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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

First-years welcomed to the Kovsie family

2017-01-30

Description: Prof Francis Petersen Tags: Prof Francis Petersen

Newly appointed Vice-Chancellor and Rector of the
University of the Free State, Prof Francis Petersen during
the first-year welcoming.
Photo: Charl Devenish

“How do you like my new blazer? Do you think these stripes suit me?” These were the words of the newly appointed Vice-Chancellor and Rector of the University of the Free State, Prof Francis Petersen, as he took to the stage in his #ProudlyKovsies blazer to welcome the 2017 first-years to the Kovsie family.

The event, which was also the start of the first-year Gateway Programme, took place on Saturday, 21 January 2017, and saw first-years and their parents make their way to the Red Square on the Bloemfontein Campus where they were formally welcomed.

UFS to produce world graduates
As newcomers, Prof Petersen wanted the fresh faces to feel welcome, to feel a sense of belonging. “You are now a Kovsie, and we want you to experience that Kovsie life until you graduate,” he told them.

During his speech, Prof Petersen reassured parents that the academic year would be completed and that the UFS would operate as an institution. He encouraged the students to absorb and gain knowledge and said the university would strive to ensure excellent knowledge. “At the UFS, we want to produce graduates for the world, and we need to ensure that we use our knowledge to uplift society,” he said.

Use differences to benefit from one another
KovsieFM presenters, Tshwaro Thothela and Gontse Choane played host to the gathering and Pura Mgolombane, Dean of Student Affairs, encouraged the first-years to use their differences to benefit from one another and to learn from this opportunity. “Make sure that the good that you do is for yourself, for others and for the university,” he said.

Prof Nicky Morgan, Acting Vice-Chancellor and Rector, welcomed Prof Petersen, his wife Cheslyn, and their two sons, Curtis and Clayton, to the UFS.

The newcomers also had an opportunity to visit their respective faculties and get to know the staff and facilities better.

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