Sedna has no moons.
It appears that there is no atmosphere on Sedna.
smaller then the moon and pluto.
No it does not have moons or rings
It's very unlikely.
Not "a" Sedna; just "Sedna". Sedna is the Inuit goddess of the sea. Also, a dwarf planet named after this goddess.
Sedna
Sedna has no moons.
Pluto is a dwarf planet in our solar system located in the Kuiper Belt, while Sedna is a trans-Neptunian object with an extremely elongated orbit that takes it far beyond the Kuiper Belt. Pluto is larger and has been visited by a spacecraft (New Horizons), whereas Sedna remains largely unexplored.
No. Sedna is currently classified as a planetoid.
Sedna was discovered on November 14, 2003. It is a large planetoid located in the outer reaches of the Solar System.
Sedna likely has a rocky core surrounded by a layer of water and ammonia compounds, followed by an outer layer of water ice. The exact composition and structure of its interior layers are still uncertain due to limited observational data.
There is not a way to tell how many km are from the sun to Sedna. It is a long distence from the sun to Sedna.
It appears that there is no atmosphere on Sedna.
Sedna is a small DWARF planet made of ice and rock.
Sedna is not a moon of Saturn. It is a dwarf planet that is located in the outer parts of the Solar System. Sedna was discovered in 2003.
No. Sedna orbits the sun.