A shortlist has been drawn up from more than 2500 entries from amateur and professional photographers from around the world.
The shortlist includes Rob Oliver’s composite shot of star trails at Giant’s Causeway in Northern Ireland, Paul Williams’ image of the aurora borealis taken from a Transatlantic flight, and Mark Hanson’s starscape photograph taken from New Mexico.
The competition, which is run by the Royal Observatory Greenwich in association with BBC Sky at Night Magazine, is now in its sixth year.
The winners of the competition’s four categories and three special prizes will be announced on 17 September and an exhibition of the winning images opens the following day at the Royal Observatory in London.
2014 Astronomy Photographer of the Year is at Royal Observatory Greenwich, London SE10, from 18 September-February 2015.