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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

UFS medical students reach out to the community

2011-04-16

The smiles on the children at Beyang Bana Pele Creche in Mangaung were blindingly bright, after their new classrooms and playground were unveiled on Friday 15 April. The creche was renovated by a group of third-year medical students from the UFS.
Photo: Earl Coetzee

A group of third-year medical students from the University of the Free State was responsible for many smiling little faces when they unveiled a entirely renovated crèche to its little students on Friday, 15 April.

Reinhardt Erasmus, Fathima Vawda, Veneshree Govender, Antoi Roets, Riaan Calitz, Motlalepula Mabizela, Tertius Potgieter and Chanel van der Westhuizen were the students responsible for the massive renovation work that went into the Beyang Bana Pele Creché in Mangaung.

The students tackled the project as part of a community service project and ensured that the 30 children who attend the crèche can look forward to coming to a safe healthy environment every day.

According to Riaan Calitz, they started the project at the beginning of the year by doing a needs analysis and talking to the children’s parents and teachers. They also involved the aid of an architect and quantity surveyor to calculate the needs of the crèche.

Next, they had to search for sponsors for their work, and struck it lucky when the Windmill Casino agreed to donate R100 000 to their project. They also managed to raise a further R5 000 as well as approximately R50 000 in goods and services donated by various other companies.

This money was enough to improve the safety at the crèche, install safe gas equipment in the kitchen, improve the insulation to ensure a warm winter, install new playground equipment and host several health and safety workshops.

“It took a lot of late nights and early mornings,” Calitz said. “Some of us also had to return from our holiday early, but it was worth it.”

He says the gratitude from the school’s children and teachers, as well as community members, who would stop and thank them for their help while they were busy working, makes it all worthwhile.

The students plan to stay involved with the crèche and say the renovation plan was drafted in such a way that when they move along, another group can simply pick up from their work with ease.

Mrs Sarah Mothoana, the crèche matron, thanked the students as well as everyone who assisted them in “creating a wonderful, safe and healthy environment for the children.”

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