Acrux and Mimosa make up one foot of the Great Rhea, a constellation encompassing Centaurus and Circinus along with the two bright stars. |
Circinatus is from Circinus, a pair of compasses, hence means rounded like a circle. |
Circinus also offers a dark and reflection nebulae in its circle of elusive objects. |
At a distance of only 13 million light-years, the Circinus Galaxy contains one of the closest and brightest active galactic nuclei. |
This makes Circinus X-1 the youngest so-called X-ray binary known. |
Their rhea is attacked by two dogs, represented by bright stars in Centaurus and Circinus. |