the cycle · one illustration per day
phase calculated from the synodic month (29.5305882 days) with a reference new moon at 2000-01-06 18:14 UTC. approximate — good to within a few hours. for astronomy-grade precision use a proper ephemeris. a supermoon is a full moon at perigee (closest earth approach); it looks ~14% larger than a micromoon at apogee.