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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

Women must fight for equal opportunities - Motshekga

2010-08-06

Photo: Stephen Collett

“We will not know peace and prosperity unless all women are free. We must open opportunities for women and make sure that we achieve the necessary progress. I believe this would be the best way to honour the life of Charlotte Maxeke.”

This rallying call for action was made by the Minister of Basic Education, Ms Angie Motshekga (pictured), in her speech to commemorate the life of Charlotte Maxeke, a woman she described as “a heroine” to all South Africans.

The University of the Free State (UFS), in conjunction with the Free State Premier’s office, presented the annual Charlotte Maxeke Memorial Lecture at the Main Campus in Bloemfontein to once again honour this remarkable African woman as part of celebrating Women’s Month.

“We must ensure that we act consciously to extend equal opportunities, freedom and justice to all women,” she said. “We must put all our energies together in this task of uplifting women and children.”

She said that even though women had made considerable strides since the advent of democracy in South Africa, especially in government, much still had to be done to ensure equal opportunities for all women.

“There’s a 40% women representation in government, but the question we should ask ourselves is: What value does this representation bring to the life of an ordinary woman? What impact does it have on her life?” she asked.

She said women were still less represented in managerial positions. “Sexism requires the same amount of energy that we use to fight against racism,” she said.

She also announced that the government had decided to declare the graves of Charlotte Maxeke, Lillian Ngoyi and Helen Joseph as national heritage sites.

The well-attended lecture was entitled: United in action to make 2010-2020 a decade for women in Africa.

Among those present were members of the ANC Women’s League, who came in buses and mini-buses; Dr Allan Boesak and his wife; past and present Free State MECs; and the Vice-Rector of External Relations at the UFS, Prof. Ezekiel Moraka.

Media Release:
Mangaliso Radebe
Assistant Director: Media Liaison
Tel: 051 401 2828
Cell: 078 460 3320
E-mail: radebemt@ufs.ac.za
6 August 2010

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