My brother and I saw this blue streak of light last night while stargazing. Here's some info what we know

>Its not a comet, nothing flew by to create the streak
>It lasted about 3 hours
>Didn't move along with the sky
>Was north east of our position (North Dublin, Ireland)
>No reports of it in any news of any cool space things happening that night (As far as i could tell)

I didn't know where to post this so i posted here and Reddit to see if i can get answers. Anyone know what I'm looking at?