Star profile

Omega 2 Scorpii

3D likeness based on its real data · class G · ~5,500 K

What is Omega 2 Scorpii

Omega-2 Scorpii forms an optical pair with its sister Omega-1 at the head of the Scorpion, just west of red Antares. A yellow type G giant some 291 light-years away, its hue resembles the Sun's but belongs to a much older, far more swollen star. It is a member of the Scorpius–Centaurus association, the largest grouping of young stars near the solar system, though it itself is already crossing the autumn of its stellar biography.

Where it is and when to see it

Omega 2 Scorpii 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

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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

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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 Omega 2 Scorpii

Constellation: Scorpius
Apparent magnitude: 4.31
Distance: 290.7 light years
Coordinates (J2000): RA 241.851° · Dec -20.869°
Catalogue: HIP 78990 · HD 144608

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

Other stars in Scorpius

Scorpius has 104 stars in Stelvia's catalogue. Here are a few of them.

See all 104 stars in Scorpius