2008 OG19

2008 OG19
Discovery
Discovered by	Palomar Observatory team
Discovery site	Palomar Observatory
Discovery date	July 30, 2008
Designations
Minor planet category	scattered disc
Orbital characteristics^[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 3
Observation arc	2596 days (7.11 yr)
Aphelion	94.004 AU (14.0628 Tm)
Perihelion	38.576 AU (5.7709 Tm)
Semi-major axis	66.290 AU (9.9168 Tm)
Eccentricity	0.41807
Orbital period	539.73 yr (197137 d)^[1]
Mean anomaly	1.5681°
Mean motion	0° 0^m 6.574^s /day
Inclination	13.167°
Longitude of ascending node	164.02°
Argument of perihelion	140.53°
Earth MOID	37.57 AU (5.620 Tm)
Jupiter MOID	33.5319 AU (5.01630 Tm)
Physical characteristics
Dimensions	7005619000000000000♠619+56 −113 km (assuming typical SDO albedo)^[2]
Mean density	0.6 g/cm³^[2]
Sidereal rotation period	8.727^[2]
Axial tilt	13.2°
Absolute magnitude (H)	5.0

2008 OG 19 is a trans-Neptunian object and a possible dwarf planet located in the scattered disc.^[3] It was discovered on July 30, 2008 through the Palomar Observatory.

References

1 2 "2008 OG19". JPL Small-Body Database. Jet Propulsion Laboratory. SPK-ID: 3426644. Retrieved 30 March 2016.
1 2 3 Fernández-Valenzuela, Estela; Ortiz, Jose Luis; Duffard, René (2015). "2008 OG19: A highly elongated Trans-Neptunian Object". Monthly Notices of the Royal Astronomical Society. arXiv:1511.06584. Bibcode:2016MNRAS.456.2354F. doi:10.1093/mnras/stv2739.
↑ "List of Known Trans-Neptunian objects". JohnstonsArchive. Retrieved 12 April 2015.

External links

2008 OG19 at the JPL Small-Body Database
- Discovery · Orbit diagram · Orbital elements · Physical parameters

Small Solar System bodies

Minor planets

Designation Groups Moons Meanings of names Pronunciation of names

Asteroids	Aten asteroid Asteroid belt Families Jupiter Trojans Near-Earth Spectral types

Distant minor planets	Centaurs Damocloids Neptune trojans Trans-Neptunian objects Detached Kuiper belt Oort cloud Scattered disc

Comets

Meteoroids

Lists / categories

Asteroid groups and families
Asteroid moons
Binary asteroids
Minor planets

Dwarf planets

Asteroid belt	IAU: Ceres No longer rounded and therefore not dwarf planets: Vesta (disrupted out of equilibrium)

Centaurs	Possibly: Chariklo Chiron

Centaurs (extended)	Possibly: 1995 SN55 Ceto 2010 TY53

Plutinos	IAU: Pluto Additional objects proposed by Brown and Tancredi: Orcus Ixion 2003 AZ₈₄ 2004 UX₁₀ Huya Possibly: 2003 UZ₄₁₃ 2003 VS₂ 2002 VR₁₂₈ 2004 PF₁₁₅ 2002 XV93 2007 JH43 2001 QF298

Twotinos	Possibly: 2002 WC₁₉

Other resonances/ unknown resonances:	IAU: Haumea Possibly: 2002 XW₉₃ 1999 DE₉ 1999 KR₁₆ 2001 YH₁₄₀ 2011 GM27 2010 VK201 2013 FZ27 2014 UM33 1999 CD158

Cubewanos:	IAU: Makemake Additional objects proposed by Brown and Tancredi: 2002 MS₄ Salacia Quaoar Varuna Varda 2004 GV₉ 2002 AW₁₉₇ 2002 TX₃₀₀ 2005 RR₄₃ 2003 OP₃₂ 2005 RN₄₃ Possibly: Chaos Altjira Sila-Nunam 2002 UX₂₅ 2007 JJ₄₃ 2005 UQ₅₁₃ 2004 TY₃₆₄ 2003 QW₉₀ 1998 SN₁₆₅ 2002 KX₁₄ Praamzius 2004 NT₃₃ 2010 FX86 2002 CY248 2010 VR11 Rhadamanthus

Scattered disc	IAU: Eris Additional objects proposed by Brown and Tancredi: 2007 OR₁₀ 1996 TL₆₆ 2001 UR₁₆₃ 2005 RM₄₃ Possibly: 2002 TC₃₀₂ 2004 XA₁₉₂ 2005 QU₁₈₂ 2006 QH181 2007 UK₁₂₆ 2010 EK139 2010 KZ39 2010 RE64 2010 RF43 2010 TJ 2013 FY27 2008 OG19 1996 GQ₂₁ 2012 HH₂ 1999 CC₁₅₈ 2006 HH123 2010 VZ98

Area uncertain	Captured satellites that were once dwarf planets: Triton (captured by Neptune) Phoebe (captured by Saturn, and was then disrupted out of equilibrium) Possibly: 2011 FW62 (lost) 2000 YW₁₃₄ V774104

Detached objects	Possibly: 2004 XR190 2010 GB174 2008 ST291 1995 TL₈ 2005 TB₁₉₀ 2003 QX113 2003 FY₁₂₈ 2004 VN112 2000 CR₁₀₅

Sednoids	Objects proposed by Brown and Tancredi: Sedna Possibly: 2012 VP113

Former candidates	Pallas Vesta Hygiea Cybele

See also: Charon Vanth Dysnomia Hiʻiaka Mesoplanet Planemo List of trans-Neptunian objects List of possible dwarf planets List of Solar System objects List of Solar System objects by size

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