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Star profile

Beta Triangulum

3D likeness based on its real data · class A · ~8,500 K

What is Beta Triangulum

Beta Trianguli is the brightest beacon of the modest Triangle —three points that the ancients saw as a delta traced north of Aries—. At some 127 light-years, its white type-A glow conceals a spectroscopic system whose two components orbit each other in barely thirty-one days. A discreet star that nonetheless anchors one of the cleanest constellations of the northern autumn sky.

Where it is and when to see it

Beta Triangulum lies in the northern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is November: 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 Beta Triangulum

Constellation
Triangulum
Apparent magnitude
3.00
Distance
126.9 light years
Coordinates (J2000)
RA 32.386° · Dec 34.987°
Catalogue
HIP 10064 · HD 13161

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

Other stars in Triangulum

Triangulum has 18 stars in Stelvia's catalogue. Here are a few of them.

See all 18 stars in Triangulum