All posts by Allen Versfeld

Allen is an amateur astronomer, an IT professional, a podcaster, a father of five beautiful kids and a barely competent chess player. He is also the director of the Astrophotography Section of the Astronomical Society of South Africa, where he coordinates and promotes the activities of people who are far better photographers than him.

By Allen Versfeld on March 24, 2020 in
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Today episode of Urban Astronomer will feature Dr Tana Joseph, an astrophysicist with a special interest in extra-galactic X-ray binary star systems. She is also the founder and owner of AstroComms, a STEM consultancy and communications company.

By Allen Versfeld on March 10, 2020 in
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In this episode, Allen gets called out by a listener for defending the old Geocentric model of the universe, and tries to explain why he did it.

By Allen Versfeld on February 25, 2020 in
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In this episode, Allen will discuss about cultural astronomy with Dr Jarita Holbrook

By Allen Versfeld on February 5, 2020 in
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In this science explainy bit episode, we answer the pressing question of why planets always seem to orbit in the same plane. Why are their motions aligned like that?

By Allen Versfeld on December 24, 2019 in
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Today, @uastronomer interview Dr. Rosalind Skelton ( @skelly_ros ) of the @SAAO about her research interests include the impact of mergers on the growth of galaxies, the mechanisms that shut down star formation in galaxies & more at #365DaysOfAstro

By Allen Versfeld on December 10, 2019 in
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Today we try to figure out just what an “orbit” actually is. How does gravity, which normally pulls things down, work to keep the Moon up in space?

By Allen Versfeld on November 26, 2019 in
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Today, @uastronomer will feature Dr Daniel Cunnama, the Science Engagement Astronomer at the SAAO and co-host of @cosmicsavannah. More at #365DaysOfAstro

By Allen Versfeld on November 13, 2019 in
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Why are planets always round? Lets find the answer with @uastronomer at #365DaysOfAstro