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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

R40 million construction contract with black empowerment group starts at UFS

2006-09-04

During the ceremonial kick-off of the biggest construction project in the history of the UFS were from the left: Ms Vuyiwe Mkhupha (Manager of Sikeyi Construction), Prof Frederick Fourie (Rector and Vice-Chancellor of the UFS) and Prof Steve Basson (Head of the UFS Department of Chemistry). Photo: (Gerhard Louw)

R40 million construction contract with black empowerment group starts at UFS

The biggest construction contract in the history of the University of the Free State (UFS) to the value of R40 million has started on the Main Campus in Bloemfontein. The contractors are Ströhfeldt Construction, in a joint venture with Sikeyi Construction, a black empowerment partner.

The contract comprises the extensive modernising, refurnishing and extension of the Chemistry Building. This is the highest amount the UFS has ever spent on the refurnishing of a building.

A number of initiatives have contributed to the fact that the UFS Department of Chemistry is one of the foremost chemistry departments in the country:

Expensive equipment and apparatus to the value of almost R20 million were acquired by the department the past year;
The basis of this is a strategic partnership with Sasol, the biggest research and development company in the country;
The purchase of the most advanced 600MHz nuclear magnetic resonance spectro meter in Africa;
The purchase of a single crystal X-ray diffractometer; and
The purchase of a differential scanning calorie meter, used to test the effect of heat on chemicals. This apparatus comprises of the most advanced detectors in the world.

“Natural scientists need the necessary equipment, apparatus and laboratories to be able to exercise world-class science. Three years ago the UFS top management made a strategic decision to focus strongly on research and on our laboratories and lecture halls,“ said Prof Frederick Fourie, Rector and Vice-Chancellor of the UFS, during the launch of the Chemistry Building’s refurbishment.

“I regard this project as a symbol of our investment in science and the academy,“ said Prof Fourie.

Prof Fourie said that the UFS spent almost R100 million in the last 5 years to renovate the Main Campus. New buildings such as Thakaneng Bridge were built and other such as the Reitz Dining Hall was renovated and converted into the Centenary Complex. “These projects, together with the refurbishment of the Chemistry Building, also show how the UFS contributes to the development and growth of not only Bloemfontein, but also how we invest in the Free State,“ said Prof Fourie.

According to Ms Edma Pelzer, Director: Physical Planning and Special Projects at the UFS, the current building originally comprised of the Moerdyk Building built in 1949 and a newer wing built in 1966. This building became too small and obsolete and a new part is now being added to the eastern side.

According to Ms Pelzer a great deal of the project comprises the dramatic upgrading and modernising of laboratories, existing mechanical systems and the installation of new systems. “The nature of the work of staff and students demands sophisticated mechanical systems such as air conditioning, fume hoods, the provision of gas, etc and therefore these received specific attention. The research laboratories, lecture laboratories and office areas will also be separated for safety and greater efficiency,” said Ms Pelzer.

“Interesting design solutions for the complex needs of the department were found and I foresee that the building and its immediate environment will be an adornment to the Main Campus after its expected completion in 2008,” said Ms Pelzer.

Media release
Issued by: Lacea Loader
Media Representative
Tel: (051) 401-2584
Cell: 083 645 2454
E-mail: loaderl.stg@mail.uovs.ac.za
14 September 2006

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