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.
In 1884, a delegation of international representatives convened in Washington, D.C. to recommend that Earth’s prime meridian marking zero degrees longitude should pass through the Airy Transit Circle (ATC) at the Royal Observatory in Greenwich, England. But according to the GPS receivers of surveyors and smartphones of London tourists today, why does the line of zero longitude run 102 metres east of the ATC?
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.
© 2019 Pole Star Publications Limited
