They’re not that rare, apparently
Nor are they blue, apparently.
There are two definitions of blue moon: “A seasonal Blue Moon is the third Full Moon of an astronomical season that has four Full Moons. A monthly Blue Moon is the second Full Moon in a calendar month with two Full Moons.”
To have a monthly blue moon, the first one has to occur at the very beginning of the month, because the whole moon cycle takes 29.5 days.
This post was longer, but my server burped and lost it. We’re having…issues.
May 28, 2026 — 3:16 pm
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