As part of the BBC's 'Stargazing LIVE' event, the Observatory is holding an open evening on 2011 Jan 7. Visitors will be given a short introductory talk, a tour of the domes, and, if it is clear, an opportunity to look through one of the telescopes. Doors will open at 16:30, and last admission will be at 21:00. The tour will last about 50 minutes. Admission is free; no booking or tickets are required, but because of the nature of the site, visitors will be asked to wait at the entrance gate (be sure to dress warmly!), and will be admitted in groups of 15. Read more