x Cancri -- Carbon Star in Cancer
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Carbon Star in the Crab
Less than three-degrees Southeast of the Beehive Cluster (M44) is the dark-red carbon star
x Cancri.  The red colored star stands out from the other white stars around it.  A fine eyepiece
view.

Carbon Stars are unique in that their atmospheres contain more carbon than oxygen – not so
in other stars. The carbon combines with the oxygen, forming carbon monoxide, which
consumes all the available oxygen in the star’s upper atmosphere.  The leftover carbon atoms
bond with other elements causing the star to shine ruby-red in color. No stars are darker-red
than Carbon Stars.