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.

Opposition protesters take to the streets of Moscow. Mass meeting in Bolotnaya Square on December 10, 2011 in Moscow, Russia.

Photo by: Stas Sedov and Dmitry Chistoprudov; Source: AirPano

Men and Women dressed as zombies walk through Hyde Park on February 25, 2012 in Sydney, Australia. The annual Zombie Walk raises money for the Brain Foundation and this year teamed up with FX channel in promotion of “The Walking Dead” series premiering in Australia this weekend. (Photo by Brendon Thorne/Getty Images)

“Birmingham is a city and metropolitan borough in the West Midlands of England. It is the most populous British city outside the capital London with 1,074,300 residents (2011 census), an increase of 96,000 over the previous decade. The city lies within the West Midlands conurbation, the third most populous urban area in the United Kingdom with a population of 2,440,986 (2011 census) of which the Birmingham built-up area was 1,085,810. Its metropolitan area is the United Kingdom's second most populous with 3,683,000 residents”. – Wikipedia. (Photo by Adrian Saker)

Audrey Tautou poses at a photo call during The 66th Annual Cannes Film Festival at at Palais des Festivals on May 14, 2013 in Cannes, France. (Photo by Valery Hache/AFP Photo)

West Bromwich Albion's Saido Berahino (front) is challenged by Manchester City's Fernandinho during their English Premier League soccer match at The Hawthorns in West Bromwich, central England December 4, 2013. (Photo by Eddie Keogh/Reuters)