Very bright fireball on 2023 December 19

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  • Опубліковано 17 січ 2025

КОМЕНТАРІ • 12

  • @nato996
    @nato996 Рік тому

    is it possible that i saw the same thing in canada the same day?

    • @SloveniaSkies
      @SloveniaSkies  Рік тому

      Not the same event - this one could be seen within approximately 500 km from where it appeared.
      However, it is possible that you saw another fireball from your place.
      Note that you can report your sighting here: fireballs.imo.net

  • @baksban74
    @baksban74 Рік тому

    Is the top part of the "fireball" a lens glare?

    • @SloveniaSkies
      @SloveniaSkies  Рік тому +1

      A parallel streak above the brightest part of the fireball is a reflection due to the camera dome.

  • @goiterlanternbase
    @goiterlanternbase Рік тому

    Can you pull spectroscopic information from
    a snapshot?

    • @SloveniaSkies
      @SloveniaSkies  Рік тому

      Not much. Certainly not enough to conclude about the elemental composition.

  • @Reeegon
    @Reeegon Рік тому

    how did you make the intro picture? Its kinda a strobe photography, did you record that with the cam or did u edit it after?

    • @SloveniaSkies
      @SloveniaSkies  Рік тому +1

      It is a stack of all video frames that contain the fireball from the first camera.

    • @Reeegon
      @Reeegon Рік тому

      @@SloveniaSkies yea how did you do that? what is it called? I need a tutorial for that for premiere pro

    • @SloveniaSkies
      @SloveniaSkies  Рік тому +1

      @@Reeegon I can't help you about premiere pro.
      Here is what I did.
      I first exported individual frames from the video using FFmpeg:
      ffmpeg -i video.mp4 -ss 00:00:39 -to 00:00:47 -vsync 0 -f image2 cam2-%03d.png
      I then stacked the images with the ImageMagick command 'convert'. Like this:
      convert \
      cam2-001.png \
      -background None -compose Lighten \
      cam2-002.png -layers Flatten \
      cam2-003.png -layers Flatten \
      cam2-004.png -layers Flatten \
      ...
      cam2-200.png -layers Flatten \
      stacked.png

    • @Reeegon
      @Reeegon Рік тому

      @@SloveniaSkies ok thanks, is there a special name on how that process is called? So i can look for a tutorial for my program

    • @SloveniaSkies
      @SloveniaSkies  Рік тому

      @@Reeegon you can look for video frame stacking.