And, by studying the motion of Eris' moon, Dysnomia (which was also discovered in 2005), they estimate the dwarf planet is about 27% heavier than Pluto, which means it's denser than Pluto as well.

Eris has a moon called Dysnomia that circles the dwarf planet every 16 days. In Greek mythology, Dysnomia is the name of one of Eris’s daughters and means “anarchy.” 5.

Eris also has a small moon, which is named Dysnomia. Discovery: Oct. 21, 2003. Size: 1,444 miles in diameter (half the width of the U.S.) ... The dwarf planet was named by 11-year-old Venetia Burney.

The first important clue is that Eris and its moon, Dysnomia, always face the same way toward each other. “That happens because the big planet gets spun down by the tides that the little moon raises ...

The dwarf planet’s current name is 2012 VP113, and it is located in a “wasteland or badland of the solar system,” said astronomer Chad Trujillo, ... and has a satellite called Dysnomia.

Dysnomia, is a moon of the dwarf planet Eris. The satellite is about 60 times fainter than Eris, and its diameter is estimated to be approximately eight times smaller. Astronomers now know that ...

Under the new definition, Pluto, Eris, and its moon Dysnomia were classified as dwarf planets. Pluto is also included in the grouping of trans-Neptunian objects , which I would argue is infinitely ...

Dwarf planet Eris’ rotation is constrained by its large moon Dysnomia, named after the Greek goddess of lawlessness. Skip to main content Thank you for visiting nature.com.

Dwarf planet Eris, similar in size to its better-known cosmic cousin Pluto, has remained an enigma since being discovered in 2005 lurking in the solar system's far reaches. While Pluto was ...

Artist’s Impression of the Dwarf Planet Eris and Moon Dysnomia. ESO/L. Calçada . This artist's impression shows the distant dwarf planet Eris in the distance with its moon Dysmonia in the ...

The first important clue is that Eris and its moon, Dysnomia, always face the same way toward each other. "That happens because the big planet gets spun down by the tides that the little moon ...