Blanco 1 (ζ Sculptoris cluster) is a nearby open cluster of stars located around 850 light years away from the Sun in the southern constellation of Sculptor near the star ζ Sculptoris.
It was discovered by Puerto Rican astronomer Víctor Manuel Blanco in 1959,[1] who noticed an unusually high proportion of A-type stars in an area spanning 1.5°.
[2] This cluster is relatively young, with an age of about 100–150 million years.
It has a cross-sectional magnitudal density of about 30 per square parsec: less than half that of the Pleiades cluster.
Of the confirmed members, eight have been found to radiate an excess of infrared energy, indicating that they host orbiting debris disks.