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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

Lots of inspiration at Autumn Graduation Ceremony

2013-04-18

Graduates celebrate the results of years of study at the graduation ceremony on the Bloemfontein Campus.
Photo: Hannes Pieterse
17 April 2013

Live streaming of ceremonies available from 16 April - 19 April 2013: http://www.ufs.ac.za/ufslivestreaming/

Joshua Johnson YouTube video

The university’s Autumn Graduation Ceremony got off to a vibrant start with energetic performances and inspiring messages for graduates.

Joshua Johnson, an American student who uses his talent for tap-dancing to fund his tertiary education, mesmerised the audience on the first of the four-day graduation ceremony with his story of hope and perseverance. The student from Penn State University travels five hours by bus to New York every weekend where he tap-dances on the subway trains to earn money for his tuition fees.

Delivering a keynote address, Joshua told graduates that, in order to achieve their goals, they have to understand and work diligently with the 24 hours they get to live daily. “Start with a bang and end with a bang,” he said, encouraging the audience in the nearly-packed Callie Human Centre to join him in a rhythmic tap-dancing beat.

“Don’t follow in the footsteps of someone else. Take the beat of life, but add your rhythm to it," his wise words resonating with the exhilarated graduates.

Joshua will be the guest speaker at the ceremonies on 16, 17 and 19 April 2013 and will deliver a dance item during each occasion.

Dr Khotso Mokhele, Chancellor of the University, echoed Joshua‘s message, telling graduates not to be discouraged by life’s difficulties.

“Take what you have learned over the last three or four years and use that knowledge to reach your goal,” he advised.

Prof Jonathan Jansen, Rector and Vice-Chancellor, encouraged them to continue to study. “To break the cycle of poverty, get an education, get a degree.” He told them that as graduates they are ten times more likely to get a job, with the odds rising as they continue their postgraduate studies.

Well-known radio host and Idols South Africa judge, Gareth Cliff, will be the guest speaker at two ceremonies on 18 April 2013. He will be joined by Vicus Visser, the South African YouTube singing sensation. Dubbed Bloemfontein’s Justin Bieber, Vicus and his brother Vincent will perform during these two ceremonies.

The programme for the respective ceremonies is:

Wednesday 17 April

09:30 Diplomas and certificates up to and including honours degrees in the Faculty of Education.
14:30 Diplomas and certificates up to and including honours degrees in the Faculties of Health Sciences, Law and Theology.

Thursday 18 April

09:30 Diplomas and certificates up to and including honours degrees in the Faculty of Natural and Agricultural Sciences: only Agricultural Sciences and Architecture.
14:30 Diplomas and certificates up to and including honours degrees in the Faculty of Natural and Agricultural Sciences: only Natural Sciences.

Friday 19 April

09:30 Diplomas and certificates up to and including honours degrees in the Faculty of Economic and Management Sciences: all diplomas and degrees in the Faculty, except BCom and BComHons.
14:30 Diplomas and certificates up to and including honours degrees in the Faculty of Economic and Management Sciences: only BCom and BComHons.

The Qwaqwa Campus’ graduation ceremony will take place on 8 June 2013. Diplomas/certificates up to and including doctorates will be awarded at this ceremony.

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