• @OccamsTeapot@lemmy.world
    link
    fedilink
    English
    332 months ago

    At this time of year, at this time of the day, in this part of the country? Localized entirely within your kitchen?!

  • @Eheran@lemmy.world
    link
    fedilink
    English
    102 months ago

    So little text and still wrong. Why not at least read about it in Wikipedia? Or ask GPT?

    • Redjard
      link
      fedilink
      English
      6
      edit-2
      2 months ago

      Could you correct it for us mere mortals without in-depth aurora knowledge?

      • @Eheran@lemmy.world
        link
        fedilink
        English
        62 months ago

        Sure. Red: It is the lower concentration of oxygen but also/mostly the lower overall pressure (lower number of partciles per volume). Only with lower pressure can there be fewer collisions and thus the exited state is not quenched.

        Green: Any interaction of a random atom and the exited oxygen atom, that would otherwise emit red light, quenches the red light emission. Thus the faster green transition can take over.

  • @niktemadur@lemmy.world
    link
    fedilink
    English
    7
    edit-2
    2 months ago

    Of course there had to be a persistent marine layer in my night skies these past few days. It’s probably going to go away the day after the auroras do.