Eris is slightly larger than Pluto. So if Pluto qualified as a full-fledged planet, then Eris certainly should too. Astronomers attending the International Astronomical Union meeting in worked to settle this dilemma. In the end, we lost a planet rather than gaining one.
Namesake Namesake Originally designated UB — and nicknamed for the television warrior Xena by its discovery team — Eris is named for the ancient Greek goddess of discord and strife. Potential for Life Potential for Life The surface of Eris is extremely cold, so it seems unlikely that life could exist there. A 3D model of Eris, a dwarf planet in the Kuiper Belt.
The next full Moon is the Beaver Moon, and there will be a near-total lunar eclipse. Full Moon Guide: November - December DART team members have filled the spacecraft with fuel, and are running rehearsals as they approach launch on Nov. The solar system is encased in a bubble called the heliosphere, which separates us from the vast galaxy beyond.
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The spacecraft will continue collecting data about Mars, but engineers will stop sending commands until mid-October. Winds in the outermost "lane" of Jupiter's Great Red Spot are accelerating — a discovery made possible by Hubble. It takes years for the distant dwarf planet to make a single trip around the sun, though it rotates once every 25 hours, making the length of its day very similar to a day on Earth.
Eris' distance allowed astronomers to make precise measurements when the dwarf planet passed in front of a dim star in , in an event known as an occultation. The observations helped scientists determine that Eris' diameter is 1, miles 2, kilometers , give or take 7 miles 12 km. That makes it slightly smaller than Pluto.
When New Horizons reached Pluto, the spacecraft measured the diameter of the planet and found it to be 1, miles 2, km across, which is about two-thirds the diameter of Earth's moon.
Newer studies show that Eris likely is a spherical body. That makes Eris one of the most reflective bodies in the solar system, roughly on par with Saturn's icy moon Enceladus.
It has an average distance of 68 AU away from the Sun. Its actual distance can be checked online, as Eris is constantly tracked. Its apparent magnitude of Formation Eris is a member of a group of objects that orbit in a disc-like zone beyond the orbit of Neptune, called the Kuiper Belt. Structure, Surface and Atmosphere Eris has an estimated albedo of 0. Moons Eris has one known satellite, a moon that was discovered in , and was named Dysnomia, after the daughter of the goddess Eris.
Dysnomia Dysnomia is the second known largest moon of a dwarf planet. Life Habitability Due to extreme cold temperatures, it seems unlikely that life could exist there. Did you know? Eris is currently in the Cetus constellation and it will enter the Pisces constellation in At its furthest point from the Sun is reaches outside the Kuiper Belt, yet at its closest point it is much closer to the Sun than Pluto, when Pluto is at its furthest.
It is currently at its furthest point away from the Sun. Because of its distance any atmosphere it might have had, would have frozen and fell to the surface as snow. But as it will get closer to the Sun in about years, its icy surface will sublimate, creating a new tenuous atmosphere.
It is believed that Eris was originally located inside the Kuiper Belt, but due to gravitational interactions with Neptune, as the Solar System was forming, the dwarf planet was forced out into the scattered disc region.
Eris has a surface size similar to that of Russia. Standing on Eris would make a person feel lighter, as its gravity is 11 times weaker than that of Earth, making a person eleven times weigh less. Though its gravity is weak compared to earth, Eris has the strongest gravity out of all the dwarf planets: 0. If a person would stare into the sky from Eris, he or she would see a very sharp view of the Milky Way, and the stars, since atmosphere could not get in the way.
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