This is a 30 minute exposure with the 18-200mmVR lens attached and the lens cap on.

The VR was acive and that may play a role in the deep red light pollution that exists on the right and center of the frame.

Amp glow (lighter magenta color) can be seen in the upper left corner

The camera was placed in the refrigerator 30 minutes prior to this thirty minute exposure. There's much less thermal noise exhibited by the sensor.