If you live anywhere in the contiguous U.S. or Canada, and clear skies are forecast for early Sunday morning, July 20, then be sure to step outside after midnight and before the first light of dawn. Look low in the east-northeast sky for a slender crescent moon just four days before new phase and 23% illuminated, gracefully approaching the Pleiades star cluster. This will mark the third and final lunar occultation of the Pleiades in 2025, promising a very beautiful scene in steadily held binoculars or a small telescope.
Earlier this year, there were two other moon-Pleiades encounters. On the evening of January 9th, an 82%waxing gibbous moon temporarily hid the Pleiades for parts of the U.S., Canada and Central America and then during the overnight hours of February 5-6, a 61% waxing gibbous moon passed in front of the cluster. If you caught one, or both of the first two events (or if you didn't), make a note on your calendar to watch this final moon-Pleiades rendezvous of the year.
