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.
This image is the last winner we have from the eleven categories in the Insight Astronomy Photographer of the Year competition 2015 — that of using a robotic telescope. It shows the power of remote imaging, since Sebastian Voltmer in Germany used the iTelescope at Siding Spring Observatory in Australia to capture Comet C/2013 A1 passing very close to Mars on 19 October 2014.
This spectacular six-panel mosaic picture of a solar prominence was taken in Italy by astrophotographer Paolo Porcellana on 27 March 2015 using a home-made 150mm f/15 refractor — winning image of the Our Sun category in the Insight Astronomy Photographer of the Year competition 2015.
Omega (ω) Centauri, or NGC 5139, is the brightest and largest globular cluster. This showpiece object of the southern sky is captured here in all its glory by astrophotographer Ignacio Diaz Bobillo — winning image of the Stars & Nebulae category in the Insight Astronomy Photographer of the Year competition 2015.