Beehaw
  • Communities
  • Create Post
  • search
    Search
  • Login
  • Sign Up
OmnipotentEntity ( OmnipotentEntity@beehaw.org )  to Science · 3 years ago

[Arxiv Preprint] Betelgeuse to go supernova in in decades (not centuries)

arxiv.org

external-link
message-square
43
link
fedilink
108
external-link

[Arxiv Preprint] Betelgeuse to go supernova in in decades (not centuries)

arxiv.org

OmnipotentEntity ( OmnipotentEntity@beehaw.org )  to Science · 3 years ago
message-square
43
link
fedilink
  • EGirlEnthusiast ( EGirlEnthusiast@lemmy.fmhy.ml ) 
    link
    fedilink
    arrow-up
    3
    ·
    3 years ago

    is it from our own point of view or its point of view? other guy said the opposite lol. idk what to believe

    • 0xtero ( 0xtero@kbin.social ) 
      link
      fedilink
      arrow-up
      15
      ·
      3 years ago

      It’s always from our PoV.
      We have no idea and no way of knowing what’s actually happening 600 ly. away, right now.
      All our measurements are based on the light and radiation we can observe from here. We have no sensors close to it.
      So if the paper is calculating supernova in couple of decades, it means the star actually went supernova 600+ years ago.

      • OOFshoot ( OofShoot@beehaw.org ) 
        link
        fedilink
        arrow-up
        3
        ·
        3 years ago

        Even if we did have a satellite in orbit around Beetlejuice, its data would take just as long to reach us as the light from the star itself.

        This relatively business is annoying. I suggest we just get rid of the whole thing and go back to the ether.

      • EGirlEnthusiast ( EGirlEnthusiast@lemmy.fmhy.ml ) 
        link
        fedilink
        arrow-up
        2
        ·
        3 years ago

        Ok! Thats what i assumed but the other guy said something else. I should have been able to guess based on the fact that nothing is faster than light, but oh well.

    • Kichae ( Kichae@kbin.social ) 
      link
      fedilink
      arrow-up
      6
      ·
      3 years ago

      Astronomy is done from the observer’s point of view.

    • focus ( focus@lemmy.film ) 
      link
      fedilink
      arrow-up
      2
      ·
      3 years ago

      I might be absolutely wrong though, I don’t really know anything… I just checked how far away it is… but if it has gone supernova already, then we might have a chance to see it? That would be amazing.

      • CeruleanRuin ( CeruleanRuin@lemmy.one ) 
        link
        fedilink
        arrow-up
        3
        ·
        3 years ago

        There is no way for us to have any information whatsoever about an object until the light (ie, information) has reached us. For all intents and purposes, from our local reference frame, it hasn’t happened until we observe.it.

        • focus ( focus@lemmy.film ) 
          link
          fedilink
          arrow-up
          3
          ·
          3 years ago

          well TIL

Science

science

Subscribe from Remote Instance

Create a post
You are not logged in. However you can subscribe from another Fediverse account, for example Lemmy or Mastodon. To do this, paste the following into the search field of your instance: !science@beehaw.org

Studies, research findings, and interesting tidbits from the ever-expanding scientific world.

Subcommunities on Beehaw:

  • Space

Be sure to also check out these other Fediverse science communities:

  • https://lemmy.ml/c/science
  • https://mander.xyz/c/science

This community’s icon was made by Aaron Schneider, under the CC-BY-NC-SA 4.0 license.

Visibility: Public
globe

This community can be federated to other instances and be posted/commented in by their users.

  • 20 users / day
  • 52 users / week
  • 339 users / month
  • 1.14K users / 6 months
  • 3.27K local subscribers
  • 16.3K subscribers
  • 1.38K Posts
  • 6.11K Comments
  • Modlog
  • mods:
  • Chris Remington ( remington@beehaw.org ) 
  • alyaza [they/she] ( alyaza@beehaw.org ) 
  • Gaywallet (they/it) ( Gaywallet@beehaw.org ) 
  • BE: 0.19.15
  • Modlog
  • Legal
  • Instances
  • Docs
  • Code