(Melotte 25, Collinder 50)
(nearest open cluster)
The Hyades Cluster is the nearest Open Cluster,
which is about 153 light-years distant, and is much
studied, and the fact that its distance has been measured
in three independent ways, making it a useful step
in the Cosmic Distance Ladder ladder.
It has been estimated to be 625 million years old
but more recently has been thought to be older.
It has Main Sequence Stars up to A-Type Stars remaining.
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