Hi Stu,
Many thanks for the welcome. I live in Selby, UK. I was travelling North on the A1 towards the Harrogate junction when I saw the 'event' happen. I wasn't expecting it to be a supernova or anything deep space as you rightly advise, it was just pretty exciting to witness it.
The light observed appeared stationary around the location of HD 99489 however, I was not stationary so can't 100% confirm that. The light started looking like a normal star, in the sky to the naked eye, then started to brighten and intensify to the point it looked as bright and as large as Jupiter was to the naked eye last night. Then it faded very quickly to a small dull dot for a longer time than it was bright and then disappeared, I couldn't see it again after that. This all happened over a span of about 5-6 seconds. Seemed like I was frozen in the moment at the time tho. It was unexpected as I was just looking at my favourite constellation and there was this anomaly happening that I could see. It reinforced why I love looking up.
Maybe it was just the flash on the google maps satellites camera....🤔
Cheers, Mark