The addition of six new spots including Dalby Observatories on the North York Moors, takes the total number to more than 50.
The initiative identifies opportunities for thousands of budding stargazers throughout the winter and is involved with some of the BBC-led events and is running several other this week.
The network includes local partnerships between astronomers, open space organisations and community groups.
Project leader Dan Hiller said: "Congratulations to all the new Dark Sky Discovery Sites. A fantastic array of other venues is hosting Stargazing Live events in January.
"Many of these places are ideal spots for regular stargazing throughout the winter and we would love to have them join the growing family of local Dark Sky Discovery Sites. Community groups, schools and environmental organisations can all nominate their best local stargazing site — our website explains how you can do this."
More details can be found here and on the Dark Sky Discovery website www.darkskydiscovery.org.uk where further events will be added throughout the winter.
For a full list of BBC Stargazing Live events, visit http://www.bbc.co.uk/programmes/b019h4g8/features/events