Feint star tracks in the western sky, 7.30pm 14 March 2013 - 1

If the three star tracks are not clear in that full frame image, then the following cropped image may make them more obvious -

Feint star tracks in the western sky, 7.30pm 14 March 2013 - cropped image

Finally, here is the full image again, this time with all eight visible star tracks highlighted. I may try to match the pattern with online star charts that show what was low in the western sky at the time this photograph was taken -

Feint star tracks in the western sky, 7.30pm 14 March 2013 - tracks enhanced