UW Canis Majoris
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Författare/Upphovsman: PopePompus, Licens: CC BY-SA 4.0
A light curve for UW Canis Majoris from Hipparcos data, adapted from Antokhina et al., New Astronomy, vol 16, issue 3, pp 177-182, 2011
Författare/Upphovsman: COSMOdixi, Licens: CC BY-SA 4.0
This open cluster was discovered by the Sicilian astronomer Giovanni Battista Hodierna in 1654 to be rediscovered by the British William Herschel in 1783. The Big Dog Tau cluster owes its common name to the star τ (Tau - magnitude : 4,4) which illuminates its center. It is also found under the name "Northern Jewel Box" in reference to NGC 4755 located in the constellation of the Southern Cross.
Författare/Upphovsman: IAU and Sky & Telescope magazine (Roger Sinnott & Rick Fienberg), Licens: CC BY 3.0
IAU Canis Major chart