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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

An incident-free recess for the UFS

2010-07-19

The improved security measures at the University of the Free State (UFS) have resulted in an incident-free recess on the Main Campus in Bloemfontein during the 2010 FIFA World Cup and the annual Volksblad Arts Festival.

The UFS provided accommodation for international spectators visiting the country for the World Cup and recently also hosted the hugely popular Volksblad Arts Festival without any security glitches.

These successes could be attributed to the hard work of staff members from various divisions at the UFS to ensure that the security was improved.

“The main question we had to deal with was: should our Main Campus be fenced off? This matter had been under discussion for quite some time. In order to ensure the feasibility thereof, a second impact study was done by a consulting engineer,” said Prof. Niel Viljoen, Vice-Rector: Operations at the UFS.

“This study has shown that, given the nature of activities on the campus and the access configuration, it would be difficult, if not impossible, to effectively control access to the campus, especially as far as visitors were concerned. Any type of access control measure would result in delays at the gates, which could have a major impact on the traffic flow, delays, costs and emissions.”

“It is important that our staff and students feel safe on the Main Campus, whether they are walking on campus or working in their offices. In that way we can ensure an environment that is conducive to staff and students to work and study,” he said.

Various measures are being implemented to make the campuses safer. These include, among others:

The installation of alarms in buildings on the Main Campus. The project for the South Campus has been completed and the installation of a new alarm system on the Qwaqwa Campus will start soon.
Staff and students will be required to wear identification cards once the new identification system has been put in place. These cards will allow access to all buildings.
Fences around the Main Campus are being repaired and the areas around these fences are being cleaned. This project should be completed by August 2010.
Lights will be installed in badly lit areas on the Main Campus. The first phase of this project includes the area between the Mooimeisiesfontein, Welwitschia and Vergeet-my-nie residences. This project will also be completed by August 2010.
The walkways on the Main Campus will be patrolled more frequently and effectively.
Contracted security workers will be utilised more effectively.
The monitoring of security cameras on the Main Campus on a 24/7 basis. “For this purpose the security room of our Protection Services is in the process of being upgraded,” said Prof. Viljoen.

The possibility of placing security cameras and panic buttons in parking areas and walkways is investigated.

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

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