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Betelgeuse stays dim. The purple supergiant Betelgeuse in Orion’s shoulder has at all times been barely variable, however for the final month or so it has been in an unusually low dip. As of January 22nd it was nonetheless about visible magnitude +1.5 as a substitute of its extra typical +zero.5, It is clearly fainter than similarly-colored Aldebaran, magnitude +zero.9, with which it is usually in contrast and usually outshines fairly clearly.
The put up This Week’s Sky at a Glance, Jan. 24 – Feb. 1 appeared first on Sky & Telescope.
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