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Star profile

Beta Ara

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

What is Beta Ara

Beta Arae shines as the second jewel of the Altar, an orange supergiant whose light has travelled some 646 years to reach us. Its cool K-type spectrum hides a colossal power, burning with the strength of thousands of suns under the southern sky. To the ancient Greeks, Ara was the altar where the gods sealed their pact against the Titans —and this orange ember feels like the last glowing coal of that sacred fire.

Where it is and when to see it

Beta Ara 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, when it culminates around midnight.

  • From London it never rises above the horizon.
  • From New York it never rises above the horizon.
  • From Sydney it culminates about 68° above the horizon.

It can be seen from anywhere south of 34° N.

It is the brightest of the 43 stars of Ara in our catalogue, which makes it the best starting point for finding your way around the constellation.

The light you see today left it about 650 years ago.

Find it on the sky map

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

Leave your signature on Beta Ara

Your name and a message go up on the map for everyone to read. Signing is free.

Without a lock, someone else can replace your signature. How the lock works

We'll ask for an email to confirm it's you, 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 Beta Ara

Constellation
Ara
Apparent magnitude
2.84
Distance
645.9 light years
Coordinates (J2000)
RA 261.325° · Dec -55.530°
Catalogue
HIP 85258 · HD 157244

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

Other stars in Ara

Ara has 43 stars in Stelvia's catalogue. Here are a few of them.

See all 43 stars in Ara