description Circinus Overview
Circinus is a small constellation in the southern celestial hemisphere whose name is Latin for a drawing compass, the drafting instrument used to draw circles. French astronomer Nicolas-Louis de Lacaille introduced it in the mid-18th century while mapping the southern sky, and the International Astronomical Union recognizes it as one of the modern constellations. Its stars are relatively faint, so it is mainly of interest to observers in southern or low-latitude skies.
help Circinus FAQ
What does the name Circinus mean?
Circinus is Latin for a drawing compass, the drafting tool used to draw circles. Nicolas-Louis de Lacaille introduced the constellation while mapping the southern sky in the 18th century.
Where can Circinus be seen?
Circinus is a small constellation in the southern celestial hemisphere. It is most easily viewed from southern latitudes, while observers far north may not see it at all.
Is Circinus one of the modern official constellations?
Yes. Circinus is one of the 88 constellations recognized by the International Astronomical Union.
What notable object is in Circinus?
Circinus contains the Circinus Galaxy, an active spiral galaxy with a bright central region. The constellation also includes Alpha Circini, a well-known rapidly oscillating Ap star.
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