The Diamond Moon and Other Astronomical Events To See in September 2026

On September 2 at 00:17 UTC, Venus passes within 1.5° of Spica, making it easily visible. The waning Moon lies within ~1° of the Pleiades on September 3 and September 30, creating a “diamond-studied” view. The Epsilon Perseids peak September 9-10 with up to eight meteors per hour. Venus reaches magnitude –4.8 on September 22, and the Sun crosses the celestial equator at the September 23 equinox.