The solar mass (M?) is our standard unit of mass for estimating the mass of massive bodies near to or greater in mass to our solar system's Sun. A solar mass is equal to approximately 1.99 × 1030 kilograms.
A solar mass is used to represent the estimated mass of very large bodies or objects such as stars and galaxies.
A solar mass is equal to the mass of our solar system's Sun, which is about two nonillion kilograms.
M? = 1.98855×1030 kg
The Mass of the Sun is a base unit. It is equal to: