Betelgeuse is brightening ..

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brian livesey
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Betelgeuse is brightening ..

Post by brian livesey »

According to South Korean research astronomer, Bum( yes )- Suk Yeom, "The red supergiant star Betelgeuse is not likely to undergo a supernova explosion anytime soon". Yeom has constructed a light curve diagram from data provided by the American Association of Variable Star Observers ( AAVSO ) to show that Betelgeuse is getting brighter.
Betelgeuse's' brightening was, in fact, predicted by Ed Guinan and Richard Wasatonic at Villanova University. Their prediction was based on a Fourier analysis of the star's light curve, but it's still too early to know if the current brightening will continue.
Betelgeuse is a beautiful star in the telescope; it would be a pity to see it transformed into a nebulous splog in the sky.
brian

skyhawk
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Re: Betelgeuse is brightening ..

Post by skyhawk »

I thought it was DIMMING ???
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David Frydman
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Re: Betelgeuse is brightening ..

Post by David Frydman »

Last month it was between visual magnitude 1.3 and 1.7 according to variable star observers.

But the curve may indicate brightening over time.

But we will see.

Maybe to magnitude minus 12.

David

skyhawk
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Re: Betelgeuse is brightening ..

Post by skyhawk »

Celestron 8" Edge HD Evolution, Esprit 120mm triplet, 72mm APO, Sky Tee 2, 6" reflecting scope, William Optics Binoviewer, Quark Daystar Ha Chromosphere on 72mm ED, LVW8mm eyepiece and Celestron 19mm Axiom, matched W.O 10 and 20mm, and a few others, D4s, D810,

For info, I am Autistic, Aspergers, ADHD, therefore if I come over as a little "short" on occasions it is not intended, thank you

skyhawk
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Re: Betelgeuse is brightening ..

Post by skyhawk »

Celestron 8" Edge HD Evolution, Esprit 120mm triplet, 72mm APO, Sky Tee 2, 6" reflecting scope, William Optics Binoviewer, Quark Daystar Ha Chromosphere on 72mm ED, LVW8mm eyepiece and Celestron 19mm Axiom, matched W.O 10 and 20mm, and a few others, D4s, D810,

For info, I am Autistic, Aspergers, ADHD, therefore if I come over as a little "short" on occasions it is not intended, thank you

Brian
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Re: Betelgeuse is brightening ..

Post by Brian »

From
http://www.astronomerstelegram.org/?read=13439

>quote
Adopting a more refined determination of the dominant (probable pulsation) period of P = 430 days, the minimum brightness is expected on 21 (+/-7d) February, 2020.
<unquote

Seems they may well be proven correct

https://www.spaceweather.com/ for 21Feb 2020

>quote
The red supergiant star Betelgeuse appears to have finally stopped its unprecedented dimming. It's been brightening over the last few days
<unquote
Brian
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brian livesey
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Re: Betelgeuse is brightening ..

Post by brian livesey »

There was a suggestion that the dimming of Betelgeuse could be due to a cloud of dust associated with the star.
brian

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