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The Eris Quiz

Can you answer these questions about the second-largest known dwarf planet in the Solar System?
Quiz by CFeng
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Last updated: August 21, 2020
First submittedAugust 21, 2020
Times taken16
Average score35.7%
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Hint
Answer
Eris is named after the Greek goddess of ________ and ________
Discord
Strife
The year Eris was discovered
2005
Eris was discovered by a team based at this observatory in southern California
Palomar Observatory
The team of astronomers that discovered Eris was led by this astronomer and professor at Caltech
Mike Brown
Eris was originally nicknamed this, after a warrior princess in a TV show
Xena
Only known moon, named after one of the mythological daughters of the goddess Eris
Dysnomia
Due to its very eccentric orbit, Eris is not classified as a Kuiper Belt Object (KBO) like Pluto, but a _________
Scattered Disk Object (SDO)
Eris has a very high ________, a measure of the diffuse reflection of solar radiation
Albedo
Spectroscopic observations revealed that Eris is covered by this chemical compound in it's solid form
Methane
While Pluto appears reddish, Eris appears to be this color
White
Eris was originally thought to be larger than Pluto, but measurements taken by this space probe proved that it was actually slightly smaller
New Horizons
With a diameter of around 2326 km, Eris is about 2/3 the size of this planetary satellite
Earth's Moon
Eris has a surface area of about 17 million square km, which is around the size of this country
Russia
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