Weird light in the sky U.K.

Weird light in the sky U.K.
I was driving tonight and saw a bright light:

Time: 18:15 approx

Location: Chester le street

I thought it was a plane but the light got smaller and smaller and disappeared for a few seconds then bright again. I checked flight radar but there were no planes anywhere near in the north east and though it may be a star behind clouds. When I had a proper look there were no clouds. Then I thought possible police helicopter but it was too high for that. I tried to take a video but the quality is rubbish.  My daughter saw it too and just didn’t look like anything I had seen before. 



I’m not sure how to upload the video.