Damocloid 达摩克型小行星
(重定向自Damocloids)
Damocloids are minor planets such as 5335 Damocles and 1996 PW that have Halley-family or long-period highly eccentric orbits typical of periodic comets such as Halley's Comet, but without showing a cometary coma or tail. David Jewitt defines a damocloid as an object with a Tisserand's parameter relative to Jupiter TJ ≤ 2. This can also loosely be defined as (q < 5.2 AU, a > 8.0 AU, and e > 0.75) or i > 90 deg, but this definition that does not focus on Jupiter excludes objects such as (127546) 2002 XU93, 2003 WG166, and 2004 DA62.