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Tagged with betelgeuse variable-star
6
questions
6
votes
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585
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Intuitive connection between the periods of oscillation of Betelgeuse and the elemental concentrations at its core? (Betelgeuse; Saio et al. (2023))
Preamble (yes it's long, but it's part of this question's premise, so need to spell it out)
Dr. Becky's recent video New study claims Betelgeuse supernova IMMINENT (decades not centuries!) | Night Sky ...
- 30.7k
2
votes
0
answers
56
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Is Betelgeuse is continually expelling material on the scale of the 2019/2020 event?
The AUGUST 13, 2020 Phys.org article
Results from Hubble suggest that Betelgeuse's recent dimming was due to material ejected from the star says:
...the star's unexpected and significant dimming ...
- 1,071
10
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1
answer
196
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Color index B-V of the dimming Betelgeuse
Using AAVSO light curve generator I have plotted V and B magnitudes of Betelgeuse in the past 150 days to see trend of B-V color index. If dust would be the cause of the recent drop in the star ...
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22
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1
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Are stars expected to become dimmer before a supernova?
With the recent news about the "fainting" of Betelgeuse and the speculation that this might be a precursor to a supernova, I'm wondering if there is any theoretical/observational basis for this ...
user24157
3
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1
answer
172
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When we say a variable star is "fainting" does it mean something more or different than "dimming" or "fading"?
A comment below the question Does the current “fainting” of Betelgeuse show any spectral trends that differ from it's normal variability? suggests that "dimming" would be a better term, but I have a ...
- 30.7k
7
votes
1
answer
329
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Did the late 2019 "fainting" of Betelgeuse show any spectral trends that differ from it's normal variability?
update: (August 2020) With all the newest news about including what the Dr. Becky video discusses as linked in How do magnetic fields mess with astronomers' observations? I'll bet this question ...
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