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Star actually have colors (lemmy.ml)

submitted 1 year ago by SnotBubble@lemmy.ml to c/asklemmy@lemmy.ml

3 comments fedilink hide all child comments

While camping, I noticed that if you look long enough at almost any star, you start seeing some tiny, subtle colors in that star. Even crazier, they sometimes flicker between more colors. In my case orange, blue and something like cyan.

Besides constellations, what else could you observe regarding starts, with the naked eye?

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[–] shinigamiookamiryuu@lemm.ee 0 points 1 year ago (2 children)

Betelgeuse will be going supernova in the next few decades and I've been looking at the light fluctuations.

[–] SMT42@lemmy.world 0 points 1 year ago (1 children)

In reality, it's probably already happened! And the light just hasn't reached us yet
Pretty insane to think about that

[–] Pantherina@feddit.de 0 points 1 year ago* (last edited 1 year ago)

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