Eris

Cosma / Communication / Knowledge / Realm / Physical / Universe / Solar System / Scattered Disc / Eris
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Eris (minor-planet designation 136199 Eris) is the most massive and second-largest known dwarf planet in the Solar System. It is a Trans-Neptunian object (TNO) in the scattered disk and has a high-eccentricity orbit. Eris was discovered in January 2005 by a Palomar Observatory-based team led by Mike Brown and verified later that year. In September 2006, it was named after the Greco–Roman goddess of strife and discord. Eris is the ninth-most massive known object orbiting the Sun and the sixteenth-most massive overall in the Solar System (counting moons). It is also the largest object that has not been visited by a spacecraft. Eris has been measured at 2,326 ± 12 kilometers (1,445 ± 7 mi) in diameter; its mass is 0.28% that of the Earth and 27% greater than that of Pluto, although Pluto is slightly larger by volume. Eris has one known moon, Dysnomia. — Wikipedia

Eris (Encyclopædia Britannica)

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Inspiration

Standing on Eris The Most Massive Dwarf Planet (Dreksler Astral, YouTube Video)

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Innovation

Science

Eris (NASA Science)

Eris (Mike Brown’s Planets)

Eris (International Astronomical Union)

Eris (Wolfram Alpha)

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Preservation

History

Eris: The First Dwarf Planet (Nola Taylor Tillman, Space.com)

Library

Subject: Eris (Library Thing)

Subject: Eris (WorldCat)

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Participation

Education

Eris – Level 1 (StarChild, Goddard Space Flight Center, NASA)
Eris – Level 2 (StarChild, Goddard Space Flight Center, NASA)

Small Solar System Bodies Learning Resources (National Air and Space Museum)
Dwarf Planets Learning Resources (National Air and Space Museum)

MERLOT: Multimedia Educational Resource for Learning and Online Teaching
OER Commons: Open Educational Resources

Community

Organization

Minor Planet Center (International Astronomical Union)
Asteroids & Remote Planets Section (British Astronomical Association)

News

Eris (Nova Research Highlights, American Astronomical Society)
Eris (EurekaAlert, AAAS)
Eris (Astronomy Magazine)
Eris (JSTOR)
Eris (Science Daily)
Eris (Phys.org)

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