The high end of the v spectrum has been dimming significantly more than the low end. The lower end of the spectrum has been for the most part stable. The same thing with ir, and red vs blue and uv.
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How do you know that? Where's the data?
- Još 6 drugih odgovora
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I'm so obsessed with Betelgeuse at the moment.
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I think that it's quite obvious that I am too
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Il est temps d’aller au lit
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Je me couche quand je veux
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It is crazy to think that
#Betelgeuse may have supernovaed 600 years ago and we would just be seeing it now.Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi
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what the possible explainations?
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Imagine a tungsten light bulb. When the power goes off then the radiation falls away but the high frequencies (blues) drop away faster than the lower (reds and infrared) frequencies. Perhaps it is similar when a red giant's power supply runs out?
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Čini se da učitavanje traje već neko vrijeme.
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Amateur astronomer, astrophysicist, cosmologist
Future professional astrophysicist
French 

It goes brighter, and then it dims again, and it dims even more (1.666
)! And I trust these data, they come from PTOB (