(691721) 2014 QY441: Difference between revisions

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Revision as of 01:05, 22 January 2025 editNrco0e (talk \| contribs)Extended confirmed users18,796 edits This is not a dwarf planet candidate; where's the citation? Plus, a 300 km diameter is far too small to qualify as one.← Previous edit		Revision as of 00:34, 23 January 2025 edit undoThePurgatori (talk \| contribs)Extended confirmed users967 editsNo edit summaryTags: Mobile edit Mobile web edit Advanced mobile editNext edit →
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	{{Sources exist\|date=January 2025}}
	{{DISPLAYTITLE:{{mp\|(691721) 2014 QY\|441}}}}		{{DISPLAYTITLE:{{mp\|(691721) 2014 QY\|441}}}}
			{{Short description\|Trans-Neptunian object}}
	{{Infobox planet		{{Infobox planet
			\| minorplanet = yes
⚫	\| ~~name~~ = {{mp\|2014 QY\|441}}
	\| ~~discovered~~ = ~~22 August~~ 2014		\| name = {{mp\|(691721) 2014 QY\|441}}
			\| discovery_ref = <ref name="MPC-object" />
⚫	\| mp_category = ]{{·}}]{{·}}]
			\| discoverer = ]
⚫	\| ~~adjectives~~ = {{mp\|2014 QY\|441}}
			\| discovery_site = ]
			\| discovered = 21 August 2014
		⚫	\| mpc_name = {{mp\|(691721) 2014 QY\|441}}
		⚫	\| alt_names = {{mp\|2014 QY\|441}}
		⚫	\| mp_category = ]<ref name="MPC-object" />{{·}}]<ref name="Buie-DES" /><ref name="Johnston-TNOs" />{{·}}]<ref name="MPC-object" />{{·}}]<ref name="Brown-dplist" />
			\| orbit_ref = <ref name="jpldata" />
	\| epoch = 17 October 2024 2460600.5		\| epoch = 17 October 2024 2460600.5
	\| observation_arc = 6635 days (18.17 years)		\| observation_arc = 6635 days (18.17 years)
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	\| semimajor = 36.6 AU		\| semimajor = 36.6 AU
	\| eccentricity = 0.074		\| eccentricity = 0.074
	\| period = ~~81048 days (~~221.8 ~~years~~)		\| period = 221.8 yrs (81048 d)
			\| mean_anomaly = 260.65
			\| mean_motion = 0.000444
	\| inclination = 10.1°		\| inclination = 10.1°
			\| asc node = 79.649
			\| time_periastron = January 11 2086
			\| arg_peri = 115.48
	\| moid = 32.9 AU		\| moid = 32.9 AU
	\| jupiter_moid = 28.5 AU		\| jupiter_moid = 28.5 AU
	\| tisserand = 5.352		\| tisserand = 5.352
			\| mean_diameter = 262 km<ref name="Johnston-TNOs" /><br />360 km<ref name="Brown-dplist" />
	\| perihelion_rate = 115.4
			\| albedo = 0.8<ref name="Brown-dplist" />
	\| node_rate = 79.6
		⚫	\| abs_magnitude = 5.8<ref name="Brown-dplist" />
	\| mean_diameter = 265 km<br />316 km
	\| albedo = 0.8
⚫	\| abs_magnitude = 5.8
	}}		}}

	'''{{mp\|(691721) 2014 QY\|441}}''', also written '''2014 QY441''', is a ] in the ]. It is in a 3:4 mean-motion ] with the planet ]. It was discovered in 21 August 2014 by the ] project at ] in the big island of Hawaii, United States.		'''{{mp\|(691721) 2014 QY\|441}}''', also written '''2014 QY441''', is a ] in the ].<ref name="MPC-object" /> It is in a 3:4 mean-motion ] with the planet ].<ref name="Buie-DES" /><ref name="Johnston-TNOs" /> It was discovered in 21 August 2014 by the ] project at ] in the big island of Hawaii, United States.<ref name="MPC-object" /> It is a ] and measures about 350 km in diameter.<ref name="Brown-dplist" />

	== Orbit and classification ==		== Orbit and classification ==
	{{mp\|2014 QY\|441}} orbits the Sun at a distance of 33.9-39.3 AU every 221.8 years (81048.1 days, ] of 36.6 AU). Its orbit has an ] of 0.074 and an ] of 10°, with respect to the ]. The body's ] begins with its ] date at ].		{{mp\|2014 QY\|441}} orbits the Sun at a distance of 33.9-39.3 AU every 221.8 years (81048.1 days, ] of 36.6 AU). Its orbit has an ] of 0.074 and an ] of 10°, with respect to the ].<ref name="jpldata" /> The body's ] begins with its ] date at ].<ref name="MPC-object" />

	{{mp\|2014 QY\|441}} is a ] and belongs to a ~~snall~~ number of ]s with semi-major axes of 36.0-37.0 AU. These objects stay in a ] mean-notion ] with the planet ], that is, for every three orbits the object makes, Neptune makes four. These objects are located in the inner rim of the ], with the ]s, inner classicals, and other resonances, a large ] of mostly non-resonant ]s.		{{mp\|2014 QY\|441}} is a ] and belongs to a small number of ]s with semi-major axes of 36.0-37.0 AU. These objects stay in a ] mean-notion ] with the planet ], that is, for every three orbits the object makes, Neptune makes four.<ref name="Johnston-TNOs" /><ref name="Buie-DES" /> These objects are located in the inner rim of the ], with the ]s, inner classicals, and other resonances, a large ] of mostly non-resonant ]s.

	== Numbering and naming ==		== Numbering and naming ==
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	== Physical characteristics ==		== Physical characteristics ==
	Based on a generic magnitude-to-diameter conversion, {{mp\|2014 QY\|441}} measures approximately {{convert\|308\|km\|mi\|abbr=off\|sigfig=2\|sp=us}} in diameter, for an assumed ] of 0.8 and an ] of 5.7.<ref name="Johnston-TNOs~~" /><ref name="h~~" /> ] measures a diameter of 316 km with an absolute magnitude of 5.8 and an albedo of 8%. On his website, Michael E. Brown considers {{mp\|2014 QY\|441}} as a ], which is the category with the lowest certainity in his 5-class taxonomic system.<ref name="Brown-dplist" /> As of 2024, no physical characteristics has been obtained from ] observations. The body's color, ], ], and shape remain unknown.		Based on a generic magnitude-to-diameter conversion, {{mp\|2014 QY\|441}} measures approximately {{convert\|308\|km\|mi\|abbr=off\|sigfig=2\|sp=us}} in diameter, for an assumed ] of 0.8 and an ] of 5.7.<ref name="Johnston-TNOs" /> ] measures a diameter of 316 km with an absolute magnitude of 5.8 and an albedo of 0.08. On his website, Michael E. Brown considers {{mp\|2014 QY\|441}} as a ], which is the category with the lowest certainity in his 5-class taxonomic system.<ref name="Brown-dplist" /> As of 2024, no physical characteristics has been obtained from ] observations. The body's color, ], ], and shape remain unknown.

	== See also ==		== See also ==
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	\|work = Minor Planet Center		\|work = Minor Planet Center
	\|url = https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html		\|url = https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html
	\|access-date= 10 September 2021}}</ref>

⚫	<ref name="Buie-DES">{{cite web
⚫	\|title = Orbit Fit and Astrometric record for 691721
	\|work = ]
⚫	\|url = ~~https~~://www.boulder.swri.edu/~buie/kbo/astrom/691721.html
	\|access-date= 10 September 2021}}</ref>		\|access-date= 10 September 2021}}</ref>

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	\|url = http://web.gps.caltech.edu/~mbrown/dps.html		\|url = http://web.gps.caltech.edu/~mbrown/dps.html
	\|access-date= 10 September 2021}}</ref>		\|access-date= 10 September 2021}}</ref>

		⚫	<ref name="Buie-DES">{{cite web
			\|author = Marc W. Buie
		⚫	\|title = Orbit Fit and Astrometric record for 691721
			\|publisher = SwRI (Space Science Department)
		⚫	\|url = http://www.boulder.swri.edu/~buie/kbo/astrom/691721.html
			\|accessdate = 23 October 2017}}</ref>

	}} <!-- end of reflist -->		}} <!-- end of reflist -->

Revision as of 00:34, 23 January 2025

Trans-Neptunian object

(691721) 2014 QY₄₄₁
Discovery
Discovered by	Pan-STARRS
Discovery site	Haleakala
Discovery date	21 August 2014
Designations
MPC designation	(691721) 2014 QY₄₄₁
Alternative designations	2014 QY₄₄₁
Minor planet category	TNO · res 3:4 · distant · p-DP
Orbital characteristics
Epoch 17 October 2024 2460600.5
Observation arc	6635 days (18.17 years)
Earliest precovery date	2 November 2005
Aphelion	39.3 AU
Perihelion	33.6 AU
Semi-major axis	36.6 AU
Eccentricity	0.074
Orbital period (sidereal)	221.8 yrs (81048 d)
Mean anomaly	260.65
Mean motion	0.000444
Inclination	10.1°
Time of perihelion	January 11 2086
Argument of perihelion	115.48
Earth MOID	32.9 AU
Jupiter MOID	28.5 AU
T_Jupiter	5.352
Physical characteristics
Mean diameter	262 km 360 km
Geometric albedo	0.8
Absolute magnitude (H)	5.8

(691721) 2014 QY₄₄₁, also written 2014 QY441, is a resonant trans-Neptunian object in the Kuiper belt. It is in a 3:4 mean-motion orbital resonance with the planet Neptune. It was discovered in 21 August 2014 by the Pan-STARRS project at Haleakala in the big island of Hawaii, United States. It is a dwarf planet candidate and measures about 350 km in diameter.

Orbit and classification

2014 QY₄₄₁ orbits the Sun at a distance of 33.9-39.3 AU every 221.8 years (81048.1 days, semi-major axis of 36.6 AU). Its orbit has an orbital eccentricity of 0.074 and an orbital inclination of 10°, with respect to the ecliptic. The body's observation arc begins with its precovery date at Kitt Peak.

2014 QY₄₄₁ is a trans-Neptunian object and belongs to a small number of resonant trans-Neptunian objects with semi-major axes of 36.0-37.0 AU. These objects stay in a 3:4 mean-notion orbital resonance with the planet Neptune, that is, for every three orbits the object makes, Neptune makes four. These objects are located in the inner rim of the Kuiper belt, with the plutinos, inner classicals, and other resonances, a large circumstellar disk of mostly non-resonant classical Kuiper belt objects.

Numbering and naming

2014 QY₄₄₁ was numbered by the Minor Planet Center on 4 April 2024, receiving the number (691721) in the minor planet catalog (M.P.C. ?). As of 2024, it has not been named.

Physical characteristics

Based on a generic magnitude-to-diameter conversion, 2014 QY₄₄₁ measures approximately 308 kilometers (190 miles) in diameter, for an assumed albedo of 0.8 and an magnitude of 5.7. Michael E. Brown measures a diameter of 316 km with an absolute magnitude of 5.8 and an albedo of 0.08. On his website, Michael E. Brown considers 2014 QY₄₄₁ as a possible dwarf planet, which is the category with the lowest certainity in his 5-class taxonomic system. As of 2024, no physical characteristics has been obtained from photometric observations. The body's color, rotation period, pole, and shape remain unknown.

References

^ "691721 (2014 QY441)". Minor Planet Center. Retrieved 10 September 2021.
^ Marc W. Buie. "Orbit Fit and Astrometric record for 691721". SwRI (Space Science Department). Retrieved 23 October 2017.
^ "List of Known Trans-Neptunian Objects". Johnston's Archive. 18 August 2020. Retrieved 10 September 2021.
^ Brown, Michael E. "How many dwarf planets are there in the outer solar system?". California Institute of Technology. Retrieved 10 September 2021.
^ "JPL Small-Body Database Browser: 691721 (2014 QY441)" (2020-12-09 last obs.). Jet Propulsion Laboratory. Retrieved 10 September 2021.
"MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 10 September 2021.

External links

List of Transneptunian Objects, Minor Planet Center
Discovery Circumstances: Numbered Minor Planets (690000)–(700000), Minor Planet Center
(691721) 2014 QY441 at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
(691721) 2014 QY441 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

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(691721) 2014 QY₄₄₁

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