submitted 11 months ago by SnotBubble@lemmy.ml to c/asklemmy@lemmy.ml

50 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?

you are viewing a single comment's thread
view the rest of the comments

[-] shinigamiookamiryuu@lemm.ee 9 points 11 months ago

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

[-] SMT42@lemmy.world 6 points 11 months ago

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

[-] shinigamiookamiryuu@lemm.ee 1 points 11 months ago* (last edited 11 months ago)

Will we get any of the radiation? Does anyone know this?

[-] ryathal@sh.itjust.works 3 points 11 months ago

Probably not, but at most it would be detectable levels. Radiation drops at the square of distance, and there is a lot of distance.

[-] Pantherina@feddit.de 1 points 11 months ago* (last edited 11 months 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

[-] SMT42@lemmy.world 1 points 11 months ago

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

load more comments (2 replies)

this post was submitted on 27 Sep 2023

99 points (95.4% liked)

Asklemmy

43324 readers

1084 users here now

A loosely moderated place to ask open-ended questions

Search asklemmy 🔍

If your post meets the following criteria, it's welcome here!

Open-ended question
Not offensive: at this point, we do not have the bandwidth to moderate overtly political discussions. Assume best intent and be excellent to each other.
Not regarding using or support for Lemmy: context, see the list of support communities and tools for finding communities below
Not ad nauseam inducing: please make sure it is a question that would be new to most members
An actual topic of discussion

Looking for support?

Looking for a community?

Lemmyverse: community search
sub.rehab: maps old subreddits to fediverse options, marks official as such
!lemmy411@lemmy.ca: a community for finding communities

~Icon~ ~by~ ~@Double_A@discuss.tchncs.de~

founded 5 years ago

MODERATORS