The Double Main Sequence of Omega Centauri

Two distinct populations of stars are present in the globular cluster Omega Centauri, recognisable in this colour-brightness diagram that is based on data obtained via the HST image shown in ESO ESO Press Photo eso0509. The stars coloured in blue and in red are those for which a spectrum was acquired with the VLT.

Credit:

ESO

About the Image

Id:eso0509b
Type:Chart
Release date:15 March 2005
Related releases:eso0509
Size:2392 x 2503 px

About the Object

Name:Omega Centauri
Type:• Milky Way : Star : Grouping : Cluster : Globular
• X - Star Clusters
Distance:17000 light years

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