Swimmers in fancy costume take part in the New Year's Day swim at Saundersfoot in Wales, Britain, January 1, 2017. (Photo by Rebecca Naden/Reuters)

An orange cat wears sunglasses and a jacket before taking part in an orange cat competition on July 02, 2023 in Bangkok, Thailand. Thailand's Cat Fanciers' Club hosted an orange cat competition during a Cat Expo at Bangkok's Central Westgate Mall. Over 70 cats were judged on fur color, health and friendliness. A one year old cat named Chuan Long, after the Chinese Kung Fu boxer, took home first prize. (Photo by Lauren DeCicca/Getty Images)

An anti-government protester, dressed as Barbie holding a fake gun, takes part in a demonstration demanding that Peruvian President Dina Boluarte call for immediate presidential elections as well as justice for those who were killed during protests earlier this year after the ouster of her predecessor, in Lima, Peru, Saturday, July 22, 2023. (Photo by Martin Mejia/AP Photo)

Showgirl Amy Findlay after the the rehearsals for Circus Vegas in Newcastle, Britain on July 27, 2023. (Photo by Lee Smith/Reuters)

Ukrainian soldiers fire with D-30 artillery at Russian positions in the direction of Klishchiivka as the Russia-Ukraine war continues in Donetsk Oblast, Ukraine on August 12, 2023. (Photo by Diego Herrera Carcedo/Anadolu Agency via Getty Images)

A view of children mannequins wrapped in purple and white barricade tape placed in front of the Cologne Cathedral, installed there by German artist Dennis Josef Meseg, called “Shattered Souls – in a Sea of Silence”, to protest against the abuse scandals in the Catholic Church in Cologne, Germany on August 3, 2023. (Photo by Wolfgang Rattay/Reuters)

A woman holds a champagne bottle during New Year's celebrations in Bucharest, Romania, Wednesday, January 1, 2014. Tens of thousands of Romanians took to the streets of the Romanian capital to join parties and watch fireworks. (Photo by Vadim Ghirda/AP Photo)

The Royal Observatory just announced its Astronomy Photographer Of The Year 2013 winners. Australian photographer Mark Gee was chosen among a thousand amateur and professional photographers around the globe to win the top title. His work is part of an exhibition of the winning photographers, which opened on Sept. 19 at the Royal Observatory Greenwich. The Royal Observatory shared with us the winners and notable mentions of the competition. Their descriptions of the prizewinners can be found below the images.