is a
centaur
A centaur ( ; grc, κένταυρος, kéntauros; ), or occasionally hippocentaur, is a creature from Greek mythology with the upper body of a human and the lower body and legs of a horse.
Centaurs are thought of in many Greek myths as being ...
and
damocloid
Damocloids are a class of minor planets such as 5335 Damocles and 1996 PW that have Halley-type or long-period highly eccentric orbits typical of periodic comets such as Halley's Comet, but without showing a cometary coma or tail. D ...
on a
retrograde and highly eccentric orbit from the outer region of the
Solar System
The Solar SystemCapitalization of the name varies. The International Astronomical Union, the authoritative body regarding astronomical nomenclature, specifies capitalizing the names of all individual astronomical objects but uses mixed "Solar S ...
. It was first observed on 17 September 2017 by the
Pan-STARRS survey at
Haleakala Observatory in Hawaii, United States.
This
unusual object measures approximately in diameter.
See also
*
* – retrograde centaur, damocloid, and potential co-orbital with Saturn
* – another retrograde centaur, damocloid, and potential co-orbital with Saturn
References
External links
*
#
Damocloids
#
Minor planet object articles (unnumbered)
#
20170917
Minor planets with a retrograde orbit
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