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What is the difference between Pluto and sedna?
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.
What is sedna and how can be the scientist prove that sedna is a new planet or just the moon of Pluto?
Sedna is a dwarf planet. It is to far away to be one of plutos moons and is proved to orbit the sun
Is Pluto a planet I need a yes side and a no side to this and info must be accurate.?
Pluto is not a planet. It is considered to be a Dwarf planet like Ceres, Eris, and Sedna.
What is dwarf planet sedna symbol?
The dwarf planet candidate Sedna (90377 Sedna) has no assigned symbol, and only Pluto and Ceres do.(see related article and lists)
What is a trans-neptunian?
It is any natural body past the orbit of Neptune. (e.g. Pluto, Eris, Sedna)
Why is the planet Sedna called the planet Sedna?
The planet Sedna is not actually a planet, just a small lump of ice and rock. In fact Pluto, the ninth planet in our solar system, has just been downgraded and is no longer considered a planet. Because of Sedna's frigid temperatures, the team who discovered the object named it Sedna, after the Inuit goddess of the sea from whom all sea creatures were created
Is sedna smaller than earth?
Sedna is thought to be less than 1600 km across, which would make it very much smaller than the Earth. We do not have really good dimensions yet.
Which planet would take longer to travel around the sun?
This depends on whether you count Pluto as a planet or not. If you don't, then Neptune has the longest orbit period (nearly 165 Earth years). If you do, then Pluto has a orbit period of 248.1 years. If you count Pluto, you might also count Sedna which takes 12,050 years. Sedna is 2/3 the size of Pluto and it's 960 times as far from the Sun as the Earth.
Which is further sedna or heliosphere?
The heliosphere starts right here (or, you might say, at the Sun). Sedna is much further out. However, the heliosphere extends far out beyond Pluto. So the outer boundary of the heliosphere can be beyond Sedna. Sedna has an orbit that is very "eccentric" (highly elliptical). It's distance from the Sun varies greatly as it orbits. So, whether Sedna is inside or outside of the heliosphere changes with time.
How is Pluto more like Quaoar and Sedna than it is like Neptune?
Pluto, Sedna, and Quaoar are all solid objects with icy surfaces and are small when compared to the planets of the solar system. Saturn is a giant planet primarily composed of hydrogen and helium. It does not have a solid surface.
Does sedna have moons?
Yes, there is a celestial object called Sedna (90377 Sedna), which is a dwarf planet candidate orbiting far beyond Neptune and Pluto. Its closest approach to the Sun is about 1.5 times the maximum for Pluto, with an extreme elliptical orbit varying from 76 AU to 975 AU.As the farthest identified object orbiting the Sun, Sedna takes about 12,000 Earth years to complete one orbit. It will reach its next closest approach to the Sun in the year 2075. Only the dwarf planet Eris is current farther from the Sun.Its size is estimated at approximately three-quarters the size of Pluto, or about 1,000 miles (1200-1600 km) in diameter.(For size comparison with Earth, Moon and Pluto, please see the link below)More on SednaSedna rotates very slowly. It takes at least 20 days to complete a rotation, maybe as long as 50 days. The gravitational pull of a moon would be the best explanation for this slow rotation. Almost all other minor bodies in the solar system rotate in a matter of hours. Pluto has a six-day rotation because it has a satellite, Charon. But Sedna has no moon.
Is Pluto the only dwarf planet you know of?
There are several other dwarf planets in addition to Pluto. These include Eris, Sedna, Quaoar, Orcus, Makemake, Haumea, and the large asteroid Ceres.
