What is the second-largest planet in our solar system?

The second-largest planet in our solar system is Saturn. This gas giant has an equatorial diameter of about 120,536 kilometers (74,898 miles), making it significantly smaller than Jupiter, which holds the title of the largest planet with a diameter of approximately 139,822 kilometers (86,881 miles).

Saturn is well-known for its prominent ring system, which consists of ice and rock particles, and this distinctive feature further emphasizes its unique status among the planets. Its composition is primarily hydrogen and helium, which is typical of gas giants, and it has a lower overall density than water, indicating that it is mostly gaseous.

In contrast, Earth, with a diameter of about 12,742 kilometers (7,918 miles), and Neptune, at about 49,244 kilometers (30,598 miles), are much smaller than both Saturn and Jupiter, which establishes Saturn firmly in the position of the second-largest planet in the solar system.