crop picture is very easy to understand, once you watch a small gif
movie prepared for the date of June 21, 2020. It shows how a round
eclipse-shadow of our Moon would pass over the Sun-facing surface of our
Earth from left to right, while following a curved
clockwise path, just like for a broad, curved comet-shape
which was drawn in crops as part of a larger field image, near Berwick
Bassett on the same date.