Louis de Lacaille. It is very small and has few notable objects.
Bright Stars
The brightest stars in Circinus are Alpha Circini (magnitude 3.41), Beta Circini (magnitude 4.16), and Gamma Circini (magnitude 4.51).


Credit: E. Slawik/NOIRLab/NSF/AURA/M. Zamani
Notable Objects
One object in Circinus that can be seen with a telescope or binoculars is the open cluster NGC 5823, which covers an area about half that of the full Moon and is about magnitude 8.5.
