From DeepSkyVideos.

The open cluster Messier 47 contains a white dwarf star which attracted the interest of astronomers, as Mike Merrifield explains.
More links and info in full description ↓↓↓

Professor Merrifield is an astronomer at the University of Nottingham: https://twitter.com/AstroMikeMerri

PAPER… A Massive Magnetic Helium Atmosphere White Dwarf Binary in a Young Star Cluster: https://arxiv.org/abs/1906.04727

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Video by Brady Haran