M5 and Serpentis A&B

Posted by Kevin Morefield
on Sunday, July 12, 2020
Serpentis A has exhausted its core hydrogen and is evolving to become a red giant, though clearly it is still blue at this time. It's color index is .5. Serpentis B separates from A by 11.4" and was a nice surprise for me when I started processing the data! They make an interesting pair.

M5 lies 24,000 light years distant which makes wish we had a globular a close as Serpentis A at 82 light years. What a show that would be!
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