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Detached Object

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Transneptunische Objekte, nach ihrer entfernung by their distance und ihrer Bahnneigung eingezeichnet. Objkte über einer Entfernung von 100 Astronomischen Einheiten sind beschriftet.
  • Resonante Transneptunische Objekte
  • Cubewanoss
  • Scattered Disk Objects
  • Detached objects

    • Detached Objects (deutsch „Losgelöste Objekte“) sind eine Klasse von Asteroiden im äußeren Sonnensystem und gehören zu den Transneptunischen Objekten. Ihr Perihel (sonnennächster Punkt) ist von Neptun, dem äußersten Planeten, und den anderen bekannten Planeten so weit entfernt, dass sie von ihnen nur mäßig beeinflusst werden. Daher erscheinen sie vom Rest des Sonnensystems „losgelöst“, mit Ausnahme der Anziehungskraft der Sonne.[1][2]

    Auf diese Weise unterscheiden sich Detached Objects erheblich von den meisten anderen bekannten Transneputinischen Objekten, die eine lose definierte Gruppe von Asteroiden bilden, die durch Gravitationsbegegnungen mit den Gasplaneten, vorwiegend Neptun, in unterschiedlichem Maße auf ihrer Umlaufbahn gestört werden. Detached Objects haben größere Perihelien als andere Transneptunische Objekte, einschließlich der Objekte in Bahnresonanz mit Neptun (z.B. (134340) Pluto), der klassischen Objekte des Kuipergürtels in nicht resonanten Bahnen wie (136472) Makemake sowie der Scattered Disk Objects wie (136199) Eris.

    Detached Objects werden in der wissenschaftlichen Literatur auch als erweiterte Scattered Disk Object (E-SDO),[3] Distant Detached Objects[4] oder Scattered–Extended (etwa in der Klassifikation der Deep Ecliptic Survey) bezeichnet.[5] Dies spiegelt die dynamische Unetscheiden wider, die zwischen den Orbitalparametern der Scattered Disk Objects und der Detached Objects besteht.

    Mindestens neun Objekte wurden sicher als Detached Objects identifiziert,[6] von denen der größte, am weitesten entfernte und bekannteste (90377) Sedna, ein Zwergplanetenkandidat, ist. Astronomische Objekte mit einem Perihel von über 50 Astronomischen Einheiten werden als Sednoide bezeichnet. Zusätzlich zu (90377) Sedna sind zwei weitere Sednoide bekannt: 2012 VP113 und (541132) Leleākūhonua.

    Umlaufbahnen

    Detached Objects weisen Perihele (sonnennächster Punkt) auf, die größer sind als das Aphel (sonnenentferntester Punkt) Neptuns (des äußersten Planeten). Ihre Bahnen sind oft stark exzentrische mit Großen Halbachsen von bis zu einigen hundert Astronomischen Einheiten (eine Astronomische Einheit ist die durchschnittliche Entfernung der Erde zur Sonne). Ihre Umlaufbahnen können nicht durch Bahnstörungen der Gasplaneten erzeugt worden sein, nicht einmal durch den von ihnen aus nächsten Planeten, Neptun. Es werden eine Reihe von Möglichkeiten in Betracht gezogen, darunter die Begegnung mit einem nahe vorbeifliegenden Stern[7], einem Planeten im Kuipergürtel (Planet Neun)[4], möglicherweise Neptun, wenn er früher eine viel exzentrischere Umlaufbahn hatte, von der aus er Objekte in ihre aktuelle Umlaufbahn gezogen haben könnte)[8][9][10][11][12] Eine weitere Entstehungsmöglichkeit ist, dass früher vorhandene Planeten, die einen gravitativen Einfluss auf Detached Objects hatten, später zu Einzelgänger-Planeten wurden.[13][14][15]

    Die Theorie der Existenz von Planet Neun legt nahe, dass die Umlaufbahnen mehrerer Detached Objects durch den Gravitationseinfluss eines großen, nicht bekannten Planeten zwischen 200 und 1200 Astronomischen Einheiten und 1200 und/oder den Einfluss von Neptun erklärt werden können.[16]

    Classification

    Vorlage:TNO

    Detached objects are one of five distinct dynamical classes of TNO; the other four classes are classical Kuiper-belt objects, resonant objects, scattered-disc objects (SDO), and sednoids. Detached objects generally have a perihelion distance greater than 40 AU, deterring strong interactions with Neptune, which has an approximately circular orbit about 30 AU from the Sun. However, there are no clear boundaries between the scattered and detached regions, since both can coexist as TNOs in an intermediate region with perihelion distance between 37 and 40 AU.[6] One such intermediate body with a well determined orbit is (120132) 2003 FY128.

    The discovery of 90377 Sedna in 2003, together with a few other objects discovered around that time such as (148209) 2000 CR105 and 2004 XR190, has motivated discussion of a category of distant objects that may also be inner Oort cloud objects or (more likely) transitional objects between the scattered disc and the inner Oort cloud.[2]

    Although Sedna is officially considered a scattered-disc object by the MPC, its discoverer Michael E. Brown has suggested that because its perihelion distance of 76 AU is too distant to be affected by the gravitational attraction of the outer planets it should be considered an inner-Oort-cloud object rather than a member of the scattered disc.[17] This classification of Sedna as a detached object is accepted in recent publications.[18]

    This line of thinking suggests that the lack of a significant gravitational interaction with the outer planets creates an extended–outer group starting somewhere between Sedna (perihelion 76 AU) and more conventional SDOs like Vorlage:Mpl- (perihelion 35 AU), which is listed as a scattered–near object by the Deep Ecliptic Survey.[19]

    Influence of Neptune

    One of the problems with defining this extended category is that weak resonances may exist and would be difficult to prove due to chaotic planetary perturbations and the current lack of knowledge of the orbits of these distant objects. They have orbital periods of more than 300 years and most have only been observed over a short observation arc of a couple years. Due to their great distance and slow movement against background stars, it may be decades before most of these distant orbits are determined well enough to confidently confirm or rule out a resonance. Further improvement in the orbit and potential resonance of these objects will help to understand the migration of the giant planets and the formation of the Solar System. For example, simulations by Emel’yanenko and Kiseleva in 2007 show that many distant objects could be in resonance with Neptune. They show a 10% likelihood that 2000 CR105 is in a 20:1 resonance, a 38% likelihood that 2003 QK91 is in a 10:3 resonance, and an 84% likelihood that (82075) 2000 YW134 is in an 8:3 resonance.[20] The likely dwarf planet (145480) 2005 TB190 appears to have less than a 1% likelihood of being in a 4:1 resonance.[20]

    Influence of hypothetical planet(s) beyond Neptune

    Mike Brown—who made the Planet Nine hypothesis—makes an observation that "all of the known distant objects which are pulled even a little bit away from the Kuiper seem to be clustered under the influence of this hypothetical planet (specifically, objects with semimajor axis > 100 AU and perihelion > 42 AU)."[21] Carlos de la Fuente Marcos and Ralph de la Fuente Marcos have calculated that some of the statistically significant commensurabilities are compatible with the Planet Nine hypothesis; in particular, a number of objectsVorlage:Efn which are called Extreme trans Neptunian objects (ETNOs).[22] may be trapped in the 5:3 and 3:1 mean-motion resonances with a putative Planet Nine with a semimajor axis ∼700 AU.[23]

    Possible detached objects

    Vorlage:See also

    This is a list of known objects by decreasing perihelion, that could not be easily scattered by Neptune's current orbit and therefore are likely to be detached objects, but that lie inside the perihelion gap of ≈50–75 AU that defines the sednoids:[24][25][26][27][28][29]

    Objects listed below have a perihelion of more than 40 AU, and a semimajor axis of more than 47.7 AU (the 1:2 resonance with Neptune, and the approximate outer limit of the Kuiper Belt) [30]

    Designation Diameter [31]
    (km)     		H q
    (AU)     		a
    (AU)     		Q
    (AU)     		ω (°) Discovery
    Year     		Discoverer Notes & Refs
    Vorlage:Mpl- 243 6.3 44.252 221.2 398 316.93 2000 M. W. Buie [32]
    Vorlage:Mpl- 216 4.7 41.207 57.795 74.383 316.481 2000 Spacewatch ≈3:8 Neptune resonance
    2001 FL193 81 8.7 40.29 50.26 60.23 108.6 2001 R. L. Allen, G. Bernstein, R. Malhotra orbit extremely poor, might not be a TNO
    2001 KA77 634 5.0 43.41 47.74 52.07 120.3 2001 M. W. Buie borderline classical KBO
    2002 CP154 222 6.5 42 52 62 50 2002 M. W. Buie orbit fairly poor, but definitely a detached object
    2003 UY291 147 7.4 41.19 48.95 56.72 15.6 2003 M. W. Buie borderline classical KBO
    Sedna 995 1.5 76.072 483.3 890 311.61 2003 M. E. Brown, C. A. Trujillo, D. L. Rabinowitz Sednoid
    2004 PD112 267 6.1 40 70 90 40 2004 M. W. Buie orbit very poor, might not be a detached object
    Vorlage:Mpl- 222 6.5 47.308 315 584 326.925 2004 Cerro Tololo (unspecified) [33][34][35]
    2004 XR190 612 4.1 51.085 57.336 63.586 284.93 2004 R. L. Allen, B. J. Gladman, J. J. Kavelaars
    J.-M. Petit, J. W. Parker, P. Nicholson     		pseudo-Sednoid, very high inclination; Neptune Mean Motion Resonance (MMR) along with the Kozai Resonance (KR) modified the eccentricity and inclination of 2004 XR190 to obtain a very high perihelion[32][36][37]
    2005 CG81 267 6.1 41.03 54.10 67.18 57.12 2005 CFEPS —
    Vorlage:Mpl- 161 7.2 41.215 62.98 84.75 349.86 2005 M. W. Buie —
    Vorlage:Mpl- 372 4.5 46.197 75.546 104.896 171.023 2005 A. C. Becker, A. W. Puckett, J. M. Kubica Neptune Mean Motion Resonance (MMR) along with the Kozai Resonance (KR) modified the eccentricity and inclination to obtain a high perihelion[37]
    2006 AO101 168 7.1 -- -- -- -- 2006 Mauna Kea (unspecified) orbit extremely poor, might not be a TNO
    Vorlage:Mpl- 558 4.5 40.383 48.390 56.397 6.536 2007 Palomar (unspecified) borderline classical KBO
    2007 LE38 176 7.0 41.798 54.56 67.32 53.96 2007 Mauna Kea (unspecified) —
    2008 ST291 640 4.2 42.27 99.3 156.4 324.37 2008 M. E. Schwamb, M. E. Brown, D. L. Rabinowitz ≈1:6 Neptune resonance
    2009 KX36 111 8.0 -- 100 100 -- 2009 Mauna Kea (unspecified) orbit extremely poor, might not be a TNO
    Vorlage:Mpl- 486 4.7 45.102 55.501 65.90 33.01 2010 Pan-STARRS ≈2:5 Neptune resonance; Neptune Mean Motion Resonance (MMR) along with the Kozai Resonance (KR) modified the eccentricity and inclination to obtain a high perihelion[37]
    2010 ER65 404 5.0 40.035 99.71 159.39 324.19 2010 D. L. Rabinowitz, S. W. Tourtellotte —
    2010 GB174 222 6.5 48.8 360 670 347.7 2010 Mauna Kea (unspecified) —
    2012 FH84 161 7.2 42 56 70 10 2012 Las Campanas (unspecified) —
    2012 VP113 702 4.0 80.47 256 431 293.8 2012 S. S. Sheppard, C. A. Trujillo Sednoid
    2013 FQ28 280 6.0 45.9 63.1 80.3 230 2013 S. S. Sheppard, C. A. Trujillo ≈1:3 Neptune resonance; Neptune Mean Motion Resonance (MMR) along with the Kozai Resonance (KR) modified the eccentricity and inclination to obtain a high perihelion[37]
    2013 FT28 202 6.7 43.5 310 580 40.3 2013 S. S. Sheppard —
    Vorlage:Mpl- 212 6.6 41.061 155.1 269.1 42.38 2013 OSSOS —
    2013 GQ136 222 6.5 40.79 49.06 57.33 155.3 2013 OSSOS borderline classical KBO
    2013 GG138 212 6.6 46.64 47.792 48.946 128 2013 OSSOS borderline classical KBO
    Vorlage:Mpl- 111 8.0 42.603 73.12 103.63 178.0 2013 OSSOS —
    Vorlage:Mpl- 147 7.4 44.04 48.158 52.272 179.8 2013 OSSOS borderline classical KBO
    2013 SY99 202 6.7 50.02 694 1338 32.1 2013 OSSOS —
    2013 SK100 134 7.6 45.468 61.61 77.76 11.5 2013 OSSOS —
    Vorlage:Mpl- 255 6.3 43.89 195.7 348 252.33 2013 OSSOS —
    2013 UB17 176 7.0 44.49 62.31 80.13 308.93 2013 OSSOS —
    2013 VD24 128 7.8 40 50 70 197 2013 Dark Energy Survey orbit very poor, might not be a detached object
    2013 YJ151 336 5.4 40.866 72.35 103.83 141.83 2013 Pan-STARRS —
    2014 EZ51 770 3.7 40.70 52.49 64.28 329.84 2014 Pan-STARRS —
    2014 FC69 533 4.6 40.28 73.06 105.8 190.57 2014 S. S. Sheppard, C. A. Trujillo
    2014 FZ71 185 6.9 55.9 76.2 96.5 245 2014 S. S. Sheppard, C. A. Trujillo pseudo-Sednoid; ≈1:4 Neptune resonance; Neptune Mean Motion Resonance (MMR) along with the Kozai Resonance (KR) modified the eccentricity and inclination to obtain a very high perihelion[37]
    2014 FC72 509 4.5 51.670 76.329 100.99 32.85 2014 Pan-STARRS pseudo-Sednoid; ≈1:4 Neptune resonance; Neptune Mean Motion Resonance (MMR) along with the Kozai Resonance (KR) modified the eccentricity and inclination to obtain a very high perihelion[37]
    2014 JM80 352 5.5 46.00 63.00 80.01 96.1 2014 Pan-STARRS ≈1:3 Neptune resonance; Neptune Mean Motion Resonance (MMR) along with the Kozai Resonance (KR) modified the eccentricity and inclination to obtain a high perihelion[37]
    2014 JS80 306 5.5 40.013 48.291 56.569 174.5 2014 Pan-STARRS borderline classical KBO
    2014 OJ394 423 5.0 40.80 52.97 65.14 271.60 2014 Pan-STARRS in 3:7 Neptune resonance
    2014 QR441 193 6.8 42.6 67.8 93.0 283 2014 Dark Energy Survey —
    2014 SR349 202 6.6 47.6 300 540 341.1 2014 S. S. Sheppard, C. A. Trujillo —
    2014 SS349 134 7.6 45 140 240 148 2014 S. S. Sheppard, C. A. Trujillo ≈2:10 Neptune resonance; Neptune Mean Motion Resonance (MMR) along with the Kozai Resonance (KR) modified the eccentricity and inclination to obtain a high perihelion[38]
    2014 ST373 330 5.5 50.13 104.0 157.8 297.52 2014 Dark Energy Survey —
    2014 UT228 154 7.3 43.97 48.593 53.216 49.9 2014 OSSOS borderline classical KBO
    2014 UA230 222 6.5 42.27 55.05 67.84 132.8 2014 OSSOS —
    2014 UO231 97 8.3 42.25 55.11 67.98 234.56 2014 OSSOS —
    2014 WK509 584 4.0 40.08 50.79 61.50 135.4 2014 Pan-STARRS —
    2014 WB556 147 7.4 42.6 280 520 234 2014 Dark Energy Survey —
    2015 AL281 293 6.1 42 48 54 120 2015 Pan-STARRS borderline classical KBO
    orbit very poor, might not be a detached object
    Vorlage:Mpl- 486 4.8 41.380 55.372 69.364 157.72 2015 Pan-STARRS —
    Vorlage:Mpl- 352 5.5 44.82 47.866 50.909 293.2 2015 Pan-STARRS borderline classical KBO
    2015 FJ345 117 7.9 51 63.0 75.2 78 2015 S. S. Sheppard, C. A. Trujillo pseudo-Sednoid; ≈1:3 Neptune resonance; Neptune Mean Motion Resonance (MMR) along with the Kozai Resonance (KR) modified the eccentricity and inclination to obtain a very high perihelion[37]
    2015 GP50 222 6.5 40.4 55.2 70.0 130 2015 S. S. Sheppard, C. A. Trujillo —
    2015 KH162 671 3.9 41.63 62.29 82.95 296.805 2015 S. S. Sheppard, D. J. Tholen, C. A. Trujillo —
    2015 KG163 101 8.3 40.502 826 1610 32.06 2015 OSSOS —
    2015 KH163 117 7.9 40.06 157.2 274 230.29 2015 OSSOS ≈1:12 Neptune resonance
    2015 KE172 106 8.1 44.137 133.12 222.1 15.43 2015 OSSOS 1:9 Neptune resonance
    2015 KG172 280 6.0 42 55 69 35 2015 R. L. Allen
    D. James
    D. Herrera     		orbit fairly poor, might not be a detached object
    2015 KQ174 154 7.3 49.31 55.40 61.48 294.0 2015 Mauna Kea (unspecified) pseudo-Sednoid; ≈2:5 Neptune resonance; Neptune Mean Motion Resonance (MMR) along with the Kozai Resonance (KR) modified the eccentricity and inclination to obtain a very high perihelion[37]
    2015 RX245 255 6.2 45.5 410 780 65.3 2015 OSSOS —
    Leleākūhonua 300 5.5 65.02 1042 2019 118.0 2015 S. S. Sheppard, C. A. Trujillo, D. J. Tholen Sednoid
    2017 DP121 161 7.2 40.52 50.48 60.45 217.9 2017 —
    2017 FP161 168 7.1 40.88 47.99 55.1 218 2017 borderline classical KBO
    2017 SN132 97 5.8 40.949 79.868 118.786 148.769 2017 S. S. Sheppard, C. A. Trujillo, D. J. Tholen
    2018 VM35 134 7.6 45.289 240.575 435.861 302.008 2018 ???

    The following objects can also be generally thought to be detached objects, although with slightly lower perihelion distances of 38-40 AU.

    Designation Diameter [31]
    (km)     		H q
    (AU)     		a
    (AU)     		Q
    (AU)     		ω (°) Discovery
    Year     		Discoverer Notes & Refs
    Vorlage:Mpl- 147 7.4 38.116 166.2 294 11.082 2003 Mauna Kea (unspecified) —
    2003 SS422 168 >7.1 39 200 400 210 2003 Cerro Tololo (unspecified) orbit very poor, might not be a detached object
    2005 RH52 128 7.8 38.957 152.6 266.3 32.285 2005 CFEPS —
    2007 TC434 168 7.0 39.577 128.41 217.23 351.010 2007 Las Campanas (unspecified) 1:9 Neptune resonance
    2012 FL84 212 6.6 38.607 106.25 173.89 141.866 2012 Pan-STARRS —
    2014 FL72 193 6.8 38.1 104 170 259.49 2014 Cerro Tololo (unspecified) —
    2014 JW80 352 5.5 38.161 142.62 247.1 131.61 2014 Pan-STARRS —
    Vorlage:Mpl- 293 5.6 38.972 120.52 202.1 169.31 2014 Pan-STARRS —
    2015 GT50 88 8.6 38.46 333 627 129.3 2015 OSSOS —

    See also

    Notes

    Vorlage:Notelist


    References

    Vorlage:Reflist

    Vorlage:Dwarf planets Vorlage:Small Solar System bodies Vorlage:Solar System

    Vorlage:Good article [[Category:Scattered disc and detached objects| ]] [[Category:Oort cloud]]

    1. ↑ Patryk Sofia Lykawka, Tadashi Mukai: An outer planet beyond Pluto and the origin of the trans-Neptunian belt architecture. In: Astronomical Journal. 135. Jahrgang, Nr. 4, 2008, S. 1161–1200, doi:10.1088/0004-6256/135/4/1161, arxiv:0712.2198, bibcode:2008AJ....135.1161L.
    2. ↑ a b D. Jewitt, A. Delsanti: Solar System Update: Topical and Timely Reviews in Solar System Sciences. Springer-Praxis Auflage. 2006 (ifa.hawaii.edu (Memento des Originals vom 29. Januar 2007 im Internet Archive)).
    3. ↑ Brett Gladman: Evidence for an extended scattered disk. In: Icarus. 157. Jahrgang, Nr. 2, 2002, S. 269–279, doi:10.1006/icar.2002.6860, arxiv:astro-ph/0103435, bibcode:2002Icar..157..269G.
    4. ↑ a b Rodney S. Gomes, J. Matese, Jack Lissauer: A distant planetary-mass solar companion may have produced distant detached objects. In: Icarus. 184. Jahrgang, Nr. 2. Elsevier, 2006, S. 589–601, doi:10.1016/j.icarus.2006.05.026, bibcode:2006Icar..184..589G.
    5. ↑ James Ludlow Elliot, Susan D. Kern, K. B. Clancy, A. A. S. Gulbis, Robert L. Millis, Marc William Buie, Lawrence H. Wasserman, Eugene I. Chiang, Amy B. Jordan, David E. Trilling, Karen Jean Meech: The Deep Ecliptic Survey: A search for Kuiper belt objects and centaurs. II. Dynamical classification, the Kuiper belt plane, and the core population. In: The Astronomical Journal. 129. Jahrgang, Nr. 2, 2006, S. 1117–1162, doi:10.1086/427395, bibcode:2005AJ....129.1117E (mit.edu [PDF]).
    6. ↑ a b Patryk Sofia Lykawka, Tadashi Mukai: Dynamical classification of trans-neptunian objects: Probing their origin, evolution, and interrelation. In: Icarus. 189. Jahrgang, Nr. 1, Juli 2007, S. 213–232, doi:10.1016/j.icarus.2007.01.001, bibcode:2007Icar..189..213L.
    7. ↑ Alessandro Morbidelli, Harold F. Levison: Scenarios for the Origin of the Orbits of the Trans-Neptunian Objects (148209) 2000 CR105 and (90377) Sedna. In: The Astronomical Journal. 128. Jahrgang, Nr. 5, November 2004, S. 2564–2576, doi:10.1086/424617, arxiv:astro-aph/0403358, bibcode:2004AJ....128.2564M.
    8. ↑ Brett Gladman, Matthew J. Holman, Tommy Grav, John J. Kavelaars, Martin P Nicholson, Kaare Aksnes , Jean-Marc Petit: Evidence for an extended scattered disk. In: Icarus. 157. Jahrgang, Nr. 2, 2002, S. 269–279, doi:10.1006/icar.2002.6860, arxiv:astro-ph/0103435, bibcode:2002Icar..157..269G.
    9. ↑ Mankind's Explanation: 12th Planet.
    10. ↑ A comet’s odd orbit hints at hidden planet.
    11. ↑ Is There a Large Planet Orbiting Beyond Neptune?
    12. ↑ Signs of a Hidden Planet?
    13. ↑ Phil Mozel: Brett Gladman. In: Journal of the Royal Astronomical Society of Canada (= A moment with …). 105. Jahrgang, Nr. 2, 2011, S. 77, bibcode:2011JRASC.105...77M.
    14. ↑ Brett Gladman, Collin Chan: Production of the Extended Scattered Disk by Rogue Planets. In: The Astrophysical Journal. 643. Jahrgang, Nr. 2, 2006, S. L135–L138, doi:10.1086/505214, bibcode:2006ApJ...643L.135G.
    15. ↑ The long and winding history of Planet X.
    16. ↑ Konstantin Jurjewitsch Batygin, Michael E. Brown: Evidence for a distant giant planet in the Solar system. In: Astronomical Journal. 151. Jahrgang, Nr. 2, S. 22, doi:10.3847/0004-6256/151/2/22, arxiv:1601.05438, bibcode:2016AJ....151...22B.
    17. ↑ Michael E. Brown: Sedna (The coldest most distant place known in the solar system; possibly the first object in the long-hypothesized Oort cloud). California Institute of Technology, Department of Geological Sciences, abgerufen am 2. Juli 2008.
    18. ↑ D. Jewitt, A. Moro-Martın, P. Lacerda: Astrophysics in the Next Decade. Springer Verlag, 2009 (hawaii.edu [PDF]).
    19. ↑ Buie, Marc W.: Orbit fit and astrometric record for 15874. SwRI, 28. Dezember 2007, abgerufen am 12. November 2011.
    20. ↑ a b V.V. Emel’yanenko: Resonant motion of trans-Neptunian objects in high-eccentricity orbits. In: Astronomy Letters. 34. Jahrgang, Nr. 4, 2008, S. 271–279, doi:10.1134/S1063773708040075, bibcode:2008AstL...34..271E.(subscription required)
    21. ↑ Mike Brown: Why I believe in Planet Nine.
    22. ↑ C. de la Fuente Marcos, R. de la Fuente Marcos: Extreme trans-Neptunian objects and the Kozai mechanism: Signalling the presence of trans-Plutonian planets. In: Monthly Notices of the Royal Astronomical Society. 443. Jahrgang, Nr. 1, 1. September 2014, S. L59–L63, doi:10.1093/mnrasl/slu084, arxiv:1406.0715, bibcode:2014MNRAS.443L..59D.
    23. ↑ Carlos de la Fuente Marcos, Raúl de la Fuente Marcos: Commensurabilities between ETNOs: a Monte Carlo survey. In: Monthly Notices of the Royal Astronomical Society: Letters. 460. Jahrgang, Nr. 1, 21. Juli 2016, S. L64–L68, doi:10.1093/mnrasl/slw077, arxiv:1604.05881, bibcode:2016MNRAS.460L..64D (oxfordjournals.org).
    24. ↑ Michael E. Brown: How many dwarf planets are there in the outer solar system? (updates daily). California Institute of Technology, 10. September 2013, archiviert vom Original am 18. Oktober 2011; abgerufen am 27. Mai 2013: „Diameter: 242km“
    25. ↑ objects with perihelia between 40–55 AU and aphelion more than 60 AU.
    26. ↑ objects with perihelia between 40–55 AU and aphelion more than 100 AU.
    27. ↑ objects with perihelia between 40–55 AU and semi-major axis more than 50 AU.
    28. ↑ objects with perihelia between 40–55 AU and eccentricity more than 0.5.
    29. ↑ objects with perihelia between 37–40 AU and eccentricity more than 0.5.
    30. ↑ MPC list of q > 40 and a > 47.7. Minor Planet Center, abgerufen am 7. Mai 2018.
    31. ↑ a b Referenzfehler: Ungültiges <ref>-Tag; kein Text angegeben für Einzelnachweis mit dem Namen johnstonsarchive.
    32. ↑ a b E. L. Schaller, M. E. Brown: Volatile loss and retention on Kuiper belt objects. In: Astrophysical Journal. 659. Jahrgang, Nr. 1, 2007, S. I.61–I.64, doi:10.1086/516709, bibcode:2007ApJ...659L..61S (caltech.edu [PDF; abgerufen am 2. April 2008]).
    33. ↑ Marc W. Buie: Orbit Fit and Astrometric record for 04VN112. SwRI (Space Science Department), 8. November 2007, archiviert vom Original am 18. August 2010; abgerufen am 17. Juli 2008.
    34. ↑ JPL Small-Body Database Browser: (2004 VN112). Abgerufen am 24. Februar 2015.
    35. ↑ List Of Centaurs and Scattered-Disk Objects. Abgerufen am 5. Juli 2011: „Discoverer: CTIO“
    36. ↑ R. L. Allen, B. Gladman: Discovery of a low-eccentricity, high-inclination Kuiper Belt object at 58 AU. In: The Astrophysical Journal. 640. Jahrgang, Nr. 1, 2006, S. L83–L86, doi:10.1086/503098, arxiv:astro-ph/0512430, bibcode:2006ApJ...640L..83A.
    37. ↑ a b c d e f g h i Scott S. Sheppard, Chadwick Trujillo, David J. Tholen: Beyond the Kuiper Belt Edge: New High Perihelion Trans-Neptunian Objects with Moderate Semimajor Axes and Eccentricities. In: The Astrophysical Journal Letters. 825. Jahrgang, Nr. 1, Juli 2016, S. L13, doi:10.3847/2041-8205/825/1/L13, arxiv:1606.02294, bibcode:2016ApJ...825L..13S.
    38. ↑ Scott S. Sheppard, Chad Trujillo: New Extreme Trans-Neptunian Objects: Towards a Super-Earth in the Outer Solar System. In: Astrophysical Journal. 152. Jahrgang, Nr. 6, August 2016, S. 221, doi:10.3847/1538-3881/152/6/221, arxiv:1608.08772, bibcode:2016AJ....152..221S.
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