Discovery date 18 December 2001 Minor planet category TNO (3:5 resonance) Aphelion 48.725 AU (7.2892 Tm) | MPC designation (126154) 2001 YH140 Observation arc 4777 days (13.08 yr) | |
Discovered by Michael E. Brown,
Chadwick A. Trujillo | ||
(126154) 2001 YH140, also written as (126154) 2001 YH140, is a resonant trans-Neptunian object discovered on December 18, 2001 by C. A. Trujillo, M. E. Brown.
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Orbit and rotation
(126154) 2001 YH140 is locked in 3:5 mean-motion resonance with Neptune. When it makes three revolutions around the Sun, Neptune makes exactly five. The rotation period of (126154) 2001 YH140 is estimated to be 13.25 ± 0.2 hours.
Physical characteristics
In 2010 thermal flux from (126154) 2001 YH140 in the far-infrared was measured by the Herschel Space Telescope. As a result, its size has been estimated to be 300–390 km (190–240 mi).
References
(126154) 2001 YH140 Wikipedia(Text) CC BY-SA