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03/05/2020 – Ephemeris – Apparently Betelgeuse, though dimming wasn’t cooling as expected

5 Mar 2020, 05:01 UTC
03/05/2020 – Ephemeris – Apparently Betelgeuse, though dimming wasn’t cooling as expected
(200 words excerpt, click title or image to see full post)

Ephemeris for Thursday, March 5th. Today the Sun will be up for 11 hours and 24 minutes, setting at 6:36, and it will rise tomorrow at 7:10. The Moon, 3 days past first quarter, will set at 5:31 tomorrow morning.
Betelgeuse, the red star in the constellation Orion’s shoulder has apparently stopped dimming and has begun to brighten. The guesses as to the cause of the dimming are many. One suggested by a photograph taken of the star in December shows the southern half dimmed like it was covered by something. Betelgeuse out gasses lots of material, some of which condenses into dust. Could some of this dust mask the star and make it dimmer? I suspect that we’ll find out before too long. Many astronomers are wishing Betelgeuse would explode in a core collapse or type 2 supernova. At its approximate 700 light year distance we’d be safe, though a bazillion neutrinos would pass harmlessly through each one of us just before the light would get here.
The times given are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
Addendum
An image of the star Betelgeuse taken in infrared shows it’s surrounded by ...

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