Barbá 2: A new supergiant-rich Galactic stellar cluster

We present a new supergiant-rich stellar cluster hidden by extinction and christen it as Barbá 2, in honor of its discoverer Rodolfo Barbá. The cluster is at a distance of 7.39+0.65-0.55 kpc and contains several supergiants, of which we provide spectral classifications for one blue, one yellow, and five red ones. The cluster extinction indicates an above-average grain-size (R_5495 ~ 3.7), its age has a minimum value of 10 Ma, and its core radius is 0.84±0.19 pc.

Related Organizations

Centro de Astrobiología
Spain
National Institute for Aerospace Technology
Spain

Keywords

Stellar clusters

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