Dysnomia (formally (136199) Eris I Dysnomia) is the only known moon of the dwarf planet Eris and is the second-largest known moon of a dwarf planet, after Pluto I Charon. It was discovered in September 2005 by Mike Brown and the Laser Guide Star Adaptive Optics (LGSAO) team at the W. M. Keck Observatory .

2025年1月22日 · Eris’s moon is named Dysnomia, the demon goddess of lawlessness and the daughter of Eris. This is fitting since the discovery of Eris led to the demotion of Pluto from planet to dwarf planet amidst continuing debate in the science community and the public.

Dysnomia is currently the only known moon of the solar system's most massive dwarf planet Eris. Of all the known minor planets in the solar system only Pluto’s moon Charon has been confirmed as being larger.

2025年1月31日 · A tiny moon, named Dysnomia after the mythological Eris’ daughter and the goddess of lawlessness, was discovered in September 2005 by Brown’s team at Keck Observatory on Mauna Kea in Hawaii ...

2015年7月28日 · But in addition to being a condition that affects the memory (where people have a hard time remembering words and names), it is also the only known moon of the distant dwarf planet Eris.

all about the new tenth planet's moon Dysnomia, the moon of Eris On September 10th 2005, astronomers at the Keck Observatory on Mauna Kea took a look at Eris with a new instrument that allows them to see details as precise as those seen from the Hubble Space Telescope.

2023年11月20日 · Eris’s sole known moon, Dysnomia, doesn’t quite compare size-wise. It’s about half the size of Charon, which is about half the size of Pluto. But Dysnomia’s size is large enough to exert a...

2015年7月29日 · But in addition to being a condition that affects the memory (where people have a hard time remembering words and names), it is also the only known moon of the distant dwarf planet Eris.

2024年11月3日 · Dysnomia (formally (136199) Eris I Dysnomia) is the only known moon of the dwarf planet Eris and is the second-largest known moon of a dwarf planet, after Pluto I Charon. It was discovered in September 2005 by Mike Brown and the Laser Guide Star Adaptive Optics (LGSAO) team at the W. M. Keck Observatory .

2024年10月20日 · Dysnomia is the moons of Eris, a Kuiper Belt Object at the edge of the Solar System. Our only picture of Dysnomia is a long-range shot. We have no space probes going out in that general direction.