The 42nd ESOP is now over. We thank everyone who contributed to what was a very successful meeting. The 2024 ESOP is to be held in the city of Stuttgart, Germany.
Our conference code of conduct can be read here.
The 42nd European Symposium on Occultation Projects will take place at Armagh Observatory and Planetarium on 16th – 17th September 2023. To indicate your interest in participating, please send an email with your name, institute and email address to esop42@armagh.ac.uk
Armagh is a town of circa 25,000 in Northern Ireland – one of the four UK nations – located some 20 mi from the border with the Republic of Ireland (RoI). Armagh is considered the ecclesiastical capital of Ireland, was given city status in 1994 and is home to two cathedrals (both named St Patrick’s!). Travel to and from Armagh is served by three major airports, Dublin International (DUB; 90 min by car), Belfast International (BFS; 45 min by car) and Belfast City (BHD; 70 min by car). Many low-cost flights are available to these airports. Regular bus services exist between Armagh and Belfast or Dublin.
A social programme will be available following the meeting.
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Background
Occultations and eclipses – when a body or its shadow appear to move in front of another body – have played a pivotal role in the development of astronomy and continue to do so in the professional era e.g. the 1919 solar eclipse that confirmed Einstein’s theory of relativity. Nowadays, eclipse and occultation phenomena act as catalysts for advances in solar and stellar physics, exoplanet research and the study of rings, planetary atmospheres and small bodies in our solar system.
Due to the time- and location-sensitive nature of occultations, acquisition of research-grade data often relies on a network of highly-motivated amateur astronomers. The need to coordinate this global resource for astronomy led to the establishment of the International Occultation Timing Association (IOTA), a worldwide amateur-professional organisation focusing on occultation & eclipse phenomena within the solar system.
Founded at about the same time, the European Section of IOTA (IOTA-ES) is a non-profit organisation “..open to all people interested in occultation astronomy, either as a technology expert, observer, researcher or just a person who loves this special kind of nature in the solar system.”. At every year since 1981, IOTA-ES has been holding a meeting, the European Symposium on Occultation Projects (ESOP), to foster interaction and collaboration between amateur astronomers and between amateurs & professionals. AOP will be hosting the 42nd ESOP in the City of Armagh, the first to be held in the island of Ireland.
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ESOP 42
Welcome to ESOP 42!
Some preliminary information about the meeting can be found in these presentation sides.
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Registration and deadlines
- If you are attending the meeting in person, please register here.
- Online participants should register here. Online participation is free of charge.
- Please pay here to complete your registration for ESOP 42 (onsite participants only). The promo code to be used for this meeting is CONFAOP23
- Please submit your contribution title and abstract (onsite participants only) here.
Registration deadline: Aug 31st.
Abstract submission (talk/poster): Aug 31st. Hotel Reservation (Armagh City Hotel discounted rate): Expired. See under “Accommodation” tab for more information.Refunds for cancellations will be considered on a case by case basis.
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Scientific Programme
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@import url(kram/oldie.css);ESOP XLII
Location: Armagh Observatory and Planetarium, Armagh BT61 9DB, Northern Ireland, United Kingdom
Planetarium Main building (› map)
<!– All sessions have been recorded and can be watched on YouTube
–>Submitted abstracts are available to view here.
When What Where Friday, September 15
15:00 – 17:00 Registration desk opens Planetarium Main Building 19:30 – 23:00 Welcome reception Spires Bar, Armagh City Hotel Saturday, September 16
08:30 Registration desk opens Planetarium Main Building 09:10 – 09:25 Opening ceremony Session: Observational reports I (Chair: Wolfgang Beisker) Copernicus Hall 09:30 – 09:50 Baba Aissa Djounai: The positive Observation of the Stellar Occultation by the Transneptunian Object 19521 Chaos at the Algiers Observatory (CRAAG), on March 29th, 2023 (pdf of slides) 09:50 – 10:15 Konrad Guhl: Baily’s Bead Observations during the Total Solar Eclipse 2022 April 20 (pdf of slides) 10:15 – 10:30 Marcelo Assafin: Kilometer-precise (UII) Umbriel physical properties from the multichord stellar occultation on 2020 September 21 (V) (pdf of slides) 10:30 – 11:00 Coffee break Session: Observation Reports II (Chair: Michael O’Connell) Copernicus Hall 11:00 – 11:25 Marek Zawilski: A short story of the Irish eclipses and occultations (V) (pdf of slides) 11:25 – 11:50 Tim Haymes: Observation highlights in GB/IE region for 2022/3 (pdf of slides) 11:50 – 12:05 Alex Pratt: A grazing asteroidal occultation by (325) Heidelberga on 2023 January 19 (pdf of slides) 12:05 – 12:30 Richard Miles: Stellar Occultations by Comet Nuclei: The Story of Centaur-comet 29P <!–[PDF]–> 12:30 – 14:00 <!–Group photo + –> Lunch Session: Reporting formats & databases (Chair: William Stewart) Copernicus Hall 14:00 – 14:20 Sven Andersson: SODIS – The portal for reporting occultations of stars by minor planets (pdf of slides) 14:20 – 14:40 Yücel Kiliç: A Statistical Overview and Current State of the Occultation Portal (pdf of slides) 14:40 – 15:00 Tim Haymes: Submitting Light Curves to Dave Herald – The new Occult4 function (pdf of slides) 15:00 – 15:20 Niko Wünsche: Long-term storage of observation data (pdf of slides) 15:20 – 15:45 Mike Kretlow: CORA – Collaborative Occultation Resources and Archive. Status quo and future plans (V) (cancelled) 15:45 – 16:00 Live discussion 16:00 – 16:30 Coffee break 16:30 – 18:00 IOTA/ES general assembly 18:00 Closing of day 1 18:30 – end Social dinner at Charlemont Arms Hotel Sunday, September 17
Session: The December 2023 occultation of Betelgeuse by asteroid (319) Leona (Chair: Oliver Klös) Copernicus Hall 09:00 – 09:15 Konrad Guhl: Planned Observation of the occultation of Betelgeuse by (319) Leona (pdf of slides) 09:15 – 09:35 Miguel Montargès: Photometry and spectroscopy of Betelgeuse (α Ori) during its occultation by 319 Leona on 12/12/2023 (V) (pdf of slides) 09:35 – 09:55 Carles Schnabel: Betelgeuse occultation in Spain (V) (pdf of slides) 09:55 – 10:15 Alfonso Noschese: Betelgeuse event – Astrocampania organization to facilitate the observation of the occultation from Italy (pdf of slides) 10:15 – 10:30 Bernd Gährken: Some observation ideas for the occultation of Betelgeuse (Part1 Part2 Part3) 10:30 – 10:45 Wolfgang Beisker: Fast Spectroscopy with a Slitless Spectrograph – Using a Blazed Grating with Low Resolution (pdf of slides) 10:45 – 11:15 Coffee break Session: Asteroid Modelling from Occultation Data (Chair: Apostolos Christou) Copernicus Hall 11:15 – 11:35 Dominik Černý: Occultations as a tool for creation and validation of asteroid models (pdf of slides) 11:35 – 11:55 Julia Perla: Asteroid shape modeling driven by archival stellar occultation data (pdf of slides) 11:55 – 12:15 Anna Marciniak: Exploring asteroid shape model uncertainties in occultation fitting (pdf of slides) 12:15 – 12:35 Frank Schaffer: VAMOR Validation of Asteroid Models by Occultation Results (pdf of slides) 12:35 – 12:45 Live Discussion 12:45 – 14:15 Lunch Session: Observation Reports III (Chair: Tim Haymes) Copernicus Hall 14:15 – 15:00 Flavia L. Rommel: A summary of the stellar occultation events by the large TNO 2002 MS4 (V) (Link to paper on arxiv) Session: ESOP 2024 (Chair: Konrad Guhl) Copernicus Hall 15:00 – 15:30 Andreas Eberle: Invitation to the ESOP 43 in Stuttgart + Questions (V) (pdf of slides) 15:30 – 15:45 Closing of ESOP42 16:45 – 18:15 Excursion to Navan Fort & Visitor Centre Monday, September 18
09:45 Meet at Armagh City Hotel <!–› map –> 10:00 – 17:00 Day tour of Armagh (Hill of Armagh & Cathedrals, Robinson Public Library, Armagh Observatory & County Museum; includes lunch at Mulberry Bistro) Tuesday, September 19
0850 (tbc) Meet at Armagh City Hotel <!– map –> 09h00 – 13h00 (tbc) Belfast Day Trip (incl visits to Belfast Castle & City Hall)<!– map –> <!–
09h00 – 12h00 Alhambra visit (pre-booked) 12:00 – 14:00 Move to Parque de las Ciencias and have lunch/tapas there [optional] 14:30 – open end Visit Parque de las Ciencias [optional] –>
(V): Virtual Participation
Last update: 10th September 2023
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Venue and Travel
The conference will be held at Armagh Observatory and Planetarium in the cathedral city of Armagh in Northern Ireland. AOP combines a 230-yr old historic Observatory, home to the Dreyer New General Catalogue and the Shelton “Regulator” clock used by His Majesty King George III to time the 1769 Transit of Venus, with a modern astronomical research department and a state-of-the-art Planetarium facility dedicated to exposing and educating its approx. 15,000 annual visitors to space and astronomy. AOP is one of three historical observatories in Ireland, the others being Birr Castle (Co. Offaly, RoI) and Dunsink Obs. (Co. Dublin, RoI).
In addition to these sites of astronomical interest, the island offers a wide variety of sightseeing destinations to the casual visitor, such as the Antrim coast and Giant’s Causeway, the Titanic Quarter in Belfast or the Sperrin & Mourne Mountain ranges.
For further information about local places of interest, visit:
https://visitarmagh.com/places-to-explore/
https://discovernorthernireland.com/about-northern-ireland/counties/co-armagh/county-armagh/Armagh is served by three airports:
- Belfast International (BFS)
- Belfast City (BHD)
- Dublin International (DUB)
Travel to Armagh from the airport is via bus, taxi or rented car. There is no train station in Armagh. The nearest one is in Portadown (approx 15 min from Armagh by car).
If travelling from one of the Belfast airports, you will need to get a bus into Belfast city centre (service 300 for BFS, 600 for BHD) before taking another bus into Armagh. This will be either the 251 or the 270. From Dublin airport, the bus service to Armagh is the X4. Note that this bus is quite infrequent and also does not accept card payments on the bus. Please check the timetable for up to date times and prices. Bus and train timetables can be found at https://www.translink.co.uk/
Visas and other Authorisations
Participants are responsible for ensuring their own eligibility to enter the UK and, if required, for obtaining the appropriate visa.
The organisers can issue a formal letter of invitation to potential participant that require such a letter for visa or funding purposes. If required, please write to esop42@armagh.ac.uk (Subject: esop42 invitation) and provide your full name, institute, and contact details.
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Accommodation
A block of 40 rooms has been reserved for the nights of Friday 15 – Tuesday 19 September at the Armagh City Hotel. The room booking is inclusive of full breakfast, free wifi, use of the leisure club, complimentary car parking, and VAT. To book a room, delegates must contact the hotel’s Central Reservations office on (+44)28 3751 8888 and choose option 1, or email reservations@armaghcityhotel.com. A credit/debit card number will be required to guarantee the booking. Please quote “Armagh Observatory” at the time of booking to qualify for the discounted rate. The block reservation deadline has now expired.
The Visit Armagh webpages offer more recommendations for accommodation, including self-catered options. You may find other options not listed on the above websites from Airbnb and booking.com.
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Participants
The following people have registered for ESOP XLII:
(listed in alphabetical order of the surname)
Name Organisation Country Talk / Poster Title Tom Alderweireldt (Online)
Antwerp University Belgium – – Sven Andersson IOTA-ES Germany T SODIS – The portal for reporting occultations of stars by minor planets Leroy Arnaud (Online)
IOTA/ES France – – Marcelo Assafin (Online)
Universidade Federal do Rio de Janeiro – Observatório do Valongo Brazil T Kilometer-precise (UII) Umbriel physical properties from the multichord stellar occultation on 2020 September 21 Pierre Barroy (Online)
Université de Picardie Jules Verne Amiens / Planète Sciences France – – Wolfgang Beisker IOTA-ES Germany T Fast Spectroscopy with a Slitless Spectrograph – Using a Blazed Grating with Low Resolution Daniel Błażewicz (Online)
IOTA/ES Poland – – Maciej Borkowski Occultation Section of Polish Amateur Astronomers’ Society; IOTA-ES Poland T – Michel Boutet (Online)
Seysses Amateur Observatory France – – Dr Eberhard Bredner (Online)
Dolberg Observatory; IOTA-ES; DOA; Club Eclipse Paris Germany – – Wojciech Burzynski+3 Occultation Section of Polish Amateur Astronomers’ Society Poland T Distribution and equipment of asteroid occultation observers in Europe Richard Casas (Online)
Institute d’Estudis Espacials de Catalunya Spain – – Dominik Černý+1 Astronomical Institute of Charles University Czech Republic T Occultations as a tool for creation and validation of asteroid models Claudio Costa
(Online)Unione Astrofili Italiani Italy — — Josselin Desmars (Online)
Paris Observatory France – – Andreas Dill VVS Belgium – – Baba Aissa Djounai Center of Research in Astronomy, Astrophysics and Geophysics – Algiers Algeria T The positive Observation of the Stellar Occultation by the Transneptunian Object 19521 Chaos at the Algiers Observatory (CRAAG), on March 29th, 2023 David Waring Dunham (Online)
IOTA USA – – Helio Honorio Dutra (Online)
Valongo Observatory – Federal University of Rio de Janeiro Brazil – – Andreas Eberle (Online)
Sternwarte Stuttgart Germany T Invitation to the ESOP 43 in Stuttgart Leonard Entwisle (Online)
BAA UK – – Daniel Fischer (Online)
Planetarium Bochum Germany – – Bernd Gährken Bavarian Public Observatory Germany T Some observation ideas for the occultation of Betelgeuze Christine Gao (Online)
Westport Astronomical Society USA – – Dave Gault (Online)
Trans-Tasman Occultation Alliance (TTOA) Australia – – Tony George (Online)
IOTA North America USA – – Juliana Grell Stiftung Planetarium Berlin Germany – – Eros de Oliveira Gradovski (Online)
Federal University of Technology Paraná Brazil – – Henk de Groot (Online)
Dutch Occultation Association The Netherlands – – Konrad Guhl+1 IOTA-ES; Archenhold-Sternwarte, Berlin Germany 2xT 1st talk: Planned Observation of the occultation of Betelgeuse by (319) Leona
2nd talk: Baily’s Bead Observation during the TSE 2023 April 20Jan Hattenbach Freelance Science writer Germany – – Werner Hasubick (Online)
IOTA/ES Germany – – Martina Haupt IOTA-ES Germany – – Tsutomu Hayamizu (Online)
Saga Hoshizora Astronomy Center Japan – – Tim Haymes BAA; IOTA-ES UK 2xT 1st talk: Observation highlights in GB/IE region for 2022/3. 2nd talk: How to send light curve reports to Dave Herald using a new feature in Occult4
Dave Herald (Online)
TTOA; IOTA Australia – – Markus Kempf (Online)
Amateur astronomer (unaffiliated) Germany – – Yücel Kiliç (Online)
TÜBİTAK National Observatory Turkey T A Statistical Overview and Current State of the Occultation Portal Oliver Klös+1 IOTA-ES Germany – – Gregor Krannich (Online)
IOTA-ES Germany – – <!–
Mike Kretlow (Online)
IOTA-ES; Instituto de Astrofísica de Andalucía (IAA), Granada, Spain Spain/Germany T CORA – Collaborative Occultation Resources and Archive. Status quo and future plans –>
Jiří Kubánek (Online)
IOTA-ES; Czech Astronomical Society Czech Republic – – Jan Manek (Online)
IOTA-ES; Czech Astronomical Society Czech Republic – – Anna Marciniak+1 Adam Mickiewicz University in Poznań Poland T Exploring asteroid shape model uncertainties in occultation fitting Matheus Isaac Vieira Marques (Online)
Universidade de Uberlândia (UFU) Brazil – – Thierry Midavaine (Online)
Société Astronomique de France; Club Eclipse France – – Richard MILES BAA UK T Stellar Occultations by Comet Nuclei: The Story of Centaur-comet 29P Brian Mills (Online)
RAS; BAA UK – – Miguel Montargès (Online)
LESIA, Observatoire de Paris – PSL France T Photometry and spectroscopy of Betelgeuse (α Ori) during its occultation by 319 Leona on 12/12/2023 Luana Duarte Rodrigues Monteiro (Online)
Universidade Federal de Uberlândia (UFU) Brazil – – Stephane Neveu (Online)
Société Astronomique de France France – – Alfonso Noschese Astrocampania, Napoli Italy T Italian amateurs organization for Betelgeuse occultation om 2023 Dec 12 Michael O’Connell BAA RoI – – Peter Hjorth Olsen (Online)
Amateur astronomer (unaffiliated) Denmark – – Andre Pascal (Online)
IOTA-ES; ADAGIO; QFASTRO; SAF France – – Chrystian Luciano Pereira (Online)
Observatório Nacional (MCTI/ON) Brazil – – Carlos Perelló (Online)
IOTA-ES and Agrupación Astronómica Sabadell Spain – – Julia Perła Adam Mickiewicz University in Poznań Poland T Asteroid shape modeling driven by archival stellar occultation data Tim Polfliet (Online)
Amateur astronomer (unaffiliated) Belgium – – Alex Pratt IOTA-ES, BAA UK T A grazing asteroidal occultation by (325) Heidelberga on 2023 January 19 Vaclav Priban Czech astronomical association; IOTA-ES Czech Republic – – Flavia L. Rommel (Online)
Federal University of Technology – Paraná (UTFPR) Brazil T A summary of the stellar occultation events by the large TNO 2002 MS4 Lionel Rousselot (Online)
Société Astronomique de France France – – Frank Schaffer+1 IOTA-ES Germany T Validation of Asteroid Models by Occultation Results Carles Schnabel (Online)
IOTA/ES & Agrupació Astronòmica de Sabadell Germany T Betelgeuse occultation in Spain Joerg Schoppmeyer (Online)
Amateur astronomer (unaffiliated) Germany – – Andreas Schweizer (Online)
IOTA-ES; SOTAS Germany – – Antoni Selva (Online)
Sabadell Astronomical Society Spain – – William Stewart BAA UK – – Theodore (Ted) Swift (Online)
IOTA USA – – Andreas Tegtmeier+1 IOTA-ES Germany – – Vagelis Tsamis (Online)
Sparta Astronomy Club Greece – – Sotirios Tsavdaridis (Online)
Aristotle University of Thessaloniki Greece – – Serge Vasseur (Online)
Société Astronomique de France France – – Antonio Vecchione (Online)
Astrocampania – Italy Italy – – George R. Viscome (Online)
Rand Obs II – MPC W71 USA – – Hiroyuki Watanabe (Online)
IOTA/EA Japan – – Christian Weber (Online)
IOTA-ES Germany – – Jan Maarten Winkel (Online)
Dutch Occultation Association The Netherlands – – Nikolai Wünsche+1 IOTA-ES Germany T Long-term storage of observation data Marek Zawilski (Online)
Polish Association of Amateur Astronomers (PTMA), Lodz Division, Section of Observations of Positions and Occultations Poland T A short story of the Irish eclipses and occultations -
Social Programme / Excursions
Welcome Reception
19:30 – Welcome reception at Armagh City Hotel
Conference Dinner
The conference dinner will take place at at the Charlemont Arms Hotel, 6:30 PM on Saturday 16th September.
Excursions – Tentative Schedule
Important Note about the Excursions on 18th and 19th: If you intend to participate in either the Sunday evening trip to Navan Centre & Fort, Monday tour of Armagh or the Tuesday trip to Belfast City, we ask that you confirm your participation by sending an email to esop42@armagh.ac.uk. The subject header should read “ESOP Excursions” with the email content being either “NAVAN”, “ARMAGH” or “BELFAST” repeated as many times as the number of participants in the individual trips. For instance, for 1 meeting delegate attending the Belfast trip and Armagh tour + 1 accompanying person attending the Armagh tour, the message should read: “ARMAGH, ARMAGH, BELFAST”. This is to help us gauge numbers and estimate the resource allocation. Excursion participants will be able to pay for the trips onsite during the meeting. Thank You.
Sunday 17th
16:45-18:15 Coach bus trip to Navan Centre & Fort (2 miles from Armagh).
Monday 18th – Walking tour of Armagh City
10:00-12:00 Hill of Armagh incl. Church Of Ireland Cathedral, Robinson Library & Registry
12:20-13:00 St Patrick’s Catholic Cathedral
13:20-14:20 Lunch and Refreshments @ Armagh City Hotel
14:30-15:30 Talk & tour at Armagh County Museum
16:00-17:00 Tour of Armagh Observatory (exact time TBC)
Tuesday 19th – Coach bus trip to Belfast
0900-1300 (includes visits to Belfast Castle and City Hall; Exact itinerary TBC)
Please use this link to pay for the Belfast excursion.
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Contact
Scientific Organising Committee: Apostolos Christou
Local Organising Committee: Heather Alexander, Apostolos Christou, Simon Jeffery, Gavin Ramsay, Marc Sarzi, Sinead Mackle, Laura Scott, Aileen McKee, Ceara Ryan
The LOC and SOC can be contacted by sending an email to esop42@armagh.ac.uk