October Celestial Events Calendar: What’s Up in the Sky This Month Event dates are listed in GMT (Greenwich Mean Time). For your location, they may differ due to different time zones. To find out the exact time and date of an event in your city, use the Sky Tonight app. - October 2: Ceres (mag 7.6) at opposition, Mercury (mag -0.5) near Spica (mag 1); - October 5: October Camelopardalids’ peak (ZHR=5); - October 6: Saturn (mag 0.6), and Neptune (mag 7.8) near Moon; - October 7: Supermoon 🌟; - October 8: C/2025 K1 (ATLAS) passes perihelion 🌟; Draconids’ peak (ZHR=5); - October 10: Moon near Aldebaran (mag 0.8); lunar occultation of the Pleiades (mag 1.6); Uranus (mag 5.6) near Moon; - October 11: Delta Aurigids’ peak (ZHR=2); Jupiter (mag -2.2) near Pollux (mag 1.2); - October 13: Southern Taurids’ early activity (ZHR=5); Jupiter (mag -2.2) near Moon; Pollux (mag 1.2) near Moon; Last Quarter Moon; - October 14: Moon near the Beehive Cluster (mag 3.1); - October 16: Lunar occultation of Regulus (mag 1.4); - October 18: Epsilon Geminids’ peak (ZHR=3); - October 19: C/2025 R2 SWAN passes perigee 🌟; Mercury (mag -0.2) near Mars (mag 1.4); Venus (mag -3.9) near Moon; - October 21: Orionids’ peak (ZHR=20) 🌟; New Moon; C/2025 A6 (Lemmon) passes perigee 🌟; - October 23: Mercury (mag -0.2) and Mars (mag 1.4) near Moon; - October 24: Leonis Minorids’ peak (ZHR=2); lunar occultation of Antares (mag 1.0); - October 29: Comet 3I/ATLAS passes perihelion 🌟; First Quarter Moon; Mercury (mag −0.1) at greatest eastern elongation (≈ 24° from the Sun) 🌟.