Walking in the evening up along the limestone cliffs, and the moon is almost full, but not quite—about two days to go. It therefore rises a bit before sunset, so Fin and I see it up above the eastern horizon, grey and weighty. “Is that a super moon?” he asks. I contemplate what a super moon actually is; it is nothing if not a perigee moon—the closest it will get to Earth for the month. It does look big. I later consult a calendar and see that each month’s perigee throughout this year is around 356,000 to 369,000km from the Earth—except for this month’s, which is 306,109km, give or take a metre.