Announcements

The April 2013 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 — How can you support your organization? (M. Gyssens)
• New goals for the IMO Support Fund (M. Gyssens, P. Roggemans, J. Rendtel)
• Letter — Meteor stream of the large Chelyabinsk fireball (A. Terentjeva, E. Bakanas)
• August iota-Cetids, a Possible New Meteor Shower in August (Z. Andreic, D. Vida, F. Novoselnik, D. Segon, K. Korlevic, F. Matijevic, D. Jasarevic, A. Perkov, C. Tudor)
• Discovery of the Upsilon Andromedids (D. Holman, P. Jenniskens)
• Croatian Meteor Network Catalogues of Orbits for 2008 and 2009 (K. Korlevic, D. Segon, Z. Andreic, F. Novoselnik, D. Vida, I. Skokic)
• Results of the IMO Video Meteor Network — December 2012 (S. Molau, J. Kac, E. Berko, S. Crivello, E. Stomeo, A. Igaz, G. Barentsen, R. Goncalves)
• Results of the IMO Video Meteor Network — January 2013 (S. Molau, J. Kac, E. Berko, S. Crivello, E. Stomeo, A. Igaz, G. Barentsen, R. Goncalves)
• Entropy and time: A search for Denning's resting place (M. Beech)

Front cover photo: Fireball photographed from Poland. Photo courtesy: Janusz Kowalski.

The February 2013 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:

• Editorial — Large meteoroid impact dangers (J. Kac)
• Correction — Results of the IMO Video Meteor Network — August 2012 (S. Molau, J. Kac, E. Berko, S. Crivello, E. Stomeo, A. Igaz, G. Barentsen)
• Janus - 25 Years of the International Meteor Organization (J. Rendtel)
• International Meteor Conference 2013 August 22-25, Poznan, Poland (P. Zoladek, M. Krasnowski, M. Wisniewski, K. Fietkiewicz, M. Maciejewski, A. Skoczewski)
• Call for Future IMCs (P. Roggemans)
• December sigma-Virginids (Y. Shiba, M. Ueda)
• On Short-Perihelion Meteor Streams (A. Terentjeva, E. Bakanas, S. Barabanov)
• Results for a CAMS double-station video observation Meterik-Gronau (C. Johannink)
• A Preliminary Report on the Chelyabinsk Fireball/Airburst (P. Brown)
• Results of the IMO Video Meteor Network — October 2012 (S. Molau, J. Kac, E. Berko, S. Crivello, E. Stomeo, A. Igaz, G. Barentsen, R. Goncalves)
• Results of the IMO Video Meteor Network — November 2012 (S. Molau, J. Kac, E. Berko, S. Crivello, E. Stomeo, A. Igaz, G. Barentsen, R. Goncalves)

Front cover photo: Fireball photographed from Teide Observatory. Photo courtesy: Alex Tudorica.

The International Meteor Organization (IMO) was established in 1988. Over the past 25 years, the IMO managed to collect an impressive amount of observational data and distributed lots of information via its publications and via the very successful International Meteor Conferences. These efforts contributed to major improvements in many aspects of meteor astronomy in the last quarter of a century. You can also become a part of these remarkable achievements by joining the IMO!

The need for international cooperation to study meteors was understood as soon as the first meteor observations were collected in the early 19th century. Indeed, the history of meteor astronomy is marked by numerous attempts to establish such international cooperation, but, unfortunately, most of these failed in the planning stage, while others barely survived for a few years. In the 1980s, however, the time seemed ripe for a new attempt, as an informal international network had emerged rather organically the decade before. Nevertheless, the founders of the IMO were very conscious of the reasons why previous attempts had failed, and wanted to avoid the same pitfalls at all cost. Therefore, they defined the IMO as an association with a minimalistic organizational structure consisting of individual persons rather than national, regional, or local societies. The IMO never had national representatives and has always worked directly with its members. This mode of operation proved to be a success formula, resulting in a genuinely international organization of which you can also be part!

We invite you to join the IMO: read more about IMO membership, fill out the registration form, and pay the required dues, which are kept low to make membership affordable to all. In 2013, you will receive six issues of "WGN", the bi-monthly Journal of the IMO. You are also invited to participate at the International Meteor Conference, 22-25 August, 2013, in Poznan, Poland.

If you are already an IMO member and have not yet renewed for 2013, you are hereby invited to do so. Do not fill out a registration form for a renewal – your renewal information will be added to your existing record. By replying to the confirmation of your renewal, you can inform us of any changes.

The October 2012 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:

• Editorial (J. Kac)
• From the Treasurer - IMO Membership/WGN Subscription Renewal for 2013 (M. Gyssens)
• In Memoriam: Wayne T. Hally (R. Lunsford)
• First announcement of the International Meteor Conference 2013 (P. Zoladek)
• Details of the Proceedings of the International Meteor Conference, Sibiu, Romania, 15-18 September 2011 (M. Gyssens, P. Roggemans)
• International Meteor Conference 2012 report (K. O. Cubuk)
• A simple model of spatial structure of meteoroid streams (M. Koseki)
• Confirmation of the Northern Delta Aquariids (NDA, IAU #26) and the Northern June Aquilids (NZC, IAU #164) (D. Holman, P. Jenniskens)
• A rare opportunity: Observing the 2011 Quadrantid maximum from Austria (T. Weiland)
• Results of the IMO Video Meteor Network — June 2012 (S. Molau, J. Kac, E. Berko, S. Crivello, E. Stomeo, A. Igaz, G. Barentsen)
• Results of the IMO Video Meteor Network — July 2012 (S. Molau, J. Kac, E. Berko, S. Crivello, E. Stomeo, A. Igaz, G. Barentsen)

Front cover photo: Perseid fireball photographed from Croatia. Photo courtesy: Zeljko Andreic.

The August 2012 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:

• Editorial (J. Kac)
• Call for photographs (J. Kac)
• Sir Bernard Lovell (1913—2012) (M. Argo)
• Video obervations of Draconids 2011 from Italy (J. Toth, R. Piffl, J. Koukal, P. Zoladek, M. Wisniewski, S. Gajdos, F. Zanotti, D. Valeri, P. De Maria, M. Popek, S. Gorkova, J. Vilagi, L. Kornos, D. Kalmancok, P. Zigo)
• Draconids expedition to the Adriatic (K. Sarneczky, A. Igaz)
• The Dragon spitting fire all over the starry sky in Portugal (M. Vandeputte)
• SPA Meteor Section Results: Radio Draconids 2011 (A. McBeath)
• Three components of 'Taurids' (M. Koseki)
• Results of the IMO Video Meteor Network — April 2012 (S. Molau, J. Kac, E. Berko, S. Crivello, E. Stomeo, A. Igaz, G. Barentsen)
• Results of the IMO Video Meteor Network — May 2012 (S. Molau, J. Kac, E. Berko, S. Crivello, E. Stomeo, A. Igaz, G. Barentsen)

Front cover photo: Fireball photographed from the National Astronomical Observatory NAO Rozhen, Bulgaria. Photo courtesy: Pencho Markishky.

The June 2012 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:

• Editorial (J. Kac)
• Letter - Leonids 2011 (A. McBeath)
• From the Treasurer-How can you support your organization? (M. Gyssens)
• The Capricornids observed from Namibia (K. Miskotte, C. Johannink)
• SPA Meteor Section Results: Unusual Long-Lived Fireball, 2012 March 3, 21h41m-21h42m UT (A. McBeath)
• Croatian Meteor Network Catalogue of Orbits for 2007 (D. Segon, Z. Andreic, K. Korlevic, F. Novoselnik, D. Vida)
• Daytime Arietids and Marsden Sunskirters (ARI, IAU #171) (P. Jenniskens, H. Duckworth, B. Grigsby)
• Results of the IMO Video Meteor Network — February 2012 (S. Molau, J. Kac, E. Berko, S. Crivello, E. Stomeo, A. Igaz, G. Barentsen)
• Results of the IMO Video Meteor Network — March 2012 (S. Molau, J. Kac, E. Berko, S. Crivello, E. Stomeo, A. Igaz, G. Barentsen)

Front cover photo: A pair of magnitude -3 Capricornids, shot from Hakos Guestfarm, Namibia. See page 87 for observing report. Photo courtesy: Carl Johannink.

Instructions for writing an article for WGN may be found in "Authors, Writing for WGN" [PDF].