The Moon is passing in front of the Sun in the upper part of the photo. The "second Moon" in the lower part of the photo is a rounded mountain. The photo is taken at midnight outside Tromsø in Northern Norway.
Composite of the great outburst of Comet 17P Holmes
OBS: The photo is a composite where a new photo, showing the development of the comet's outburst, has been inserted for the time period between its explosion on 24 October 2007 - 05 December 2007 when the comet had grown larger than the full Moon. A photo of the moon has been inserted for scale-comparison.