What is the largest satellite in the solar system and what is the moon?

The largest satellite in the solar system is Triton and the moon is the fifth largest satellite in the solar system.

Triton is Neptune's largest natural satellite and the first Neptune satellite to be discovered.

The moon is the fifth largest satellite in the solar system, with an average radius of about 1737. 10 km, equivalent to 0.273 times that of radius of the earth. The mass is close to 7.342× 1022 kg, which is 0.0 123 times that of the earth. The surface of the moon is covered with craters formed by the impact of small objects. The average distance between the moon and the earth is about 384,400 kilometers, which is about 30 times the diameter of the earth.

Extended data:

The moon itself does not shine, but reflects sunlight. The brightness of the moon varies with the angular distance between the sun and the moon and the distance between the earth and the moon. The brightness at the full moon is more than ten times higher than that at the top and bottom chords.

The average brightness of the moon is 1/465000 of the brightness of the sun, and the brightness varies from 1/630000 to 1/375000. The average brightness at the full moon is-12.7, etc. Its average illumination to the earth is 0.22 lux, which is equivalent to the illumination of 100 watt electric lamp at a distance of 2 1 meter.

The surface of the moon is not a good reflector, and its average albedo is only 9%, and the other 9 1% is absorbed by the moon. The albedo of Guangdong Sea is even lower, about 7%. The albedo of the lunar highlands and craters is 17%, and it seems that the mountains are brighter than the moon sea.

Baidu Encyclopedia-Moon

Baidu encyclopedia -Triton