The Tycho Brahe Planetarium, Copenhagen, Denmark, Scandinavia, Europe

The Full Moon rising on December 22, 2018, the day after the winter solstice, in a perfectly clear sky and over the distant horizon to the northeast over the snow-covered prairie. Some cows are grazing at left! The top edge of the Moon has a green rim and the bottom edge a red rim, from atmospheric refraction. But it made for a Christmas-coloured Moon ornament on the horizon! The dark lunar mare and even the bright rays splashing from Tycho at bottom are visible.

A mosaic of the 11-day-old gibbous Moon, on March 17, 2019, showing the full disk and extent of incredible detail along the terminator, the dividing line between the day and night sides of the Moon where the Sun is rising as seen from the surface of the Moon.

The 13.7-day-old Moon (a day before Full) with the south polar region tipped toward us in a favourable libration for viewing the southern regions and features. This was April 6, 2020. The large crater, Bailly, is on the southern limb, better seen here than at most similar phases, due to the favourable southern libration.

The 13.7-day-old Moon (a day before Full) with the south polar region tipped toward us in a favourable libration for viewing the southern regions and features. This was April 6, 2020. The large crater, Bailly, is on the southern limb, better seen here than at most similar phases, due to the favourable southern libration.