Found it. I think. It's the only fuzzy object in the area. Pretty big through the binocs. Using a 12x50 zoom at wide angle. Seems a little on top of the line you drew. Is that correct?
Oops! My mistake. I don't have zoom, so just using the 12. (272 feet @ 1000 yards). Will try to take a picture with my Z1 digital.
Hard to say what's a straight line on a sphere. :-) I gave the best estimate I could using a ruler and a star atlas.