Last week’s column highlighted the "diamond in the sky," Sirius. This time around we will look at another beacon of the winter sky, which shines more like a ruby: Betelgeuse.Betelgeuse is one of the luminaries of the constellation Orion, marking the upper left corner of the parallelogram of stars encompassing the famed stellar trio of "Orion’s Belt". You can see Orion in the south on February evenings.The eighth brightest star in the night sky, Betelgeuse [...]
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