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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

Almost 2000 degrees and diplomas conferred at Winter Graduation

2015-06-26

Live streaming will be available on: http://livestream.ufs.ac.za/

The 2015 Winter Graduations are almost underway. The highlight on the university calendar for every graduate will take place on the Bloemfontein Campus on 1-2 July 2015. On 1 July 2015, diplomas will be awarded by the Centre of Financial Planning Law (331 in total) and the School of Open Learning (376 in total). On 2 July 2015, a total of 1 220 master’s and doctoral degrees will be awarded to graduates from all seven faculties.

A highlight at this year’s Winter Graduation is the awarding of three honorary degrees by the university. Ambassador Lakhdar Brahimi, Dr Mercy Oduyoye and Mr John Samuel will receive honorary degrees.

On 17 August 2012, Ambassador Brahimi was appointed by the United Nations as the new peace envoy to Syria, replacing Kofi Annan. He is also a member of the Commission on Legal Empowerment of the Poor, the first global initiative to focus specifically on the link between exclusion, poverty and the law. Prof Heidi Hudson, Head of the Centre for Africa Studies at the UFS, will receive the honorary degree on his behalf.

Dr Oduyoye is widely regarded as one of the most influential women theologians Africa has produced in recent history. Currently, she directs the Institute of African Women in Religion and Culture at the Trinity Theology Seminary in Legon, Ghana.

Mr John Samuel, who will receive an honorary award, is also scheduled to be a guest speaker at the two ceremonies on 1 July 2015.

Wednesday 1 July 2015:

John Samuel will be the speaker at both ceremonies. He is one of South Africa’s leading education experts with international and national experience, covering a period of more than forty years. He was involved in the founding of the South African Campaign: Public Participation in Education Network (PPEN), established the Centre for Education Policy Development, the Joint Working Group (for The National Party Government and the ANC), the National Education Conference, and the National Education and Training Forum. He also made leadership contributions to the First Education and Training White Paper, the Transformation Strategy for the National Education Department, and the first Green Paper on Higher Education.

John is also Senior Programme Director of the WK Kellogg Foundation in the USA. He has also been the Chief Executive of the Nelson Mandela Foundation, and the CEO of the Oprah Winfrey Leadership Academy for Girls.

Thursday 2 July 2015:

Nataniël will be the speaker at both ceremonies. Nataniël is a singer, songwriter, and South African entertainer, who has crossed from the alternative circuit to the stage. For the past 10 years, he has become well-known for his outspoken Kaalkop column in SARIE magazine. His solo career was launched in 1987 and, since then, he has released 16 albums, staged more than 70 original theatre productions, and published 15 books. Over the past two decades, Nataniël has gained the title of South Africa’s leading exponent of the solo stage act. He manages Kaalkop Studio, his lifestyle retail company, and records on his own independent label, Nataniël House Of Music. He is an ambassador for Child Welfare SA, and also heads his own charitable foundation, The Nataniël Progress Project.

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