odd streak near M13...?

[eyepod]

Hi All, I have been out tonight having a practice with my new imaging setup  and i thought i would try and image M13 I got 20 subs which i will play with later but i noticed this strange streak on all of them anyone know what this is... forgive the light blue colour as its a full moon tonight : ) Is it a faint DSO ? i can't find any mention of it in star charts etc

regards

Jason

[eyepod]

Mmm its not a strange new object.... i think its stray light from somewhere as its moved on the other frames i have taken. I have checked both mirrors on the scope and the camera is clean maybe stray moonlight playing tricks on me..?