Star profile

Jabbah

Nu Scorpii · Scorpius

Hot blue star

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

What is Jabbah

Jabbah is a hot blue star in the body of the Scorpion, its Arabic name «al-jabhah» meaning «the forehead». Telescopically it proves to be a multiple system, several blue suns bound by gravity into a small stellar court that the naked eye perceives as a single point. Its light departed 474 years ago, when Copernicus had only just published his revolutionary heliocentric hypothesis.

Where it is and when to see it

Jabbah 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, when it culminates around midnight.

From London it culminates about 19° above the horizon.
From New York it culminates about 30° above the horizon.
From Sydney it culminates about 76° above the horizon.

It can be seen from anywhere south of 71° N.

It ranks no. 20 in brightness among the 104 stars of Scorpius in our catalogue. To find it, start from Antares, the brightest: it lies about 8° away (a fist at arm's length covers about 10°).

The light you see today left it about 470 years ago.

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Astronomical data for Jabbah

Constellation: Scorpius
Apparent magnitude: 4.00
Distance: 474.1 light years
Coordinates (J2000): RA 242.999° · Dec -19.461°
Catalogue: HIP 79374 · HD 145502

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