The winning images of the Astronomy Photographer of the Year 15 competition will be announced during a live online ceremony on 14 September 2023, beginning at 18:30 BST (17:30 UTC).
The ceremony will be available to watch online for free, via the Royal Observatory Greenwich's YouTube channel.
Astronomy Photographer of the Year is the world's biggest astrophotography competition and is hosted by the Royal Observatory Greenwich.
This year’s competition saw judges wowed by over 4,000 entries from 64 countries.
Images captured and submitted to this year's competition included skyscapes, the Sun and the Moon, comets and asteroids, aurorae and deep-sky objects like galaxies and nebulae.
You can see some of the top images judges received this year by checking out the Astronomy Photographer of the Year 2023 shortlist.
This year's ceremony will be presented by Royal Observatory astronomer Dr Ed Bloomer and science journalist Melissa Brobby.
Scroll down to watch Astronomy Photographer of the Year 2023 awards via the Royal Observatory's live stream below.
And keep up with news and goings-on before the event by following the #APY15 hashtag on social media.
You can see all the top entries from this year’s competition in an exhibition at the National Maritime Museum in London, opening 16 September 2023.
How to watch Astronomy Photographer of the Year 15
The 2023 awards ceremony will be broadcast live on 14 September and can be viewed via the YouTube livestream below.
If you're unable to watch the ceremony, you can keep track of all the winning images as they're announced on the night by following BBC Sky at Night Magazine's Facebook or Twitter accounts.
Check the Royal Museum Greenwich's Facebook and Twitter accounts for more info.
