A preliminary analysis of the fireball track based on detailed analysis of photographs submitted to the BAA Meteor Section and collected by John Mason is shown in the attached picture. Read more
Friday nights 'meteor' sighting sparks enquiries from North East Lincolnshire residents
More than 4,000 people checked the Grimsby Telegraph's website for information after unidentified bright lights lit up the skies on Friday night. Local stargazers were baffled at about 11pm when what looked like shooting stars shot through the sky Read more
More on the 21 September 2012 fireball: why it definitely was a meteor
It would take a re-entering satellite travelling at 8 km/s (the orbital speed at decay altitudes) about 138 seconds or roughly 2.25 minutes to travel this distance. While the reported fireball durations are long, none of the reports nor videos comes even remotely close to that value. A meteoric fireball travelling at the lowest speed possible for such an object, 11.8 km/s, would take 93 seconds to travel that distance. This is still longer than almost all of the reports suggest, but clearly getting closer. If we take an estimated duration of 60 seconds, the 1100 km trajectory length results in a speed of approximately 18 km/s. Read more
Reports that the object was a meteor have been discredited by Mark Thompson, presenter of Stargazing live, who says it was in fact pieces of space debris, known as space junk. Read more
"Obviously I don't know how big but I would guess maybe a metre by a metre, the size of a tea chest" - John Davies from The Royal Observatory, Edinburgh
Spectacular meteor shower over Scotland was 'space junk' returning to Earth, say experts
Astronomers suspect a disused satellite hurtling back to Earth was responsible for the spectacular space show on Friday night.
"We're pretty sure this was a man-made object re-entering the atmosphere. Its unlikely it would have even reached Earth - and even if part of it did, it looks like it was heading out to sea" - Bob Graham, of the Association in Scotland to Research Astronomics.