“Solar Prominence” by Gary Palmer

Astronomy Photographer of the Year 2015

2 August 2015 Astronomy Now

Searing hot loops of plasma radiate from the edge of our local star – the Sun – in a phenomenon known as a solar prominence. Emanating from the Sun’s photosphere, its outer shell from which light is emitted, prominences extend to the corona, which is the aura of the plasma surrounding it. A typical prominence covers over thousands of kilometres, with the largest ever recorded estimated to be over 800,000 kilometres, equalling roughly the radius of the Sun itself. Image credit: © Gary Palmer / Royal Museums Greenwich.
Searing hot loops of plasma radiate from the edge of our local star – the Sun – in a phenomenon known as a solar prominence. Emanating from the Sun’s photosphere, its outer shell from which light is emitted, prominences extend to the corona, which is the aura of the plasma surrounding it. A typical prominence covers over thousands of kilometres, with the largest ever recorded estimated to be over 800,000 kilometres, equalling roughly the radius of the Sun itself. Image credit: © Gary Palmer / Royal Museums Greenwich.
The Insight Astronomy Photographer of the Year competition is an annual celebration of the most beautiful and spectacular visions of the cosmos by astrophotographers worldwide. In 2015 the competition launched for its seventh year, with new categories and more prizes up for grabs. With over 2700 spectacular entries from over 60 countries, it’s been the toughest year yet for the judges.

Over the coming weeks we will feature, in no particular order, each of the final 16 selected images and winners will be announced by Royal Museums Greenwich on 17 September. The winning images are to be showcased at the Royal Observatory Greenwich in an exhibition opening 18 September.

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