Amounst these 5 stars is a bright blue diamond or oval shaped ufo,not sure what it is,taken from Auckland,New Zealand.

I have cropped this image till it was under the 499 pixel gate,instead of down sizing to 499,this is not the only time that I have captured this 'blue thing' and have more than one of these 'blue what evers' on another image.

Would love your honest feed back on what it could be.