Octans: The Octant


Octans, The Octant

Octans as depicted by its creator, Nicolas Louis de La Caille.

Octans Constellation Profile
Abbreviation: Oct Genitive: Octantis Origin: Lacaille
Location: Southern Hemisphere Size/Area: 291 sq. deg. Size Rank: 50
On Meridian: 9pm September 20th Best View (North): Best View (South):
Bordering Constellations: Chamaeleon, Mensa, Hydrus, Tucana, Indus, Pavo, Apus


The Myth Behind the Constellation Octans

In 1730 John Hadley invented the reflecting octant, and instrument used for navigation.  This invention was honored by Nicolas-Louis de La Caille with the publication of his 1756 planisphere of the southern stars.  The constellation was named l’Octans de Reflexion on that chart, but he changed it to Octans, its current name, for the planisphere’s second edition.

Octans Constellation Points of Interest

Interesting stars and objects.

Bright Stars in Octans

These are no stars in Octans with a magnitude of 3.0 or brighter.