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Philip Pugh's Astronomy Blog

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2 Apr 2021, 20:37 UTC
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April 2nd 1945 GMT BetelgueseI do not normally make variable star magnitude estimates at dusk. As Betelguese was getting lower in the sky and would be even lower at nightfall, I got my visuals in early. Aldebaran and Procyon were about the same height above the horizon as Betelguese, so I was able to make a reasonable estimate of magnitude 0.65. Unlike the spectacular fading of 2020, Betelguese was well within its published range but seemed to have faded from 0.45 in the autumn but the fade did not seem steady. I wondered how much of it was real and how much was due to the observing conditions.

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