Came outside for smoke in late evening - I saw something illuminated move above my garden shed roof and stop - I looked at it and decided to take a picture - only had my iphone - I couldn't see much detail on the picture so went back into house to get camera - when returned it was gone.
Object was seen in direction of London City Airport - from the time I first noticed it to my seeing that it was gone is close to 3 minutes maximum.
