More on open cluster from Fact Monster:

• star cluster - star cluster star cluster, a group of stars near each other in space and resembling each other in ...
• Perseus, in astronomy - Perseus Perseus, in astronomy, northern constellation lying E of Cassiopeia and N of Taurus. It ...
• Hyades, in astronomy - Hyades Hyades , in astronomy, open star cluster in the constellation Taurus, located immediately to ...
• The Constellations - The Constellations Constellations are groupings of stars that form easily recognized and remembered ...
• STARS - Great globes of intensely hot gas called stars pour light and heat into space. A star is born in a vast NEBULA of gas and dust and may shine steadily

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