Celebrating the first observations of the Moon through a telescope by Thomas Harriot in 1609, this one-day event took place at Syon Park
on Sunday 26 July 2009, and featured comet-making, rocket-launching, and much much more, along with workshops and lectures on Thomas Harriot.
To find out more, visit the Telescope400 website
Images from the event are now on our Flickr page: http://www.flickr.com/groups/astronomy2009uk
Find out what people thought about Telescope400: search for #Harriot on Twitter