The International Meteor Organization (IMO) was founded in 1988 and has more than 250 members now. IMO was created in response to an ever growing need for international cooperation of meteor amateur work. The collection of meteor observations by several methods from all around the world ensures the comprehensive study of meteor showers and their relation to comets and interplanetary dust.

You can read about the history, current aims and commissions of IMO. An additional page informs you about how to become a member the International Meteor Organization. Membership includes a subscription to WGN, the journal of the IMO.

Short term meteor activity outlook - Report your observations - Live ZHR graphs - Data archives - Observing handbook - Annual conference

WGN 43:3 out now

WGN 43-3

The June 2015 issue of the IMO Journal is now in print. It will be mailed shortly and subscribers can also immediately access the journal in PDF format. The contents this month:

  • In Memoriam: Bruce Andrew McIntosh (1929 — 2015) (P. Brown)
  • Letter — Zeng Wei Zhou (1988 – 2015) (Q. Zheng)
  • International Meteor Conference 2016 in Egmond, The Netherlands — First announcement (J. Hartman)
  • Draconid 2011 outburst observations from Slovenia (J. Kac)
  • Double station observation of meteors in Nikolaev (N. Kulichenko, O. Shulga, Ye. Kozyryev, Ye. Sybiryakova)
  • Results of the IMO Video Meteor Network — January 2015 (S. Molau, J. Kac, S. Crivello, E. Stomeo, G. Barentsen, R. Goncalves, C. Saraiva, M. Maciewski, M. Maslov)
  • Results of the IMO Video Meteor Network — February 2015 (S. Molau, J. Kac, S. Crivello, E. Stomeo, G. Barentsen, R. Goncalves, C. Saraiva, M. Maciewski, M. Maslov)

Front cover photo: Bright fireball recorded by the Hiroshima University allsky camera on 2015 May 18. Photo courtesy: Koji S. Kawabata, Hiroshima University.


WGN 43:2 out now

WGN 43-2

The April 2015 issue of the IMO Journal is now in print. It will be mailed shortly and subscribers can also immediately access the journal in PDF format. The contents this month:

  • From the Treasurer — Supporting Members 2014 (M. Gyssens)
  • The IMO Support Fund (IMO Council)
  • Enhanced kappa-Cygnid activity 2014 (J. Rendtel, S. Molau)
  • Results of the IMO Video Meteor Network — November 2014 (S. Molau, J. Kac, S. Crivello, E. Stomeo, G. Barentsen, R. Goncalves, C. Saraiva, M. Maciewski, M. Maslov)
  • Results of the IMO Video Meteor Network — December 2014 (S. Molau, J. Kac, S. Crivello, E. Stomeo, G. Barentsen, R. Goncalves, C. Saraiva, M. Maciewski, M. Maslov)

Front cover photo: Bright fireball over the Atacama Large Millimeter/submillimeter Array (ALMA) in the Chilean Andes. Credit: ESO/Christoph Malin.

The Lyrid meteor shower in 2015

The activity graph below is updated every 15 minutes - click for details.

Lyrids 2015

Fireball With Sonic Booms Over Germany and Switzerland

The IMO has received over 45 reports of a bright fireball meteor over Germany and Switzerland that occurred on March 15th, around 19:48 Universal Time. Witnesses from Germany, Switzerland, France and Austria reported the event to the International Meteor Organization. Robin from Tuttlingen reported: "The fireball was so bright that it illuminated the sky and landscape around me to twilight brightness levels."

Seven witness near Zurich reported a rumbling boom sound shortly after the fireball appeared. A witness outside of Zurich described the boom by saying, "About two minutes after the fireball there was a considerably strong sonic boom.

WGN 43:1 out now

WGN 43-1

The February 2015 issue of the IMO Journal is now in print. It will be mailed shortly and subscribers can also immediately access the journal in PDF format. The contents this month:

  • Janus (C. Verbeeck)
  • IMO's new online fireball form (M. Hankey, V. Perlerin)
  • International Meteor Conference 2015, 34th edition, August 27–30, Mistelbach, Austria (T. Weiland)
  • Various meteor scenes III: Recurrent showers and some minor showers (M. Koseki)
  • Results of the IMO Video Meteor Network — September 2014 (S. Molau, J. Kac, S. Crivello, E. Stomeo, G. Barentsen, R. Goncalves, C. Saraiva, M. Maciewski, M. Maslov)
  • Results of the IMO Video Meteor Network — October 2014 (S. Molau, J. Kac, S. Crivello, E. Stomeo, G. Barentsen, R. Goncalves, C. Saraiva, M. Maciewski, M. Maslov)

Front cover photo: Bright meteor on 2013 August 24 at 22h30m UT from Jura mountains, Switzerland. Photo courtesy: Jonas Schenker.


Fireball report form goes live!

If you see a fireball in the night sky, you can now report it to the IMO through our new fireball form! Translated into more than 25 languages, the form guides you through describing what you saw in a way that provides useful information to astronomers studying meteors. The information you provide can be combined with that of other eye-witnesses to give a good estimate of the trajectory of the fireball, and to help determine if a ground fall occurred.

Assuming no specialist astronomical knowledge or observing experience, the form easily takes you through the process of reporting a fireball sighting in detail. The information gathered from the submitted reports is collected into a public database which can be searched for particular events.

A large team of IMO volunteers has been hard at work translating the fireball form into more than 25 languages, and the IMO is now busy publicising it to local astronomical societies and observing groups around the world. Large fireball events often excite local media; if such an event happens in your region you can help by telling people about the form so that they can report what they saw.

If you would like to contribute a new translation in a language not already covered, or spot a mistake in the text of the form in your native language, please get in touch so that we can fix it, or follow the instructions to translators.

The IMO fireball report can be easily customized and branded for amateur societies, observatories, institutions or other astronomical organizations who receive fireball reports and enquiries from the public (see the Turkish Uzaybimer version for example, you may need to clear your browser cache). For more details, and to set up an account for your organization, please contact vperlerin@gmail.com.

If you would like to test the form without submitting a false event to the database, please use the test version of the form.

Happy fireball spotting!