96
Star actually have colors
(lemmy.ml)
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550 Lj, but its only expected in 1,5mio Years
[15] R Neuhäuser, G Torres, M Mugrauer, D L Neuhäuser, J Chapman, D Luge, M Cosci: Colour evolution of Betelgeuse and Antares over two millennia, derived from historical records, as a new constraint on mass and age. In: Monthly Notices of the Royal Astronomical Society. Band 516, Nr. 1, 5. September 2022, ISSN 0035-8711, S. 693–719, doi:10.1093/mnras/stac1969
1.5 million?
100,000 years is the much more commonly reported number.
Still though, should interpret my "probably" as more of a "maybe", haha