The bright streak near the centre of the image is what is known as an iridium flare in astronomy circles. You can learn more about it at www.satobs.org/iridium.html
This was the first flare that I caught on camera, which, btw, was not mine. I centred the camera on a star near which the flare was to be the brightest, Pi Canis Majoris if I remember correctly, and used a 15-second exposure. The result excited me! This flare got as bright as flares can get. (Magnitude -8, if you're familiar with astronomical parlance.)
The bright star seen at bottom right is Canopus, the second brightest star in the night sky. It can be easily seen from the southern hemisphere, but not all latitudes of the northern half can see it.