Contact information

Skywarden,
Ursa Astronomical Association
Kopernikuksentie 1
00130 Helsinki
taivaanvahti(at)ursa.fi

Ursa Astronomical Association

A fireball in a twilight sky - 11.7.2021 at 23.24 Vantaa Observation number 99523

Visibility IV / V


Bright green, but maybe a changing color. It could have been fireworks, but it was quite different and went in the wrong direction. Another person also saw. I saw it when it appeared in the sky, but it disappeared behind the forest, because I think maybe I saw it behind the trees too.



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Additional information
  • Accuracy of the given observation time?
    • 5 min difference possible
  • How long time did you see the fireball fly in the sky?
    • 3 seconds
  • How the flight of the fireball ended?
    • The fireball disappeared behind an obstacle (trees, buildings or clouds)
  • In which direction the fireball disappeared out of sight?
    • Southwest
  • Brightness of the fireball
    • A fireball in a twilight sky
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