Asteroid belt - Wikipedia notes an estimated mass of about (4.7 to 5.4)*10^(-4) Earth masses. Kuiper belt - Wikipedia notes an estimated mass of about 20 to 200 times the asteroid belt's mass, or 0.01 to 0.1 Earth masses. read more
Asteroid belt - Wikipedia notes an estimated mass of about (4.7 to 5.4)*10^(-4) Earth masses. Kuiper belt - Wikipedia notes an estimated mass of about 20 to 200 times the asteroid belt’s mass, or 0.01 to 0.1 Earth masses. read more
Based on the fact that two members (Pluto and Eris) are in the 1-2 * 10 22 kg range, perhaps the mass is around 10 23 kg. read more
Astronomers are now hunting in the Kuiper Belt for a so-called"Planet Nine," a hypothetical world in the Kuiper Belt, after evidence of its existence was unveiled on Jan. 20, 2016. It is thought to be about 10 times the mass of Earth and 5,000 times the mass of Pluto. read more