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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 - 28.4.2017 at 21.30 Helsinki Observation number 63652

Visibility IV / V

Esko Lyytinen, Ursa (Helsinki)

There is a fireball camera observation, I did not see it myself.

I already comment in the observation:

http://www.taivaanvahti.fi/observations/show/63594

two or maybe three twilight fireballs seen at almost the same time.

Here the sun was only 2 or 3 degrees below the horizon at the time and was visible quite on the sun side i.e. it was quite bright this one too. Was too fast to drop the meteorite.

The exact time of this was 21.29.46 for its start.

The duration in auto detection was 2.28 s, but was already bright when it came to the image area



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Additional information
  • Accuracy of the given observation time?
    • Maximum of 1 minutes difference possible
  • How long time did you see the fireball fly in the sky?
    • 2 seconds
  • How the flight of the fireball ended?
    • The fireball faded away
  • In which direction the fireball disappeared out of sight?
    • Northwest
  • 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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