A Lyrid fireball (top right) managing to shine its way through the approaching dawn. I didn't see it live, but it must have been a bright flash to achieve this!
For reference, the brightest star visible, at the top center, is Altair, at magnitude 0.75. The small Delphinus "diamond" appears slightly higher a bit left of Altair,
and towards the horizon right of the middle you can see Saggitarius a.k.a. the Teapot.

Please see here for a timelapse movie of the Lyrids 2015 photo series:
https://vimeo.com/126699070