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 glorious image of the core of Local Group galaxy Messier 33 (NGC 598) in the constellation Triangulum was captured from Almere, Flevoland, Netherlands by astrophotographer Michael van Doorn — winning image of the Galaxies category in the Insight Astronomy Photographer of the Year competition 2015.
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.
This image was captured from Sunset Peak, Lantau Island, Hong Kong by astrophotographer Chap Him Wong. Above the peak covered with gold and silver grass, the tantalising sky reveals star trails and the Milky Way beyond — winning image of the People & Space category in the Insight Astronomy Photographer of the Year competition 2015.