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Hey there! Old Eris is a dwarf planet located in the Kuiper Belt, beyond Neptune. It’s one of the most distant objects in our Solar System and it’s been around for billions of years. Wow! Talk about old! But what makes Old Eris so special? Well, it’s believed to be the largest object in the Kuiper Belt and its orbit is highly eccentric - meaning it takes a long time to make one full orbit around the Sun. Plus, its surface is covered with methane ice which gives it an icy-blue hue. Pretty cool, right? So if you’re looking for something out of this world, look no further than Old Eris!
How Old Is Eris? [Solved]
Eris is part of a gang of objects that hang out in the Kuiper Belt, way past Neptune. This far-off area is full of thousands of tiny icy worlds that were created billions of years ago when our solar system was just getting started. Pretty cool, huh?
Discovered in 2005: Old Eris is a dwarf planet located in the Kuiper Belt, beyond Neptune’s orbit. It was discovered in 2005 by a team of astronomers led by Mike Brown at the California Institute of Technology.
Largest Dwarf Planet: Old Eris is the largest known dwarf planet in our Solar System, with a diameter of 2,326 kilometers (1,445 miles). It is slightly larger than Pluto and has an estimated mass of 10 times that of Earth.
Orbit and Rotation: Old Eris orbits the Sun at an average distance of about 97 astronomical units (AU), taking 557 years to complete one orbit around the Sun. Its rotation period is estimated to be 25 hours and its axial tilt is unknown.
Surface Features: The surface features on Old Eris are not well-known due to its great distance from Earth; however, it appears to have a heavily cratered surface with some areas that may be covered in ice or snow due to its low temperature (-220°C).
Moons: Old Eris has two moons named Dysnomia and Kerberos which were discovered in 2005 and 2011 respectively; both moons are believed to be composed mostly of ice and rock debris left over from collisions between objects within the Kuiper Belt billions of years ago
Old Eris is a dwarf planet located in the outer solar system. It’s about two-thirds the size of Pluto and was discovered in 2005. It’s known for its highly elliptical orbit, which takes it farther away from the sun than any other known dwarf planet. Plus, it has a really long orbital period of 557 years! Pretty cool, huh?
