Lunar Calendar
Sidereal vs Synodic Month: Why Lunar Calendars Drift
The Moon returns to the same stars every 27.32 days, but its phases take 29.53 days. That 2.2-day gap...
Beginner's Guide to Reading a Lunar Calendar
Learn how to read phase symbols, illumination percentages, and moonrise and moonset times so you can plan...
Monthly Lunar Calendar Planning Checklist for Backyard Observers
A printable monthly checklist for backyard observers: how to mark new moons, quarters, full moons, and...
