Rare Meteor Shower, Auroras & Planetary Spectacles: Skywatch Alert (Sept 17–18, 2025)
A G3 geomagnetic storm on Sept 14–15 triggered auroras as far south as Colorado. The Chi Cygnids meteor shower peaked Sept 13–15, with a few meteors still possible. A crescent Moon, Venus, and Regulus will align in the pre-dawn sky Sept 19. Newly discovered comet C/2025 R2 SWAN brightened to magnitude 6 near Spica as of Sept 16.