What is the diameter of Sedna?

Answer 1

Mass of Sedna. = (π/6) * d^3 ρ.

Mass of astronaut m = 700 /9.8 Kg.

Force or weight on Sedan's surface

= G (π/6) * d^3 ρ.*m / d ^2

= G (π/6) * d ρ.* m

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G = 6.673 x 10^ -11, d = 1.7e+6, ρ = *2100

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F = 8.91 N.

Answer 2

Sedna is the most distant object in the solar system and is about 8.3 billion miles away from the sun. It was named after a sea goddess in Inuit mythology. Sedna was first detected last March of 2004 when astronomers reported the discovery of a planetoid about 1,700 km (about 1,000 mile) in diameter.

It can also be between 1200km to 1800km.

Answer 3

Sedna is so far from the Sun that the temperature never rises above 33 kelvin (−240 °C; −400 °F).

Answer 4

Sedna has a gravity between 0.33 -> 0.50 m/s2

Answer 5

The density of Sedna is ≈2.0g/cm3