Our Planets Found: Neptune

When found:
September 23, 1846.

By who:
Johann Galle, based on predictions by Urbain Le Verrier.

Description:
Neptune is the eighth planet from the Sun, an ice giant with strong winds, a dynamic atmosphere, dark spots, and 16 known moons, appearing deep blue due to methane.

Distance from Earth:
Closest distance: approximately 2.7 billion miles.

Length of Year & Day:
Year: 59,800 Earth days (about 165 years).
Day: 16.1 hours.

Interesting fact:
Neptune has the strongest winds in the solar system, reaching speeds of over 1,200 miles per hour.

Like its Finder:
Like Urbain Le Verrier who predicted its existence through mathematical calculations without seeing it, Neptune was "discovered" on paper before being observed, showcasing the power of intellectual foresight.