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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 presents unique rally

2005-06-07

On Friday 10 June 2005, the University of the Free State (UFS) will present the Kovsie version of the Amazing Race in Bloemfontein.

The Amazing Rainbow Rally will be held in aid of children and babies with serious diseases in the Department of Pediatrics and Child Health in the Faculty of Health Sciences.

By raising the necessary funds, equipment can be acquired to meet the unique health care needs of these special patients. It will also enable the UFS to maintain the high standards of education, training and research in this field.

The Amazing Rainbow Rally will give some residents of Bloemfontein an opportunity to test their knowledge of the city, as well as their time management skills, communication skills, team work and even their relationships!

About 12 corporate teams from among others Vodacom, Eskom, Medi-Clinic, Mimosa Mall and Nedbank and four university teams must follow a specific route with various checkpoints by car. Here they will have to complete activities or solve clues before receiving their clue to the next checkpoint. Teams will be traveling with cars branded with the logo of the company they represent.

The rally will start at 09:00 at the Rooiplein of the UFS and will again end on the campus where they will complete the last task. The first team to complete this task is the winner of Bloemfontein’s first Amazing Rainbow Rally.

OFM’s breakfast team will do live crossings on the day to reveal how teams are doing.

The Department of Pediatrics and Child Health at the UFS serves children with special needs, in other words children who need intensive care, or who suffer from cancer, heart disease, neurological diseases and conditions, endocrinological diseases or gastro-enterological conditions.

The Department provides secondary health care to more than 250 000 children in the southern parts of the Free State, but is responsible for the tertiary care of about a million children in the Free State and Northern Cape, as well as some parts of the North-West province, the Eastern Cape and Lesotho. The intensive care units at Universitas and Pelonomi Hospitals serve approximately 1 300 neonatal and 350 intensive care patients annually. The pediatric cardiology unit admits almost 300 high care heart patients per year. Approximately 13 000 out-patients visit these two hospitals every year.

MEDIA RELEASE

Issued by:  Lacea Loader
   Media Representative
   Tel: (051) 401-2584
   Cell: 083 645 2454
   E-mail: loaderl.stg@mail.uovs.ac.za

7 June 2005

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