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(90568) 2004 GV9 - Wikipedia

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(90568) 2004 GV₉
Discovery^[1]
Hubble Space Telescope image of 2004 GV₉, taken in March 2010
Discovered by	NEAT
Discovery date	13 April 2004
Designations
MPC designation	2004 GV₉
Minor planet category	Cubewano (MPC)^[2] Extended (DES)^[3]
Orbital characteristics^[4]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 2
Observation arc	22031 days (60.32 yr)
Earliest precovery date	21 December 1954
Aphelion	45.618 AU (6.8244 Tm)
Perihelion	38.7281 AU (5.79364 Tm)
Semi-major axis	42.173 AU (6.3090 Tm)
Eccentricity	0.081681
Orbital period (sidereal)	273.88 yr (100034 d)
Mean anomaly	34.6030°
Mean motion	0° 0^m 12.956^s / day
Inclination	21.9718°
Longitude of ascending node	250.6142°
Argument of perihelion	293.200°
Earth MOID	37.7917 AU (5.65356 Tm)
Jupiter MOID	33.6786 AU (5.03825 Tm)
Physical characteristics
Dimensions	680±34 km^[5]
Synodic rotation period	5.86 h (0.244 d)
Sidereal rotation period	5.86 h^[4]
Geometric albedo	0.077+0.0084 −0.0077^[5]
Spectral type	BR^[5] B−V=0.95, V−R=0.52^[6] B₀−V₀=0.843^[7]
Apparent magnitude	19.9^[8]
Absolute magnitude (H)	4.25±0.04^[5] 4.0^[4]

(90568) 2004 GV₉ (provisional designation 2004 GV₉) is a trans-Neptunian object that was discovered on April 13, 2004 by NEAT.^[1] It has been listed as a cubewano by the Minor Planet Center.^[2] It was discovered on 13 April 2004 by NEAT. It has been observed forty-seven times, with precovery images back to 1954.^[4] The object has an orbital period of 273.88 years. Its maximum distance from the Sun (aphelion) is 45.62 AU, and its closest (perihelion) is 38.7 AU. It has an inclination of 21.9718° and an eccentricity of 0.082.

M. E. Brown estimates that is very likely a dwarf planet.^[9] A diameter of 680±34 km has been determined from combined observations of the Herschel and Spitzer space telescopes.^[5] Tancredi notes that light-curve-amplitude analysis shows only small deviations, suggesting that (90568) 2004 GV₉ could be a spheroid with small albedo spots and hence a dwarf planet.^[10] However, its low albedo suggests it has never been resurfaced and thus is unlikely to have planetary geology.

References

^ ^a ^b Spahr, Timothy B. (2004-04-14). "MPEC 2004-G32 : 2004 GV9". IAU Minor Planet Center. Harvard-Smithsonian Center for Astrophysics. Retrieved 2010-01-06.
^ ^a ^b "MPEC 2009-R09 : Distant Minor Planets (2009 SEPT. 16.0 TT)". IAU Minor Planet Center. 2009-09-04. Retrieved 2009-10-04.
^ Marc W. Buie. "Orbit Fit and Astrometric record for 90568" (2004-06-09 using 46 of 47 observations). SwRI (Space Science Department). Retrieved 2009-10-04.
^ ^a ^b ^c ^d "JPL Small-Body Database Browser: 90568 (2004 GV9)" (2011-04-11 last obs). Retrieved 7 April 2016.
^ ^a ^b ^c ^d ^e Vilenius, E.; Kiss, C.; Mommert, M.; et al. (2012). ""TNOs are Cool": A survey of the trans-Neptunian region VI. Herschel/PACS observations and thermal modeling of 19 classical Kuiper belt objects". Astronomy & Astrophysics. 541: A94. arXiv:1204.0697. Bibcode:2012A&A...541A..94V. doi:10.1051/0004-6361/201118743. S2CID 54222700.
^ Tegler, Stephen C. (2007-02-01). "Kuiper Belt Object Magnitudes and Surface Colors". Archived from the original on 2006-09-01. Retrieved 2009-12-30.
^ David L. Rabinowitz; Bradley E. Schaefer; Martha W. Schaefer; Suzanne W. Tourtellotte (2008). "The Youthful Appearance of the 2003 EL61 Collisional Family". The Astronomical Journal. 136 (4): 1502–1509. arXiv:0804.2864. Bibcode:2008AJ....136.1502R. doi:10.1088/0004-6256/136/4/1502. S2CID 117167835.
^ "AstDys (90568) 2004GV9 Ephemerides". Department of Mathematics, University of Pisa, Italy. Retrieved 2009-10-06.
^ Michael E. Brown. "How many dwarf planets are there in the outer solar system? (updates daily)". California Institute of Technology. Retrieved 30 August 2016.
^ Tancredi, G., & Favre, S. (2008) Which are the dwarfs in the Solar System?. Depto. Astronomía, Fac. Ciencias, Montevideo, Uruguay; Observatorio Astronómico Los Molinos, MEC, Uruguay. Retrieved 10-08-2011

External links

(90568) 2004 GV9 at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters

v t e Minor planets navigator
(90568) 2004 GV₉

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Candidate

Asteroids	Hygiea Interamnia
Centaurs	Chariklo Chiron Pholus 1999 OX₃ 2013 TC₁₄₆ 2014 NW₆₅
Plutinos	Huya Ixion 2001 QF₂₉₈ 2002 VR₁₂₈ 2002 XV₉₃ 2003 AZ₈₄ 2003 UZ₄₁₃ 2003 VS₂ 2007 JH₄₃ 2017 OF69
Twotinos	2002 WC₁₉
Cubewanos	Chaos Salacia Varda Varuna 1998 SN₁₆₅ 2002 AW₁₉₇ 2002 CY248 2002 KX₁₄ 2002 MS₄ 2002 UX₂₅ 2003 QW₉₀ 2004 GV₉ 2004 NT₃₃ 2004 PF₁₁₅ 2004 TY₃₆₄ 2004 UX₁₀ 2005 RN₄₃ 2005 UQ₅₁₃ 2010 FX86
Other KBOs	1999 CD₁₅₈ 1999 DE₉ 2000 YW₁₃₄ 2002 XW₉₃ 2010 JO₁₇₉ 2010 VK₂₀₁ 2011 FW62 2011 GM₂₇ 2013 FZ₂₇ 2014 UM₃₃ 2015 AM₂₈₁ 2015 RR₂₄₅
Scattered disc objects	Gǃkúnǁʼhòmdímà Dziewanna 1996 GQ₂₁ 1996 TL₆₆ 2001 UR₁₆₃ 2002 TC₃₀₂ 2004 XA₁₉₂ 2005 QU₁₈₂ 2005 RM₄₃ 2006 QH181 2008 OG₁₉ 2010 KZ39 2010 RE₆₄ 2010 RF₄₃ 2010 JO179 2010 TJ 2010 VZ₉₈ 2013 FY₂₇ 2014 AN₅₅ 2014 EZ₅₁ 2014 UZ224 2014 WK₅₀₉ 2015 KH162 2015 RR245 2017 FO161 2018 AG37 2018 VG18 2021 DR15 2021 LL37
Detached objects	2003 FY₁₂₈ 2003 QX₁₁₃ 2004 XR₁₉₀ 2005 TB₁₉₀ 2007 JJ₄₃ 2008 ST₂₉₁
Sednoids	2012 VP113

Category

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Minor planets

Designation Groups List Moon Meanings of names
Asteroid	Active Aten asteroid Asteroid belt Family Jupiter trojan Near-Earth Spectral types
Distant minor planet	Centaur Neptune trojan Damocloid Trans-Neptunian object Detached Kuiper belt Oort cloud Scattered disc

Comets

Other

v t e Trans-Neptunian objects
TNO classes	Cubewanos Scattered-disc objects Detached objects Resonant objects Neptune trojans Plutinos Twotinos TNO moons
Dwarf planets (moons)	Orcus Vanth Pluto Charon Styx Nix Kerberos Hydra Haumea Namaka Hiʻiaka Ring Quaoar Weywot Rings Makemake MK2 Gonggong Xiangliu Eris Dysnomia Sedna
Sednoids	90377 Sedna 2012 VP113 541132 Leleākūhonua

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