Early this evening, well after sunset, I popped out into the backyard for a while. Venus was clearly visible in the western sky. There was also a long, straight and tenous glow in the sky. I took a photograph, leaving the shutter open. I rested the camera on a gate. The glow is barely visible so I emphasized it a little with ‘levels’ in Photoshop Elements. The image is displayed below.
Click on the image to view the original photograph.
Perhaps it was a contrail from a long gone jet. Whatever, it looked other worldly.