Color-magnitude diagram of stars that are members of the Blanco 1 cluster

Color-magnitude diagram of stars that are members of the Blanco 1 cluster, along with some nearby non-members. The lithium-rich stars (red squares) show lithium absorption in their spectra, unlike the lithium-poor objects (blue circles). The boundary between the two groups depends on the age of the cluster, which the inset shows to be around 130 million years.

Credit:

International Gemini Observatory/NOIRLab/NSF/AURA

About the Image

Id:geminiann10019a
Type:Chart
Release date:Nov. 5, 2010, 4:21 p.m.
Related announcements:geminiann10019
Size:500 x 507 px

About the Object

Name:Blanco 1
Category:Illustrations

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