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Ursa Astronomical Association

A fireball at night, as bright as a crescent moon - 28.3.2023 at 22.54 Helsinki Observation number 113857

Visibility III / V

Mikko Huhdanmäki

While looking at the sky in a parking lot in Helsinki's Roihuvuori, I noticed a falling object approaching from the southern sky on its way to the northwest. Looking more closely, two brighter objects seemed to pass through the sky, accompanied by clusters of a few smaller pieces, disappearing behind the trees and tall apartment building in the northwest direction. Either it was a very long-lasting bolide that broke into pieces, an asteroid that hit the atmosphere, or falling space debris. However, the object was slower than the long-lasting shooting stars I had observed before. In addition, the object's journey across the sky could refer specifically to an asteroid or space debris. I've seen a few similar phenomena on YouTube videos, some labeled as falling space debris and some as asteroids hitting the atmosphere. I also got a picture taken of the object, which is what it is due to light pollution and the image quality of the phone camera. It was also unfortunate that I didn't get a video of the object in a hurry.



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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?
    • 7 seconds
  • How the flight of the fireball ended?
    • The fireball disappeared behind an obstacle (trees, buildings or clouds)
  • Brightness of the fireball
    • A fireball at night, as bright as a crescent moon
  • 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
Technical information

A picture taken with a OnePlus Nord phone, where the falling space debris or disintegrated asteroid that I observed can be seen as two faintly greenish streaks on the right side of the picture.

Comments: 3 pcs
Markku Siljama - 29.3.2023 at 11.48 Report this

Kuva on hyvä,siitä voi päätellä kaikenlaista.Löytyisköhän keneltäkään toista kuvaa?

Saattaisi olla avaruusromua nopeudesta päätellen.

Mikko Huhdanmäki - 29.3.2023 at 18.59 Report this

Tästä kyseisestä ilmiöstä tosiaan toivoisi ihmisten ja seurojen taivaskameroista ja muista havaintolaitteista saatavia tietoja. Ottamassani valokuvassa kohde näkyy kahtena haaleana, hiukan vihertävänä vaakasuuntaisena viiruna kuvan oikeassa laidassa.

Karri Moilanen - 29.3.2023 at 22.06 Report this

Satuin eilen juuri tulemaan kaupasta Vantaan Martinlaaksossa, kun näin tuon samaisen juovan taivaalla. Punaisen sävyinen ja tosiaan kaksi kirkkaampaa kohdetta samassa linjassa. Ehti mennä kerrostalon taakse ennenkuin sain puhelinta kaivettua, joten jäi kuva saamatta. Liikkui kuitenkin tähdenlentoa hitaammin enkä itse ole aiemmin vastaavaa nähnyt.

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