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Ursa Astronomical Association

A fireball at night, as bright as a cresent moon - 31.10.2016 at 18.24 Helsinki, Pukinmäki Observation number 58123

Visibility IV / V

Esko Lyytinen, Ursa (Helsinki)

There already seem to be several visual observations of this.

I didn’t see the fireball, but I got to the fireball camera. The exact time was 18.23.30 and the duration was 1.4 s.

The planes have made their own distracting footprints, but now did not directly distract this.

I also attach a BTrail map image showing the route in the starry sky and the "rear extension" of the route with a color-coded rough speed estimate, assuming that the radiant is at that point.

There may be a 525 meteor (?) On the IAU working list. The working list is therefore a list whose flocks are not considered secured. I estimate it was absolutely (if it were at a distance of 100 km) around mag-10 at its brightest flash. that is, about the order of the crescent.

EDIT: And here's a link to IAU information about the flock.

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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?
    • 1 second
  • How the flight of the fireball ended?
    • The fireball faded away
  • In which direction the fireball disappeared out of sight?
    • East
  • In which altitude the bolide disappeared from your sight?
    • About 1/3 from the horizon towards the zenith
  • Brightness of the fireball
    • A fireball at night, as bright as a crescent moon
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