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Dschubba

Iclarclau, Delta Scorpii, 7 Scorpii

Proper NamesDschubba, Iclarclau (sometimes spelt Iclarclav)
Bayer DesignationDelta Scorpii
Flamsteed Number7 Scorpii
HR (BSC)5953
HD143275
ConstellationScorpius
Right Ascension16h 1m 21s
Declination-22° 40' 2"
Distance491 light years
151 parsecs
MagnitudeApparent: +2.3
Absolute: -3.6
Spectral ClassB0.3IV Blue Subgiant
Optimum VisibilityJune
NotesDschubba is a binary and possibly a ternary system, with the primary subgiant a variable star of the Gamma Cassiopeiae type. Rapid rotation causes material to erupt from Dschubba's equator, creating a ring of matter around the star, and causing its apparent brightness to vary over time.

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