Neptune takes about 165 Earth years to complete one orbit around the Sun. More precisely, its orbital period is approximately 164.8 to 164.86 Earth years, which corresponds to about 60,190 Earth days
. This long orbital period is due to Neptune's great average distance from the Sun, about 30.1 astronomical units (around 4.5 billion kilometers or 2.8 billion miles)
. In summary:
- Orbital period: ~165 Earth years (about 60,190 Earth days)
- Average distance from the Sun: ~30.1 AU (4.5 billion km)
This means that a single year on Neptune is roughly 165 times longer than a year on Earth
