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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

Kovsies to celebrate excellence at 2014 December Graduation Ceremony

2014-12-02

Live streaming: http://apps.ufs.ac.za/ufslivestreaming/

On Thursday 11 December 2014, the University of the Free State (UFS) will award degrees and qualifications during our Summer Graduation Ceremony at the Bloemfontein Campus.

The graduation will take place during two ceremonies in the Callie Human Centre, where master’s and PhD degrees will be awarded during the first ceremony at 09:30. Diplomas, certificates and undergraduate qualifications will be awarded to students from the School of Open Learning and the Faculty of Health Sciences at 14:30.

Radio personality, Redi Thlabi, and cardiothoracic surgeon, Dr Susan Vosloo, will address the graduates.

Apart from her radio show on 702 and CapeTalk, Thlabi has also hosted local television news shows and anchored for international broadcasters like SKY and the BBC. In addition, she has presented two of her own TV shows: ‘Redi’ on Mzansi Magic and ‘South to North’ on Al-Jazeera.

Her first book, Endings and Beginnings (Jacana) received popular acclaim and is currently being turned into a screenplay for a movie.

Dr Susan Vosloo, a Kovsie alumnus, graduated in 1980. She completed her internship in Pretoria and spent the following year in Critical Care Medicine at Universitas Hospital, Bloemfontein, before starting her surgical training in Johannesburg.

She is currently in independent private practice at the Netcare Christiaan Barnard Memorial Hospital in Cape Town, having also worked from 1998 – 2012 at the Vincent Pallotti Hospital in the same city.

Dr Vosloo maintains close ties with our university and has quite a number of addition roles to that of surgeon:

• member of the Council of the UFS;
• UFS Council Representative in the Senate;
• member of the Standing Advisory Committee of the School of Medicine, UFS;
• member of the Provincial Department of Health;
• Africa representative for the Pediatric Cardiac Intensive Care Society; and
• founding member of the World Society for Pediatric and Congenital Heart Surgery.

Prof Boelie Wessels will also be awarded his 10th academic degree from the UFS since 1974. Adding his Honorary Doctorate degree to the list, it will make this his 11th degree. Prof Wessels is 84 years old and has 18-plus academic qualifications from various institutions – a phenomenal achievement.

Furthermore, Moses Lubinga and his wife, Stellah, will be the first married couple to be awarded their PhDs at the same graduation ceremony at the UFS. Mr Lubinga will receive his Doctorate in Agricultural Economics, while Mrs Lubinga’s PhD is in the field of Economic and Management Sciences.

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