Eta Octantis
Eta Octantis, Latinized from η Octantis, is a solitary star located in the southern circumpolar constellation Octans. It has an apparent magnitude of 6.19, making it faintly visible to the naked eye. The object is situated at a distance of 358 light years but is approaching the Solar System with a heliocentric radial velocity of . Eta Octantis has a stellar classification of A1 Va, indicating that it is an ordinary A-type main sequence star. At present it has 2.37 times the Sun's mass and 2.6 times the Sun's radius. It shines with a luminosity of  from its photosphere at an effective temperature of 9,500 K, giving a white hue. Eta Octantis is a rapidly rotating star, with a projected rotational velocity of , and is estimated to be 547 million years old, having completed 72% of its main sequence lifetime. References

Octans
A-type main-sequence stars
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Octantis, 11
Octantis, Eta