There are no planets further than Eris, but there are Dwarf Planets and TNO's (Trans-Neptunian Objects.) Some of which are: Pluto, Eris, Haumea, Makemake, Sedna, Orcus, Quaoar, and Varuna.
Among our sun's planets, Neptune enjoys that distinction. If we include dwarf planets, then Eris makes the longest journey (so far). We will likely discover icy bodies as big as Eris even further away.
These are currently defiend as dwarf planets: Ceres Pluto Haumea Makemake Eris There are some other ateroids that are currently considered candidates for dwarf planet status, however further study is required to confirm.
Pluto, Eris, Ceres, Haumea and Makemake are the dwarf planets found so far. As you can see there are 5 now, not just 4.
Planet: Neptune at 30 AUDwarf Planet: Eris at 67.67 AUThe farthest planet from the sun is Neptune. The farthest dwarf planet from the sun is Pluto. The planet, Pluto is no longer considered a planet because of its size.
Nothing 'happened' to it. It is just that Eris was discovered in 2005. Eris is 27% larger than Pluto, so they reclassified Pluto as a "dwarf planet." So Pluto, Eris, and the asteroid Ceres are the dwarf planets in our solar system that we know of so far.
Among our sun's planets, Neptune enjoys that distinction. If we include dwarf planets, then Eris makes the longest journey (so far). We will likely discover icy bodies as big as Eris even further away.
Pluto, Ceres, Eris, Sedna and Makemake are the five "dwarf planets" designated so far. Ceres, Pluto, Haumea, Makemake and Eris are currently the five bodies classed as dwarf planets, but there are further candidates that could be classed as dwarf planets once more information on their shape has been uncovered.
These are currently defiend as dwarf planets: Ceres Pluto Haumea Makemake Eris There are some other ateroids that are currently considered candidates for dwarf planet status, however further study is required to confirm.
Pluto is still in the solar system but it has been reclassified as a dwarf planet, so there are eight true planets, then a few dwarf planets with Eris and Pluto as the two largest. They are called dwarf planets because they are not big enough to have hoovered up the debris from their orbits. Eris, discovered in 2005, is further out than Pluto but has an even more unusual orbit, with a semimajor axis of 67.7 astronomical units, eccentricity of 0.44 and inclined 44 degrees to the ecliptic. It has a moon called Dysnomia.
Planets closer to the sun will receive more of the suns energy per unit of area on their surface than planets further from the sun, so will generally be hotter.
Pluto, Eris, Ceres, Haumea and Makemake are the dwarf planets found so far. As you can see there are 5 now, not just 4.
Pluto, Eris, Ceres, Haumea and Makemake are the dwarf planets found so far. As you can see there are 5 now, not just 4.
Planet: Neptune at 30 AUDwarf Planet: Eris at 67.67 AUThe farthest planet from the sun is Neptune. The farthest dwarf planet from the sun is Pluto. The planet, Pluto is no longer considered a planet because of its size.
Nothing 'happened' to it. It is just that Eris was discovered in 2005. Eris is 27% larger than Pluto, so they reclassified Pluto as a "dwarf planet." So Pluto, Eris, and the asteroid Ceres are the dwarf planets in our solar system that we know of so far.
The currently recognized dwarf planets are: Ceres, Pluto, Haumea, Makemake, and Eris. Another dozen or so objects are strong candidates but have not yet been confirmed as dwarf planets.
Its orbital period is 4.60 years; since that is not an exact multiple of the Earth year, the closest approach is not at the same date every year. You can check astronomical sites for "opposition of Ceres"; the closest approach is usually close to the opposition. For example, in 2016, Ceres was in opposition on 21 October.
Eris is a dwarf planet, because it is sufficiently massive that it's formed into a spheroid due to its own gravity, but it has not cleared its orbital path, as it would need to in order to be considered a planet. Eris is the largest known object in the Kuiper Belt.