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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

Living proof of transformation

2012-07-20

Prof. Pumla Gobodo-Madikizela (middle) facilitated a dialogue with Archbishop Emeritus Desmond Tutu and Prof. Mark Solms on the Transformation in the Solms-Delta Wine Estate.
Photo: Johan Roux
18 July 2012

“We have the capacity to make a success of South Africa. We have incredible people who refuse to leave the country and want to make a difference.” This is according to Archbishop Emeritus Desmond Tutu who was speaking at the University of the Free State (UFS) today.

Dr Tutu took part in a dialogue with Prof. Mark Solms, owner of the Solms-Delta wine estate in Franschhoek.Prof. Solms is also an A-rated scholar and the Head of the Department of Psychology at the University of Cape Town.The theme of the dialogue was “Living Reconciliation: Winds of Change in Franschhoek and Transformation at Solms-Delta Wine Estate”.

Prof. Solms led an initiative to transform the lives of farm workers on the estate through the Wijn-de Caab Trust. This initiative was extended to empower the wider community of farm dwellers when Prof. Solms co-founded the Delta Trust and the Franschhoek Valley Transformation Charter.

The dialogue was the second in the Dialogue between Science and Society series and was facilitated by Prof. Pumla Gobodo-Madikizela, Senior research professor on Trauma, Forgiveness and Reconciliation at the UFS. The Dialogue series aims to inspire new ways of thinking about responsible citizenship. It also highlights the unique and important ways of engaging with the critical issues of social equality, social justice, social transformation and reconciliation in South Africa.This morning Dr Tutu said the work done in the Franschhoek community is proof that people cannot prosper alone if others are also not prospering. “We belong together. Why did it take us so long to realise it? South Africans have the capacity to make South Africa a better place. It is unacceptable that people go hungry and go to school under trees. It is unacceptable that they still have no books in the third term, and that the pass rate is 30%.

“Is this why we struggled, why people died? We want to go to our graves smiling… we will not be allowed peace and stability if we do not attend to the problems.”

Prof. Solms said the miracle of the political transformation did not trickle down to the people. A lot has been done, but much more needs to be done. “It can only be done by us. It is not the government’s responsibility. The way we live as a result of apartheid is that we are a deeply divided society. We must recognise this and do something to change it.”

He encouraged people to think “small”. An individual cannot change the whole country, but the changes in his community are there to see.

Dr Tutu also congratulated the UFS on becoming a truly South African university, recognising the transformation of the past few years.

The dialogue was presented at the Global Leadership Summit that 250 students and academic leaders from 21 international universities are participating in. The summit runs until Friday 20 July 2012.

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