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Star profile

Kappa 1 Apus

Variable star
3D likeness based on its real data · class B · ~15,000 K

What is Kappa 1 Apus

Kappa-1 Apodis is a spectroscopic binary system some 1,060 light-years away, made of a Be star and a rare subdwarf O companion circling each other every 192 days. The Be spins at dizzying speed and is wrapped in an unstable circumstellar disk that turns it into a Gamma Cassiopeiae-type variable, oscillating between magnitudes 5.43 and 5.61. An exotic pairing —hot ember and subdwarf— in the circumpolar Bird of Paradise.

Where it is and when to see it

Kappa 1 Apus lies in the southern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is June: 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.

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 Kappa 1 Apus

Constellation
Apus
Apparent magnitude
5.40
Distance
1240.3 light years
Coordinates (J2000)
RA 232.878° · Dec -73.390°
Catalogue
HIP 76013 · HD 137387

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

Other stars in Apus

Apus has 21 stars in Stelvia's catalogue. Here are a few of them.

See all 21 stars in Apus