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

Ursa Astronomical Association

A fireball in a twilight sky - 18.8.2019 at 21.00 Heinävesi, Petruma Observation number 84984

Visibility IV / V


I first thought it was an emergency rocket because I was by the lake. However, the color was not red but blue-green. It was very clear.



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Additional information
  • Accuracy of the given observation time?
    • 15 min difference possible
  • How long time did you see the fireball fly in the sky?
    • 5 seconds
  • How the flight of the fireball ended?
    • The fireball disappeared suddenly
  • In which direction the fireball disappeared out of sight?
    • Southwest
  • In which altitude the bolide disappeared from your sight?
    • About 1/3 from the horizon towards the zenith
  • Brightness of the fireball
    • A fireball in a twilight sky
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