Star profile

Theta Octans

3D likeness based on its real data · class K · ~4,200 K

What is Theta Octans

Theta Octantis is an orange giant 217 light-years away, in the constellation surrounding the south celestial pole — a region of sky no European navigator saw before the sixteenth century. There is no bright southern pole star here: only a mosaic of faint lights, and among them Theta Octantis traces a warm point near the very axis around which the whole firmament appears to turn.

Where it is and when to see it

Theta Octans lies in the southern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is July: the Sun sits at the opposite point of the sky and the star culminates around midnight. How high it climbs above the horizon depends on the latitude you watch from.

Find it on the sky map

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The signature wall

Stelvia's sky works like a signature wall: anyone can leave their name and a message on a real star, and that signature goes up on the map for everyone to read. Signing is free.

A signature without a lock can be replaced by someone else's. The lock makes the signature permanent and lets you choose a symbolic name for the star, always shown next to the star's catalogue identifier. How the lock works

If you don't have an account yet, we'll ask for an email to confirm it's you: we send you a link and that's it, no password.

Write my signature

A public signature from a real person. The chosen name is a symbolic denomination within Stelvia, with no official standing or IAU recognition: the sky is not for sale and belongs to no one.

Astronomical data for Theta Octans

Constellation: Octans
Apparent magnitude: 4.78
Distance: 217.2 light years
Coordinates (J2000): RA 0.399° · Dec -77.066°
Catalogue: HIP 122 · HD 224889

A symbolic commemorative gift: neither the signature nor the chosen name implies ownership of the star or recognition by the IAU.

Other stars in Octans

Octans has 35 stars in Stelvia's catalogue. Here are a few of them.

See all 35 stars in Octans