Mysterious dimming of bright star Betelgeuse may be from 'sunspots' and temperature changes

[Admin]

The mysterious strange dimming seen last year in the huge star Betelgeuse may be from giant sunspots and temperature fluctuations.

Mysterious dimming of bright star Betelgeuse may be from 'sunspots' and temperature changes : Read more

 

[Helio]

Although the spectral analysis for TiO and other molecules reportedly favors a large, cooler spot, but wouldn't a spewed gigantic cloud also cool and allow TiO?

Nit... "degrees Kelvin" I think should be "kelvins", oddly enough.