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Ursa Astronomical Association

A fireball at night, as bright as a cresent moon - 7.2.2012 at 23.14 Espoo Observation number 1907

Visibility IV / V

Panu Lahtinen, Ursa (Etelä-Suomi)

A fireball detected by a celestial camera, which apparently also became a lot of visual sightings. Just to the right of the image is Orion's Betelgeuze (az 218 °, alt 32 °), below Sirius (az 199 °, alt 11.5 °), at the top center Procyon (az 187 °, alt 35 °).

By far the brightest of the fireballs recorded by my own camera so far. Too bad the streak runs out of scope.

Based on the breaks and shooting speed shown in the image, I estimate the visibility in the image area to be about 1.8 to 1.9 s.

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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?
    • En osaa sanoa
  • 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
  • In which altitude the bolide disappeared from your sight?
    • Low near the horizon
  • Brightness of the fireball
    • A fireball at night, as bright as a crescent moon
Technical information

Watec WAT-902H3 Ultimate, 2.8-12 mm f / 1.2. Maximum 60-second stack from 23.14.22 Finnish time.

Comments: 2 pcs
Panu Lahtinen - 8.2.2012 at 10.17 Report this

Lisäsin arvion tulipallon kestosta, näkyi kuvan alueella noin 1,8 - 1,9 s.

Martin Renlund - 8.2.2012 at 17.45 Report this


Tulipallo näkyi hyvin myös Helsingin horistotilla, eteläsuunnassa, idästä länteen. Tosi kirkas, hyvin nopea. Itse näin vain laskevan kaaren ikkunasta, alkaen suoraan eteläsuunnasta ehkä 30 asteen korkeudelta. Valo "sammui" ennenkuin tuli horistontille, mutta mahdollisitaa pilvistä en osaa sanoa. kellonaika sama, n 23.15, mutta en muistanut katsoa tarkkaa aikaa.Mikä lie ollut? Aika kaukana jos havaintoja Mikkelistä asti.

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