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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

Vice-Chancellor honoured with major awards

2013-05-02

02 May 2013

The University of the Free State (UFS) is proud to announce that Prof Jonathan Jansen, Vice-Chancellor and Rector, has been awarded a number of major awards recently.

The University of California in the United States awarded him the Alice and Clifford Spendlove Prize in Social Justice, Diplomacy and Tolerance. The award is made in recognition of persons who exemplify in their work the delivery of social justice, diplomacy and tolerance in the diverse local and global society.

“The committee was very impressed with the commitment that Prof Jansen has had to reconciliation and forgiveness as a way to build bridges and to find common ground. Prof Jansen is following in the steps of many of our greatest peace-time leaders and we support his efforts to bring understanding to all cultures,” said Mark Aldenderfer, chair of the awards committee and Dean of the School of Social Sciences, Humanities and Art at the University of California.

Prof Jansen also received the 2013 Academia Award at the Sixth Annual Ubuntu Lecture and Dialogue Awards Ceremony of the Turquoise Harmony Institute on 4 April 2013 in Johannesburg. The Institute aims to foster relations among different faith and cultural traditions to contribute to the well-being of humanity.

According to the organisers, “outstanding individuals who made noteworthy contributions to dialogue, peace and harmony in the society,” are given recognition during the ceremony. The awards are made in a number of different categories. Prof Jansen was among the recipients who included Graca Machel and the South African National Editors Forum (SANEF). Previous winners of Turquoise Awards include Ahmed Kathrada, Chester Williams, Dr Frene Ginwala and Prof Russel Botman.

On 10 May 2013, Prof Jansen was also honoured by Kappa Delta Pi International Honour Society in Education. He was awarded membership of the Laureate Chapter of the society founded in 1911 which “is comprised of men and women who have made distinguished contributions to education, and is limited to 60 living persons”. Prof Jansen joins an exclusive membership of 293 which includes such luminaries as Albert Einstein, Eleanor Roosevelt, Jean Piaget and George Washington Carver.

Also in the United States, Prof Jansen has been invited to be Messenger Lecturer for Fall 2013 at Cornell University. He will give three lectures and interact with the students and staff of Cornell at various functions.

“This is a significant honour and it will really allow members from across the university to get a deeper appreciation of the work you are doing at UFS and in South Africa more broadly,” said Prof Judith Byfield of Cornell’s Department of History and Director of Graduate Studies at the department’s Africana Studies and Research Centre.

On the local front, City Press published its inaugural 100 World Class South Africans on 28 April 2013. During a rigorous selection process, 100 of our country’s most extraordinary citizens who have achieved world-class status were chosen. Prof Jansen’s achievements procured him a place on this prestigious list in the category: Heroes and Mavericks.

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