Photoshop Elements 15 - crop register and size reduce two images to produce mosaic and 12 images to produce time-lapse animation.

Mercury Setting at Last Light
As Mercury climbs higher in the evening sky it is setting later when the sky is darker. Here Mercury can be seen disappearing behind some Musasa trees on the summit of Transmitter Hill yesterday evening (27th) at last light. From now on it will set in complete darkness. 12-frame time-lapse animation to follow as a comment.