Betelgeuse is fainting.

Probably nothing serious but who knows?

Discuss celestial objects and phenomena outside the Earth's atmosphere, Earth-launched satellites and exploratory missions, etc....

Moderators: Calilasseia, ADParker

Re: Betelgeuse is fainting.

#41  Postby newolder » Jan 01, 2020 10:16 am

aufbahrung wrote:I know there's the inverse square law and radiation falls off quickly. The stars surrounding a supernova ain't gonna be that effected by the intervening vacuum. I'm not talking end of the world, only frying the electronics of crap TV station satellites etc. Think it might be interesting to review what I said after the supernova appears, if that is possible. You can then continue to scoff or stand back in stunned silence that I got something right.

You still haven't defined what you meant by "the previous supernova". Care to try?

After which "supernova appears" are you writing about now? Betelgeuse or something closer but still more than 50 light-years away?
I am, somehow, less interested in the weight and convolutions of Einstein’s brain than in the near certainty that people of equal talent have lived and died in cotton fields and sweatshops. - Stephen J. Gould
User avatar
newolder
THREAD STARTER
 
Name: Albert Ross
Posts: 7311
Age: 1
Male

Country: Feudal Estate number 9
Print view this post

Ads by Google


Re: Betelgeuse is fainting.

#42  Postby chango369 » Jan 05, 2020 2:11 am

It's almost disorienting now to look up and see that Aldebaran is now the brighter of the two red stars in that part of the sky.
“Government is the Entertainment division of the military-industrial complex.”

Frank Zappa
User avatar
chango369
 
Name: Chris
Posts: 1800
Age: 61
Male

Country: думфукистан
Cuba (cu)
Print view this post

Re: Betelgeuse is fainting.

#43  Postby Spinozasgalt » Jan 05, 2020 2:26 am

I don't have anything important to add. I just feel the need to correct the thread title. It's spelled, "Beetlejuice."
When the straight and narrow gets a little too straight, roll up the joint.
Or don't. Just follow your arrow wherever it points.

Kacey Musgraves
User avatar
Spinozasgalt
RS Donator
 
Name: Jennifer
Posts: 18769
Age: 34
Male

Country: Australia
Australia (au)
Print view this post

Re: Betelgeuse is fainting.

#44  Postby felltoearth » Jan 05, 2020 3:07 am

Spinozasgalt wrote:I don't have anything important to add. I just feel the need to correct the thread title. It's spelled, "Beetlejuice."

Now say it three rimes.
"Walla Walla Bonga!" — Witticism
User avatar
felltoearth
 
Posts: 14015
Age: 53

Canada (ca)
Print view this post

Re: Betelgeuse is fainting.

#45  Postby Spinozasgalt » Jan 05, 2020 4:17 am

I haven't watched the movie so I don't know what happens next. I just wanted to be a part of things.
When the straight and narrow gets a little too straight, roll up the joint.
Or don't. Just follow your arrow wherever it points.

Kacey Musgraves
User avatar
Spinozasgalt
RS Donator
 
Name: Jennifer
Posts: 18769
Age: 34
Male

Country: Australia
Australia (au)
Print view this post

Re: Betelgeuse is fainting.

#46  Postby newolder » Jan 05, 2020 9:19 am

Spinozasgalt wrote:I don't have anything important to add. I just feel the need to correct the thread title. It's spelled, "Beetlejuice."


What are you trying to spell?

The topic title refers to the name given to a member of the constellation Orion that derives from the Arabic for armpit, or hand, of Orion. Otherwise, this disambiguation page may apply.
I am, somehow, less interested in the weight and convolutions of Einstein’s brain than in the near certainty that people of equal talent have lived and died in cotton fields and sweatshops. - Stephen J. Gould
User avatar
newolder
THREAD STARTER
 
Name: Albert Ross
Posts: 7311
Age: 1
Male

Country: Feudal Estate number 9
Print view this post

Re: Betelgeuse is fainting.

#47  Postby Spinozasgalt » Jan 05, 2020 10:55 pm

I DON'T KNOW. I will leave quietly, just stop throwing eggs at me. Please.
When the straight and narrow gets a little too straight, roll up the joint.
Or don't. Just follow your arrow wherever it points.

Kacey Musgraves
User avatar
Spinozasgalt
RS Donator
 
Name: Jennifer
Posts: 18769
Age: 34
Male

Country: Australia
Australia (au)
Print view this post

Ads by Google


Re: Betelgeuse is fainting.

#48  Postby Fallible » Jan 06, 2020 10:50 pm

Poor Jenny...it’s like the time I deliberately used the word “racialist” in a conversation with my brother-in-law, and he thought he had finally caught the naughty atheist in an error. And do you know, I never even defended myself. Props, Jen.
She battled through in every kind of tribulation,
She revelled in adventure and imagination.
She never listened to no hater, liar,
Breaking boundaries and chasing fire.
Oh, my my! Oh my, she flies!
User avatar
Fallible
RS Donator
 
Name: Alice Pooper
Posts: 51607
Age: 48
Female

Country: Engerland na na
Canada (ca)
Print view this post

Re: Betelgeuse is fainting.

#49  Postby Spinozasgalt » Jan 06, 2020 11:48 pm

Image
When the straight and narrow gets a little too straight, roll up the joint.
Or don't. Just follow your arrow wherever it points.

Kacey Musgraves
User avatar
Spinozasgalt
RS Donator
 
Name: Jennifer
Posts: 18769
Age: 34
Male

Country: Australia
Australia (au)
Print view this post

Re: Betelgeuse is fainting.

#50  Postby newolder » Jan 07, 2020 8:41 am

via Sean Carroll
12 tips for physicists who want to talk to biologists, and 13 tips for biologists who want to talk to physicists. (It takes more tips to talk to physicists, and #13 is the best.)
https://www.nature.com/articles/d41586-019-03961-y
https://www.nature.com/articles/d41586-019-03960-z


https://pbs.twimg.com/media/ENnfz0bU0AA ... name=small

Image won't load here but #13 is the best.

Edit for attribution.
I am, somehow, less interested in the weight and convolutions of Einstein’s brain than in the near certainty that people of equal talent have lived and died in cotton fields and sweatshops. - Stephen J. Gould
User avatar
newolder
THREAD STARTER
 
Name: Albert Ross
Posts: 7311
Age: 1
Male

Country: Feudal Estate number 9
Print view this post

Re: Betelgeuse is fainting.

#51  Postby newolder » Jan 10, 2020 10:03 pm

... and so it continues:
Image
story continues at today's spaceweather.com
...
The horizontal axis is Heliospheric Julian Date (HJD). For reference, Jan. 6, 2020, the date of the most recent measurement, has an HJD of 2458855.

The fainting is easy to see with the naked eye. Not long ago, Betelgeuse was the 10th brightest star in the sky. Now it is the 21st. Observers of Orion rising in the east after sunset can’t help but notice that the Hunter’s shoulder is dimmer than it used to be.
...
I am, somehow, less interested in the weight and convolutions of Einstein’s brain than in the near certainty that people of equal talent have lived and died in cotton fields and sweatshops. - Stephen J. Gould
User avatar
newolder
THREAD STARTER
 
Name: Albert Ross
Posts: 7311
Age: 1
Male

Country: Feudal Estate number 9
Print view this post

Re: Betelgeuse is fainting.

#52  Postby aufbahrung » Jan 10, 2020 10:52 pm

I recall a astronomy geek in my dungeans and dragons group back in the 80s saying it'd gone dim and was getting ready to blow....been here before. Close but no cigar...
ship struck the rocks yesterday, and the worst is yet to be....
User avatar
aufbahrung
 
Name: Your Real Name
Posts: 1412

Country: United Kingdom
United Kingdom (uk)
Print view this post

Re: Betelgeuse is fainting.

#53  Postby newolder » Jan 10, 2020 11:02 pm

It's now the dimmest since well before the 80s.
Image

Graph from SkyandTelescope article, "What’s Up With Betelgeuse?"
I am, somehow, less interested in the weight and convolutions of Einstein’s brain than in the near certainty that people of equal talent have lived and died in cotton fields and sweatshops. - Stephen J. Gould
User avatar
newolder
THREAD STARTER
 
Name: Albert Ross
Posts: 7311
Age: 1
Male

Country: Feudal Estate number 9
Print view this post

Re: Betelgeuse is fainting.

#54  Postby chango369 » Jan 11, 2020 5:08 pm

newolder wrote:... and so it continues:
Image
story continues at today's spaceweather.com
...
The horizontal axis is Heliospheric Julian Date (HJD). For reference, Jan. 6, 2020, the date of the most recent measurement, has an HJD of 2458855.

The fainting is easy to see with the naked eye. Not long ago, Betelgeuse was the 10th brightest star in the sky. Now it is the 21st. Observers of Orion rising in the east after sunset can’t help but notice that the Hunter’s shoulder is dimmer than it used to be.
...


GAH! I should be excited about being able to witness stellar evolution with the unaided eye. I should be excited about the chance that it'll go supernova.

Instead, I find myself stressed out about going out after sunset and seeing Orion rise with Betelgeuse looking almost as dim as Bellatrix. It's undeniably irrational, and yet I'm irritated. It's akin to seeing a favorite tree losing a branch. I might as well admit, that with everything else going on, I've found myself having to suppress irrational musings about its being a harbinger of some kind.
“Government is the Entertainment division of the military-industrial complex.”

Frank Zappa
User avatar
chango369
 
Name: Chris
Posts: 1800
Age: 61
Male

Country: думфукистан
Cuba (cu)
Print view this post

Re: Betelgeuse is fainting.

#55  Postby newolder » Jan 11, 2020 5:34 pm

Perhaps this page listing the currently active and other recent supernovae, will help restore some calm? :dunno:

With the huge number of galaxies in the cosmos, stars go pop all the time somewhere or other. Harbingers of data for modellers is the worst that happens, unless one's planet is within a few 10s of light years, or so. :thumbup:
I am, somehow, less interested in the weight and convolutions of Einstein’s brain than in the near certainty that people of equal talent have lived and died in cotton fields and sweatshops. - Stephen J. Gould
User avatar
newolder
THREAD STARTER
 
Name: Albert Ross
Posts: 7311
Age: 1
Male

Country: Feudal Estate number 9
Print view this post

Ads by Google


Re: Betelgeuse is fainting.

#56  Postby Macdoc » Jan 11, 2020 10:34 pm

What is the risk range for a middling size supernova?

Just curious and too lazy to look it up. :whistle:
Travel photos > https://500px.com/macdoc/galleries
EO Wilson in On Human Nature wrote:
We are not compelled to believe in biological uniformity in order to affirm human freedom and dignity.
User avatar
Macdoc
 
Posts: 17156
Age: 73
Male

Country: Canada/Australia
Australia (au)
Print view this post

Re: Betelgeuse is fainting.

#57  Postby Ironclad » Jan 12, 2020 11:42 am

For Van Youngman - see you amongst the stardust, old buddy

"If there was no such thing as science, you'd be right " - Sean Lock

"God ....an inventive destroyer" - Broks
User avatar
Ironclad
RS Donator
 
Name: Nudge-Nudge
Posts: 23886
Age: 51
Male

Country: Wink-Wink
Indonesia (id)
Print view this post

Re: Betelgeuse is fainting.

#58  Postby newolder » Jan 23, 2020 12:49 pm

The latest Astronomer's telegram on The Continued Unprecedented Fading of Betelgeuse notes that the current best guess is the dimming should reverse by the beginning of February...

...
If these recent light changes are due to an extra-large amplitude light pulse on the ~420-day period, then the next mid-light minimum is expected during late January/early February, 2020. If Betelgeuse continues to dim after that time then other possibilities will have to be considered. The unusual behavior of Betelgeuse should be closely watched.
I am, somehow, less interested in the weight and convolutions of Einstein’s brain than in the near certainty that people of equal talent have lived and died in cotton fields and sweatshops. - Stephen J. Gould
User avatar
newolder
THREAD STARTER
 
Name: Albert Ross
Posts: 7311
Age: 1
Male

Country: Feudal Estate number 9
Print view this post

Re: Betelgeuse is fainting.

#59  Postby aufbahrung » Jan 23, 2020 1:09 pm

Star might have exhausted its lighter gases, still needs time to build up towards producing iron where the supernova occurs. That might be a century or more. I'm not expecting anything to happen soon. Keep a eye on it, though. Could be next week. I've been wrong before.
ship struck the rocks yesterday, and the worst is yet to be....
User avatar
aufbahrung
 
Name: Your Real Name
Posts: 1412

Country: United Kingdom
United Kingdom (uk)
Print view this post

Re: Betelgeuse is fainting.

#60  Postby BlackBart » Jan 23, 2020 1:12 pm

aufbahrung wrote: I've been wrong before.

Shut the front door!
You don't crucify people! Not on Good Friday! - Harold Shand
User avatar
BlackBart
 
Name: rotten bart
Posts: 12237
Age: 58
Male

United Kingdom (uk)
Print view this post

PreviousNext

Return to Astronomy & Space Science

Who is online

Users viewing this topic: No registered users and 1 guest