As autumn paints the leaves, the universe is putting on its own seasonal spectacular. October features an action-packed lineup of meteor showers and celestial showcases. All eight planets are visible at some point in October Mercury is visible just before sunset for several days in October. Stellarium Every planet in the solar system is easily seen at some point this month, with Mercury being the most difficult. That’s not unusual, thanks to its proximity to the sun. Here’s a quick rundown on the best times to view each planet in October
