2014 UZ224

2014 UZ₂₂₄
	Orbit of 2014 UZ224
Discovery[1]
Discovery date	19 August 2014; announced: 11 October 2016
Designations
MPC designation	2014 UZ224
Minor planet category	TNO, SDO
Orbital characteristics[2]
	Epoch 31 July 2016 (JD 2457600.5)
	Uncertainty parameter 7
Observation arc	699 days (1.91 yr)
Aphelion	180 AU (27 Tm) ± 12 (Q)
Perihelion	37.97 AU (5.680 Tm) ± 0.69 (q)
Semi-major axis	108.9 AU (16.29 Tm) ± 7.4 (a)
Eccentricity	0.65136 (e)
Orbital period	1136.42 yr (415076 d)
Mean anomaly	320.2683° (M)
Mean motion	0° 0m 3.122s /day (n)
Inclination	26.7851° (i)
Longitude of ascending node	131.1421° (Ω)
Argument of perihelion	29.5472° (ω)
Physical characteristics
Dimensions	635+65; −72 km[3]
Geometric albedo	0.131+0.038; −0.028[3]
Apparent magnitude	23.2
Absolute magnitude (H)	3.5 (JPL/MPC)[2]

2014 UZ₂₂₄ is a trans-Neptunian object (TNO) and possible dwarf planet orbiting in the scattered disc. As of October 10, 2016, it was approximately 91.6 astronomical units (1.370×10¹⁰ km) from the Sun, and will slowly decrease in distance until it reaches its perihelion of 38 AU sometime near 2142. As of February 2017, 2014 UZ₂₂₄ is the third-furthest known observable Solar System object from the Sun, after Eris (96.2 AU) and V774104 (<96 AU?). The discoverers have nicknamed it "DeeDee" for "Distant Dwarf".^[4]^[5]

2014 UZ₂₂₄ was discovered by a team led by David Gerdes using data collected by the large camera Dark Energy Camera (DECam).^[6]^[7] It has a diameter of ~635 km (395 mi) and reflects just 13 percent of the sunlight that hits it on its 1,136 year orbit around the sun.^[3]^[2]

Most-distant known objects in the Solar System as of 2 October 2018^[8]
Object name	Distance from the Sun (AU)			Apparent magnitude	Absolute magnitude (H)
Object name	Current	Perihelion	Aphelion	Apparent magnitude	Absolute magnitude (H)
V774104	103?	Unknown	Unknown	24	4
Eris	96.10	37.8	97.6	18.7	−1.1
2014 UZ224	90.70	38.0	179.8	23.2	3.5
2015 TH367	89.32	28.6	139.7	26.2	6.6
2007 OR₁₀	88.08	33.0	100.8	21.7	1.8
Sedna	85.00	76.0	939	21.0	1.5
2014 FC69	84.87	40.3	106.9	24.1	4.6
2013 FS28	84.55	34.6	347.6	24.5	4.9
2006 QH181	83.98	37.8	96.7	23.6	4.3
2012 VP113	83.72	80.5	438	23.4	4.0
2015 VO166	83.44	38.2	113	25.2	5.9
2015 UH87	81.80	34.7	90.1	25.3	6.0
2013 FY27	80.02	36.1	81.8	22.1	3.0
2015 TG387	78.65	64.9	2120	24.3	5.3
2017 FO161	78.57	33.1	93.9	24.2	5.2
2015 TJ367	78.25	33.5	127.5	25.7	6.7
2015 VJ168	72.90	37.4	81.3	24.6	5.8
2010 GB174	72.16	48.7	693	25.1	6.5
2015 GN55	71.56	32.7	78.4	24.5	5.8
2014 FJ72	71.41	38.7	152.2	24.2	5.6
2016 TS97	71.36	36.2	71.6	24.8	6.1
2015 VL168	70.86	37.6	136	25.3	6.1
2012 FH84	68.80	45.8	80.6	25.7	7.3
2015 RZ277	68.45	34.3	90.0	25.5	6.8
2015 GR50	68.41	35.6	78.6	25.1	6.7
2015 GP50	67.87	40.3	70.3	24.8	6.5
2013 FQ28	67.86	48.7	80.6	24.4	6.0
2016 CD289	66.66	36.8	75.3	25.6	7.3
2014 UD228	66.23	36.4	73.0	24.4	6.1
2015 KV167	65.16	38.2	65.3	25.4	7.2
2013 UJ15	65.06	36.3	69.2	25.2	7.0
2014 FL72	64.69	38.2	170.4	25.0	6.8
2014 FD70	64.51	38.6	69.3	25.0	6.9
2015 KG172	64.05	42.1	68.7	24.1	6.0
2014 SU349	63.50	30.8	109.8	25.0	7.0
2015 RL258	63.35	34.7	67.8	24.7	6.5
2015 KF172	63.23	38.2	102.8	23.6	5.5
2015 RR245	63.02	33.7	129.2	22.1	3.9
2011 GM89	62.87	37.2	68.8	25.6	7.1
2013 AT183	62.77	36.0	88.1	22.0	4.7
2014 FE72	62.47	36.3	4274.0	24.1	6.1
2017 DO121	62.00	26.7	185.6	25.6	7.6
2000 CR₁₀₅	61.85	44.3	412	23.9	6.3
2015 VG157	61.79	39.0	68.5	25.5	7.5
2014 SV349	61.57	34.2	89.0	23.0	5.0
2008 ST291	60.96	42.4	154.5	22.2	4.2
2015 RX245	60.76	45.5	768.9	24.2	6.2
2014 FM72	60.55	34.4	76.6	24.1	6.2
2017 DP121	60.33	40.5	60.4	25.1	7.2
2014 FF72	60.25	37.1	63.3	24.8	6.9
2003 QX113	60.16	36.7	62.1	22.5	4.7
2015 KH162	59.76	41.5	82.8	21.6	3.9
2015 FU403	59.75	34.0	88.4	25.3	7.5
2015 GW55	59.65	34.0	137.6	24.5	6.7
2013 JQ64	59.40	22.6	76.0	24.4	6.2
2015 RK258	59.03	35.8	111.8	24.9	7.1
This table includes all known objects currently located at least twice as far as Neptune.^[8] See List of trans-Neptunian objects for more.

References

↑ "MPEC MPEC 2016-T104 : 2014 UZ224". IAU Minor Planet Center. 2016-10-11. Retrieved 2016-10-11. (K14UM4Z)
1 2 3 "JPL Small-Body Database Browser: (2014 UZ224)" (last observation: 2016-07-18; arc: 1.91 years). Jet Propulsion Laboratory. Retrieved 11 October 2016.
1 2 3 "DISCOVERY AND PHYSICAL CHARACTERIZATION OF A LARGE SCATTERED DISK OBJECT AT 92 AU" (PDF). arXiv:1702.00731. Bibcode:2017ApJ...839L..15G. doi:10.3847/2041-8213/aa64d8. , 2017
↑ https://www.wired.com/2016/10/dwarf-planets-arent-big-news-astronomy-great-job
↑ "New dwarf planet solar system's 2nd most distant". Umich.edu.
↑ Cofield,SPACE.com, Calla. "New Dwarf Planet Found in Our Solar System". Scientific American. Retrieved 2016-10-12.
↑ "A Friend for Pluto: Astronomers Find New Dwarf Planet in Our Solar System".
1 2 "AstDyS-2, Asteroids - Dynamic Site". Retrieved 2018-04-03. Objects with distance from Sun over 59 AU

External links

2014 UZ224 at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.

[MPEC_2016-T104-1] "MPEC MPEC 2016-T104 : 2014 UZ224". IAU Minor Planet Center. 2016-10-11. Retrieved 2016-10-11. (K14UM4Z)

[jpldata-2] 1 2 3 "JPL Small-Body Database Browser: (2014 UZ224)" (last observation: 2016-07-18; arc: 1.91 years). Jet Propulsion Laboratory. Retrieved 11 October 2016.

[arXiv:1702.00731v1-3] 1 2 3 "DISCOVERY AND PHYSICAL CHARACTERIZATION OF A LARGE SCATTERED DISK OBJECT AT 92 AU" (PDF). arXiv:1702.00731. Bibcode:2017ApJ...839L..15G. doi:10.3847/2041-8213/aa64d8. , 2017

[4] ttps://www.wired.com/2016/10/dwarf-planets-arent-big-news-astronomy-great-job

[5] "New dwarf planet solar system's 2nd most distant". Umich.edu.

[6] Cofield,SPACE.com, Calla. "New Dwarf Planet Found in Our Solar System". Scientific American. Retrieved 2016-10-12.

[nprnewdwarf-7] "A Friend for Pluto: Astronomers Find New Dwarf Planet in Our Solar System".

[AstDyS-distances-8] 1 2 "AstDyS-2, Asteroids - Dynamic Site". Retrieved 2018-04-03. Objects with distance from Sun over 59 AU

Discovery^[1]
Orbit of 2014 UZ₂₂₄
Discovery date	19 August 2014 announced: 11 October 2016
Designations
MPC designation	2014 UZ₂₂₄
Minor planet category	TNO, SDO
Orbital characteristics^[2]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 7
Observation arc	699 days (1.91 yr)
Aphelion	180 AU (27 Tm) ± 12 (Q)
Perihelion	37.97 AU (5.680 Tm) ± 0.69 (q)
Semi-major axis	108.9 AU (16.29 Tm) ± 7.4 (a)
Eccentricity	0.65136 (e)
Orbital period	1136.42 yr (415076 d)
Mean anomaly	320.2683° (M)
Mean motion	0° 0^m 3.122^s /day (n)
Inclination	26.7851° (i)
Longitude of ascending node	131.1421° (Ω)
Argument of perihelion	29.5472° (ω)
Physical characteristics
Dimensions	7005635000000000000♠635+65 −72 km^[3]
Geometric albedo	6999131000000000000♠0.131+0.038 −0.028^[3]
Apparent magnitude	23.2
Absolute magnitude (H)	3.5 (JPL/MPC)^[2]

2014 UZ224

See also

References

External links