My return to lunar observing after a long absence was stymied on my second night, again, by bad seeing.  Though the sky looked remarkably clear overhead, through the telescope came another story.  The image through the viewfinder writhed and twisted like an out-of-control snake.  Fine detail would appear for the briefest moment on the Moon’s surface only to be replaced by ripples of distortion.

This image of the Crater Pythagoris and Mare Frigoris (Sea of Cold) are from the far northern region of the Moon about 30-degrees from the Moon’s North Pole.

A few of the major features labelled.

The box shows the approximate area of the images above.