The Easter Sunday rule, as explained in our page about “Easter and other rambling holidays,” is that it is “the Sunday after the full Moon that is on or after the day of the vernal equinox,” which was March 20.
The defining full Moon comes on April 2 at about 2h by Universal Time. So Easter will be Sunday April 5.
Here is the scene for an American location, in the full-Moon night between April 1 and 2.
See the end note about enlarging illustrations. The Moon is exaggerated 4 times in size. It is shown at its apparent position for the location on Earth, displaced by parallax.
You can see that the Moon is passing just south of what we have dubbed the “anti-Sun,” the point exactly opposite to the Sun.
Last time around, on March 3, the Moon passed slightly farther north, covering the “anti-Sun,” and thus becoming totally eclipsed in Earth’s shadow.
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This weblog maintains its right to be about astronomy or anything under the sun.
ILLUSTRATIONS in these posts are made with precision but have to be inserted in another format. You may be able to enlarge them on your monitor.
One way: right-click, and choose ”View image” or ”Open image in new tab”, then enlarge. Or choose ”Copy image”, then put it on your desktop, then open it. On an iPad or phone, use the finger gesture that enlarges (spreading with two fingers, or tapping and dragging with three fingers). Other methods have been suggested, such as dragging the image to the desktop and opening it in other ways.
Sometimes I make improvements or corrections to a post after publishing it. If you click on the title, rather than on ‘Read more’, I think you are sure to see the latest version. Or, if you click ‘Refresh’ or press function key 5, you’ll see the version change to the latest.