(38084) 1999 HB12

(38084) 1999 HB₁₂

Discovery
Discovered by	Marc W. Buie, Robert L. Millis
Discovery date	18 April 1999
Designations
MPC designation	(38084) 1999 HB12
Minor planet category	TNO (2:5 resonance)
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 3
Observation arc	4049 days (11.09 yr)
Aphelion	79.645 AU (11.9147 Tm)
Perihelion	32.569 AU (4.8723 Tm)
Semi-major axis	56.107 AU (8.3935 Tm)
Eccentricity	0.41952
Orbital period	420.28 yr (153507 d)
Mean anomaly	357.51°
Mean motion	0° 0^m 8.443^s / day
Inclination	13.138°
Longitude of ascending node	166.35°
Argument of perihelion	66.315°
Earth MOID	31.5807 AU (4.72441 Tm)
Jupiter MOID	27.2802 AU (4.08106 Tm)
Physical characteristics
Dimensions	160 km
Geometric albedo	0.09 (assumed)
Absolute magnitude (H)	7.4

(38084) 1999 HB₁₂, also written as (38084) 1999 HB12, is a trans-Neptunian object that resides in the Kuiper belt region of the Solar System. It was discovered on 18 April 1999 by Marc W. Buie and Robert L. Millis.

It is in a 2:5 orbital resonance with Neptune.

References

1. "JPL Small-Body Database Browser: 38084 (1999 HB12)". NASA/Jet Propulsion Laboratory. Retrieved 5 April 2016.

1. http://www.minorplanetcenter.org/iau/lists/TNOs.html
2. http://www.johnstonsarchive.net/astro/tnoslist.html

External links

• (38084) 1999 HB12 at the JPL Small-Body Database

• Discovery · Orbit diagram · Orbital elements · Physical parameters