Arwen Colles is an area of small hills on Titan, the largest

moon The Moon is Earth's only natural satellite. It is the fifth largest satellite in the Solar System and the largest and most massive relative to its parent planet, with a diameter about one-quarter that of Earth (comparable to the width of ...

of the planet

Saturn Saturn is the sixth planet from the Sun and the second-largest in the Solar System, after Jupiter. It is a gas giant with an average radius of about nine and a half times that of Earth. It has only one-eighth the average density of Earth; h ...

. The hills are located near Titan's

equator The equator is a circle of latitude, about in circumference, that divides Earth into the Northern and Southern hemispheres. It is an imaginary line located at 0 degrees latitude, halfway between the North and South poles. The term can als ...

at International Astronomical Union
"Arwen Colles"
''Gazetteer of Planetary Nomenclature''. Accessed Dec 29, 2012. within the Belet region. Arwen Colles is named after Arwen Undómiel, an Elvish princess in

J. R. R. Tolkien John Ronald Reuel Tolkien (, ; 3 January 1892 – 2 September 1973) was an English writer and philology, philologist. He was the author of the high fantasy works ''The Hobbit'' and ''The Lord of the Rings''. From 1925 to 1945, Tolkien was ...

's fictional world of

Middle Earth Middle or The Middle may refer to: * Centre (geometry), the point equally distant from the outer limits. Places * Middle (sheading), a subdivision of the Isle of Man * Middle Bay (disambiguation) * Middle Brook (disambiguation) * Middle Creek ( ...

who appears most prominently in ''

The Lord of the Rings ''The Lord of the Rings'' is an epic high-fantasy novel by English author and scholar J. R. R. Tolkien. Set in Middle-earth, intended to be Earth at some time in the distant past, the story began as a sequel to Tolkien's 1937 children's boo ...

''. The name follows a convention that Titanean colles (hills or small knobs) are named after characters in Tolkien's work. It was formally announced on December 19, 2012.Jennifer Blue
"Names for Five Colles and One Patera on Titan"
. ''USGS Astrologeology Science Center''. Dec 19, 2012.

References

Extraterrestrial hills Surface features of Titan (moon) {{Crater-stub