main fireball with trail of flames behind dropping off large and slow Alfreton UKwatching tv and saw very bright flash of light out of window thought helicopter but very bright and huge with flames falling off it- very large went right to left stayed in view for fair time with flames continuing to fall off then went over house so lost sight- was quite high but never seen anything else like it could be plane on fire? but no noise and going not as fast as a plane -not sure what t was but big and main fireball with flames coming off in big fireball sparks dropping downwards- looked like a flaming comet ?