2014 UZ224: Difference between revisions

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	\| named_after =		\| named_after =
	\| pronounced =		\| pronounced =
	\| mp_category = ] <ref name="jpldata"/>{{·}}] <ref name="~~MPC-CEN-SDO-list"~~/><br />] <ref name="Brown-dplist"/>		\| mp_category = ] <ref name="jpldata" />{{·}}] <ref name=Gerdes2017" /><br />] <ref name="Brown-dplist" />
	\| orbit_ref =  <ref name="jpldata"/>		\| orbit_ref =  <ref name="jpldata"/>
	\| epoch = 31 May 2020 (] 2459000.5)		\| epoch = 31 May 2020 (] 2459000.5)
	\| uncertainty = 6		\| uncertainty = 6
	\| observation_arc = 12.08 yr (4,414 days)		\| observation_arc = 12.08 yr (4,414 days)
	\| earliest_precovery_date = 15 October 2006<ref name="MPC-object"/>		\| earliest_precovery_date = 15 October 2006<ref name="MPC-object" />
	\| aphelion = {{val\|176.371\|3.189}} ]		\| aphelion = {{val\|176.371\|3.189}} ]
	\| perihelion = {{val\|38.324\|0.189}} AU		\| perihelion = {{val\|38.324\|0.189}} AU
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	\|url= https://www.npr.org/sections/thetwo-way/2016/10/11/497071139/a-friend-for-pluto-astronomers-find-new-dwarf-planet-in-our-solar-system		\|url= https://www.npr.org/sections/thetwo-way/2016/10/11/497071139/a-friend-for-pluto-astronomers-find-new-dwarf-planet-in-our-solar-system
	\|title= A Friend for Pluto: Astronomers Find New Dwarf Planet in Our Solar System		\|title= A Friend for Pluto: Astronomers Find New Dwarf Planet in Our Solar System
	}}</ref> It has a diameter of ~{{Convert\|635\|km\|mi\|abbr=on}} and reflects just 13 percent of the sunlight that hits it on its 1,136 year orbit around the sun.<ref name="Gerdes2017"/><ref name=jpldata/> Since the numbering of {{mpl\|(532037) 2013 FY\|27}} in May 2019, {{mp\|2014 UZ\|224}} may be the largest ] object in the Solar System.<ref>{{Citation\|url=http://web.gps.caltech.edu/~mbrown/dps.html\|title=How many dwarf planets are there in the outer solar system?\|date=20 May 2019\|access-date=1 June 2019\|author=Brown, M.}}</ref>		}}</ref> It has a diameter of ~{{Convert\|635\|km\|mi\|abbr=on}} and reflects just 13 percent of the sunlight that hits it on its 1,136 year orbit around the sun.<ref name="Gerdes2017"/><ref name=jpldata/> Since the numbering of {{mpl\|(532037) 2013 FY\|27}} in May 2019, {{mp\|2014 UZ\|224}} may be the largest ] object in the Solar System.<ref name="Brown-dplist">{{Citation\|url=http://web.gps.caltech.edu/~mbrown/dps.html\|title=How many dwarf planets are there in the outer solar system?\|date=20 May 2019\|access-date=1 June 2019\|author=Brown, M.}}</ref>

	== See also ==		== See also ==

Revision as of 02:10, 6 January 2021

2014 UZ₂₂₄
Discovery
2014 UZ₂₂₄ imaged by ALMA
Discovered by	David Gerdes et al.
Discovery site	Cerro Tololo Obs.
Discovery date	19 August 2014 announced: 11 October 2016
Designations
MPC designation	2014 UZ₂₂₄
Minor planet category	TNO · SDO p-DP
Orbital characteristics
Epoch 31 May 2020 (JD 2459000.5)
Uncertainty parameter 6
Observation arc	12.08 yr (4,414 days)
Earliest precovery date	15 October 2006
Aphelion	176.371±3.189 AU
Perihelion	38.324±0.189 AU
Semi-major axis	107.347±1.941 AU
Eccentricity	0.64299
Orbital period (sidereal)	1112.23±30.17 yr (406,243 days)
Mean anomaly	320.258±1.484°
Mean motion	0° 0 3.19 / day
Inclination	26.790°
Longitude of ascending node	130.700±0.013°
Argument of perihelion	30.050±0.408°
Physical characteristics
Mean diameter	635+65 −72 km
Geometric albedo	0.131+0.038 −0.028
Spectral type	G–R = 0.77±0.11
Apparent magnitude	23.38±0.05
Absolute magnitude (H)	3.5 · 3.4

2014 UZ₂₂₄ is a trans-Neptunian object (TNO) and possible dwarf planet orbiting in the scattered disc. As of October 2018, it was approximately 90.7 astronomical units (1.357×10 km) from the Sun, and will slowly decrease in distance until it reaches its perihelion of 38 AU sometime near 2142. The discoverers have nicknamed it "DeeDee" for "Distant Dwarf".

2014 UZ₂₂₄ was discovered by a team led by David Gerdes using data collected by the large camera Dark Energy Camera (DECam). 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. Since the numbering of (532037) 2013 FY27 in May 2019, 2014 UZ₂₂₄ may be the largest unnumbered object in the Solar System.

References

"MPEC MPEC 2016-T104 : 2014 UZ224". IAU Minor Planet Center. 11 October 2016. Retrieved 11 October 2016. (K14UM4Z)
^ "JPL Small-Body Database Browser: (2014 UZ224)" (last observation: 2018-11-15; arc: 4.24 years). Jet Propulsion Laboratory. Retrieved 11 October 2016.
Cite error: The named reference Gerdes2017" was invoked but never defined (see the help page).
^ Brown, M. (20 May 2019), How many dwarf planets are there in the outer solar system?, retrieved 1 June 2019
"2014 UZ224". Minor Planet Center. International Astronomical Union. Retrieved 5 January 2021.
^ Gerdes, D. W.; Sako, M.; Hamilton, S.; Zhang, K.; Khain, T.; Becker, J. C.; et al. (April 2017). "Discovery and Physical Characterization of a Large Scattered Disk Object at 92 AU". The Astrophysical Journal Letters. 839 (1): 7. arXiv:1702.00731. Bibcode:2017ApJ...839L..15G. doi:10.3847/2041-8213/aa64d8. S2CID 35694455.{{cite journal}}: CS1 maint: unflagged free DOI (link)
"Soon you won't care about a newly discovered dwarf planet". Wired. 18 October 2016.
"New dwarf planet solar system's 2nd most distant". Umich.edu.
Cofield, Calla. "New Dwarf Planet Found in Our Solar System". Scientific American. Retrieved 12 October 2016.
"A Friend for Pluto: Astronomers Find New Dwarf Planet in Our Solar System".

External links

2014 UZ224 ("DeeDee") Fact Sheet
2014 UZ224 at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
2014 UZ224 at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters

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

Small Solar System bodies

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

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Revision as of 02:10, 6 January 2021

See also

References

External links