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Close encounters of the planetary kind

28 January 2021 | Story Igno van Niekerk | Photo Supplied

conjunction_web read more — Pictured from the left: Lucas Erasmus from the Department of Physics, Piet le Roux from the Astronomical Society of SA – Bloemfontein, Quinton Kaplan from the Department of Physics, Thinus van der Merwe from the Astronomical Society of SA – Bloemfontein. Front: Prof Matie Hoffman

In his book, The World is Flat, Thomas Friedman mentions how at first countries, then companies, and eventually communities went global. In true flat-world fashion, a combined team of the University of the Free State (UFS) and the Astronomical Society of South Africa – led by Prof Matie Hoffman, Associate Professor in the Department of Physics – participated in a once-in-a-lifetime event with their counterparts from the Ellinogermaniki Agogi School and the Skinakas Observatory in Greece.

On 21 December 2020, Earth was treated to the Jupiter-Saturn conjunction, when the two planets were only 0.1 degrees apart in the sky. Although conjunctions are regular phenomena, NASA mentions that the great conjunction of Jupiter and Saturn in 2020 was the closest since 1623 and the closest observable since 1226! A pinkie finger at arm’s length could cover both planets – although they were still millions of kilometres apart in space.

Planning started months ahead of the event, with the Ellinogermaniki Agogi Observatory in Greece and the Boyden Observatory in Bloemfontein chosen as the two selected vantage points. From both the Southern and Northern Hemisphere, the conjunction would be broadcast live on YouTube. As with any other technical project on an international scale, challenges arose. For example, in the Northern Hemisphere, it was already dark at 17:45 while the South African astronomers were still basking in sunlight until after 19:00. The conjunction would only be visible from South Africa after 19:30, almost two hours after it would be visible in Athens. The time was well used, with the event including a word of welcome by the Consul General of Greece in South Africa, Ioannis Chatzantonakis, presentations on Saturn and Jupiter, as well as a virtual tour of the Boyden Observatory, emphasising its connection with Greece through its first Director, Stefanos Paraskevopoulos.

On Saturday, 19 December, the teams ‘gathered’ on opposite sides of planet Earth to do a dry run. One could sense the urgency and tension as both teams realised that they would have a huge captive audience on YouTube, and plans had to be made in case of connectivity challenges and if the weather did not allow the conjunction. As preparations progressed, Prof Hoffman was talking to his Greek counterparts and was simultaneously walking around with his laptop to share the landscape and activities via his webcam with colleagues in Greece.

Monday 21 December 2020 – the weather prediction was correct. Clouds covered the Free State sky and scattered raindrops started to fall. Revert to Plan B. A recording made on Saturday evening was shared via the YouTube link, while a live feed of the conjunction from elsewhere in South Africa was arranged. From both sides of the world, information was shared about the history of the venues, as well as the marvel of what was happening in space. Fortunately, expert planetary photographer Clyde Foster was able to share a live feed just after 19:30 from the observatory at his home in Centurion, Gauteng. Those attending the event where visuals and speakers were together on one screen – yet thousands of kilometres apart – watching an event in outer space, will indeed agree with Thomas Friedman: the world is flat. The live-stream event of the conjunction was a catalyst that will result in continued collaboration between the UFS and colleagues in Greece in the field of astronomy.

By the time of this writing, the livestream has reached more than 50 000 people.

Watch: Coverage of the Jupiter-Saturn conjunction here

News Archive

International ties for OSM

2013-08-21

Prof Nicol Viljoen in the historic Teatr Zdrojowy in Walbrzych, Poland
20 August 2013

Profs Nicol and Martina Viljoen from the Odeion School of Music (OSM) recently undertook a very successful trip to Europe where Prof Nicol Viljoen rendered two solo piano recitals in Poland. They also delivered a joint paper at a congress in Budapest.

The first of the two recitals were held in Crakow at the famed Zespol Panstwowych School of Music. At this event, Prof Viljoen essentially recited Chopin Mazurkas and was invited to repeat this performance in Poland in the future.

The second piano recital was in the historicTeatr Zdrojowy im. Henryka Wieniawskiego in Walbrzych. This concert included Preludes, Mazurkas, as well as the Ballad in G minor by Chopin. After the Mazurkas, the audience rewarded Prof Viljoen with a standing ovasion – and again at the end of the concert. As a result of this, the chief organiser of the event, Jerzy Kosek, who is also the conductor of the Filharmonia Sudecka, invited Prof Viljoen to perform as soloist with his orchestra next year.

Kosek also invited Conducting students at the OSM to work with the Filharmonia under his leadership on an exchange basis. He indicated that he would like to strengthen the ties with the University of the Free State and the Odeion School of Music. Two members of the Filharmonia Sudecka are currently doctoral students in Performing Arts at the OSM, namely Karol Legierski (concertmaster) and Marianne Cilliers (first violin), while the co-concertmaster, Dorota Graca, is in the process of registering for doctoral studies at the OSM.

The paper delivered by Profs Viljoen in Budapest, formed part of the interdisciplinary congress, ‘The Arts in Society,’ where more than twenty countries were represented. Their paper dealt with the post-apartheid oeuvre of the South African composer, Hans Huyssen. Charla Schutte, another doctoral student at the OSM, delivered a paper on an interpretation of indoctrination songs on the basis of an analytical model by the philosopher Johann Visagie.

During the trip, Prof Martina Viljoen also had a productive meeting with the executive manager of Common Ground Publishers, an academic publisher based in the USA, with a view to publish work from the OSM.

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