What is the largest object in our solar system?

The largest object in the solar system is the sun. The sun has a mass of 1.989 x 10^30 kilograms, which is 99 percent of all the mass in the solar system.

The sun also has the largest volume of any object in the solar system. It has a volume of 1.4 x 10^27 cubic meters, which is large enough to fit 1.3 million Earths inside. The largest object in the universe is a cluster of quasars that span 4 billion light-years across. One light-year is the distance light travels in one year. Light travels 9.5 trillion kilometers in one year.