Star profile

Dschubba

Delta Scorpii · Scorpius

Variable star

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

What is Dschubba

Dschubba traces the brow of Scorpius, just above its curving head. The name, from the Arabic «al-jabhah», means precisely that: the forehead. A hot variable B-class star 491 light years away, it offered a surprise in the year 2000, when an unexpected outburst doubled its brightness and revealed a circumstellar disk of gas spinning swiftly around it.

Where it is and when to see it

Dschubba 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 16° above the horizon.
From New York it culminates about 27° above the horizon.
From Sydney it culminates about 79° above the horizon.

It can be seen from anywhere south of 67° N.

It ranks no. 4 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 490 years ago.

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Astronomical data for Dschubba

Constellation: Scorpius
Apparent magnitude: 2.29
Distance: 491.3 light years
Coordinates (J2000): RA 240.083° · Dec -22.622°
Catalogue: HIP 78401 · HD 143275

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Other stars in Scorpius

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

See all 104 stars in Scorpius