November (usually visible from northern latitudes)
Notes
The origin of the designation 'Chi Persei' for this object is somewhat obscure, but it does not seem to have been originally recognised as a star cluster (hence a Bayer designation that would typically belong to a star rather than cluster). To complicate matters further, the stellar designation 'Chi Persei' is also applied to a star some 30' northward of the cluster, but not in fact related to it.
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