Like Coins in a Wishing Well

The individual stars in the constellation resemble colorful, shining coins in a wishing well. There are some 300 of them in total, and the constellation is 300 million years old.

The cluster has stars that are both blue and orange in appearance. The blue ones have moderate masses, and the orange and red ones have already burned off their hydrogen and are subsequently much heavier. There are even some red giants which glow with an orangey hue.


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