combined series of images taken between 00:00 and 00:04 on August 17th shows the
path of Near Earth Asteroid 2002 NY40. This asteroid is passing only 530,000 Km
from Earth and is 800 metres in diameter - if it had hit us it would have dug
a crater 10Km accross!
to view such objects through amateur instruments occur once every 50 years so
August 17th was a special day in Yorkshire - especially given that the skies were
actually clear for a change.