Blue orbit is the Earth, while white marks orbit of the asteroid 4431 Poseidon.

Blue orbit is the Earth, while white marks orbit of the asteroid 4431 Poseidon.

4341 Poseidon (1987 KF)

Composition: Platinum, and nickel-iron

Valuation: €33.61 Trillion

Δv (km/s) Delta-velocity: 8.627

Upcoming Approaches to Earth: Dec 12, 2021: 0.332 AU Nov 13, 2026: 0.237 AU. Oct 27, 2031: 0.202 AU.

Poseidon’s 2031 approach of 0.202 Astronomical Units is equivalent to 30,218,770 kilometers.

Closest approach of Earth from the Moon is 363104 kilometers. Closest distance of the Earth to Mars is 54,600,000 km.

1968, NASA’s Apollo 8, return mission to the Moon, lasted 6 days, 3 hours, and 42 seconds, crying 3 crew, with a landing mass of 4,979 kilograms.

1972, Apollo 17, NASA’s last moon mission of the 20th century, returned to Earth. The Apollo space missions had returned a total of 382 kg of extraterrestrial rock and soil back to Earth.

Asteroid date source: Asterank; based on multiple scientific sources, with details on orbits and basic physical parameters sourced from the Minor Planet Center and NASA JPL.

2017 “Goldman Sachs: space-mining for platinum is 'more realistic than perceived…

Prospecting probes can likely be built for tens of millions of dollars each and Caltech has suggested an asteroid-grabbing spacecraft could cost $2.6bn,’”