A celestial event occurred in January 2025 where six planets—Mars, Jupiter, Uranus, Neptune, Venus, and Saturn—appeared aligned in Earth's evening sky.
Event Details
The alignment began January 21, 2025, and remained visible through February 21. The week of January 29 was the best for viewing, approximately 45 minutes after sunset.
Visibility Information
Four planets are naked-eye visible: Mars, Jupiter, Venus, and Saturn. However, Uranus and Neptune require optical aid—binoculars for Uranus (50x magnification) and telescopes for Neptune (150x magnification).
Scientific Note
True planetary alignment in a perfectly straight line is impossible due to varying orbital periods. Mercury completes orbits in 88 days, while Neptune requires approximately 60,190 days.
