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Star profile

Upsilon 2 Centauri

Highly luminous star
3D likeness based on its real data · class F · ~6,500 K

What is Upsilon 2 Centauri

Upsilon-2 Centauri is a yellow F7 bright giant, nearly seven solar masses and around 3,900 times the Sun's luminosity. Its distance of about 1,270 light-years hides its true power behind a modest apparent glow. Place it where Sirius sits and it would rule the night sky. It belongs to a young generation barely 46 million years old, raised in the rich nursery of Centaurus.

Where it is and when to see it

Upsilon 2 Centauri lies in the southern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is May: 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

It opens in your browser. Free, no account, nothing to install.

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 Upsilon 2 Centauri

Constellation
Centaurus
Apparent magnitude
4.34
Distance
1269.3 light years
Coordinates (J2000)
RA 210.431° · Dec -45.603°
Catalogue
HIP 68523 · HD 122223

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

Other stars in Centaurus

Centaurus has 174 stars in Stelvia's catalogue. Here are a few of them.

See all 174 stars in Centaurus