Astronomy Photographer of the Year is an annual astronomy photography competition and exhibition that is organised by the Royal Observatory, Greenwich (part of Royal Museums Greenwich).

The competition was launched in 2009 during the International Year of Astronomy. It has expanded significantly since this time and since 2016 the overall winner receives a prize of £10,000.

Astronomy Photographer of the Year

In 2018 the exhibition moved to the Photography Gallery at the National Maritime Museum, where the exhibition showed a 10-year retrospective of the competition's 31 winning images alongside 69 of the best winning images from the past nine years. Since then, each year's winning images have been showcased alongside the shortlisted images in the annual exhibition.

Astronomy Photographer of the Year

Categories

Entrants can submit up to 10 images in the competition, which normally runs January–March.

Astronomy Photographer of the Year

2009-2014 categories: Earth and Space - Photographs featuring the night sky or twilight sky. Our Solar System - Photographs of the Moon, the Sun, and objects in the Solar System. Deep Space - Photographs of deep-space objects inside the Milky Way galaxy and beyond. People and Space Special Prize - Photographs of the night sky that include people or elements that show the presence or influence of human beings. Young Competition - Photographs taken by entrants aged 15 or under of any astronomical subject.

Since 2015 the categories have been: Aurorae - Photographs featuring the northern and southern lights (Aurora Borealis and Aurora Australis). Galaxies - Photographs of deep-space objects beyond the Milky Way galaxy, including galaxies, galaxy clusters and stellar associations. Our Moon - Photographs of the Moon, including lunar eclipses and the occultation of stars and planets, and the Moon alongside earthly scenery. Our Sun - Photographs of the Sun, including solar eclipses and transits, and the Sun alongside earthly scenery. People and Space - Photographs of the night sky that include people or elements that show the presence or influence of human beings. Planets, Comets and Asteroids - Photographs of objects in the Solar System, including planets and their satellites, comets, asteroids and other forms of zodiacal debris. Skyscapes - Photographs of landscapes, seascapes and cityscapes in which the night sky or twilight sky is a prominent feature. Stars and Nebulae - Photographs of deep-space objects in the Milky Way galaxy, including stars, star clusters, supernova remnants, nebulae and other galactic phenomena. The Sir Patrick Moore Prize for Best Newcomer Special Prize - Photographs of any astronomical subject taken by people who have only been practicing astronomy photography for one year and have not entered the competition before. The Robotic Scope Special Prize - Photographs taken with a remotely operated robotic telescope which is publicly accessible. The Young Competition - Photographs taken by entrants aged 15 or under of any astronomical subject. Since 2020 the categories have been:

Aurorae - Photographs featuring the northern and southern lights (Aurora Borealis and Aurora Australis). Galaxies - Photographs of deep-space objects beyond the Milky Way galaxy, including galaxies, galaxy clusters and stellar associations. Our Moon - Photographs of the Moon, including lunar eclipses and the occultation of stars and planets, and the Moon alongside earthly scenery. Our Sun - Photographs of the Sun, including solar eclipses and transits, and the Sun alongside earthly scenery. People and Space - Photographs of the night sky that include people or elements that show the presence or influence of human beings. Planets, Comets and Asteroids - Photographs of objects in the Solar System, including planets and their satellites, comets, asteroids and other forms of zodiacal debris. Skyscapes - Photographs of landscapes, seascapes and cityscapes in which the night sky or twilight sky is a prominent feature. Star trails and images of noctilucent and nacreous clouds, halos, meteors and other upper atmospheric phenomena may also be entered into this category. Stars and Nebulae - Photographs of deep-space objects in the Milky Way galaxy, including stars, star clusters, supernova remnants, nebulae and other galactic phenomena. The Manju Mehrotra Family Trust Prize for Best Newcomer Special Prize - Photographs of any astronomical subject taken by people who have only been practicing astronomy photography for one year and have not entered the competition before. The Annie Maunder Prize for Image Innovation Special Prize - For images processed using pre-existing open source data. The Young Competition - Photographs taken by entrants aged 15 or under of any astronomical subject.