List of possible dwarf planets

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Some of the possible dwarf planets

There are many possible dwarf planets in the Solar System. Scientists do not know how many there are exactly. They say there may be up to 200 in the Kuiper Belt.[1] They also say there may be over 10,000 beyond this.[2]

List of possible dwarf planets[change | change source]

Designation Measured mean
diameter (km) 		Density
(g/cm3) 		Albedo Identified as a dwarf planet Category
by Emery
et al.[3] 		by Grundy
et al.[4] 		by Brown[5] by Tancredi
et al.[6] 		by the IAU
N I Triton 2707±2 2.06 0.60 to 0.95 (likely in equilibrium)[7] (moon of Neptune)
134340 Pluto 2376±3 1.854±0.006 0.49 to 0.66 Yes Yes Yes Yes Yes 2:3 resonant
136199 Eris 2326±12 2.43±0.05 0.96 Yes Yes Yes Yes Yes SDO
136108 Haumea ≈ 1560 ≈ 2.018 0.51 Yes Yes Yes Yes Yes
(naming rules)		 resonant cubewano
136472 Makemake 1430+38
−22		 1.9±0.2 0.81 Yes Yes Yes Yes Yes
(naming rules)		 hot cubewano
225088 Gonggong 1230±50 1.74±0.16 0.14 Yes Yes Yes N/A 3:10 resonant
P I Charon 1212±1 1.70±0.02 0.2 to 0.5 (possibly in equilibrium)[8] (moon of Pluto)
50000 Quaoar 1086±4 ≈ 1.7 0.11 Yes Yes Yes Yes Yes
{{small|(2022–2023 annual report)[9]		 hot cubewano
1 Ceres 946±2 2.16±0.01 0.09 (close to equilibrium)[10] Yes asteroid
90482 Orcus 910+50
−40		 1.4±0.2 0.23 Maybe Yes Yes Yes plutino (2:3 resonant)
90377 Sedna 906+314
−258		 ? 0.41 Yes Yes Yes Yes detached
120347 Salacia 846±21 1.5±0.12 0.04 No Maybe Yes Maybe hot cubewano
(307261) 2002 MS4 796±24 ? 0.10 No No? Yes N/A hot cubewano
(55565) 2002 AW197 768±39 ? 0.11 No No? "highly likely" Yes hot cubewano
174567 Varda 749±18 1.78±0.06? or
1.23±0.04?		 0.10 No Maybe "highly likely" Maybe 4:7 resonant
(532037) 2013 FY27 742+78
−83		 ? 0.17 No No? "highly likely" N/A SDO
(208996) 2003 AZ84 723 or 772±12 0.76 0.10 No No "highly likely" Yes plutino (2:3 resonant)
28978 Ixion 710±0.2 ? 0.10 No No? "highly likely" Yes plutino (2:3 resonant)
(145452) 2005 RN43 679+55
−73		 ? 0.107+0.029
−0.018		 No No? "highly likely" Maybe hot cubewano
(55637) 2002 UX25 665±29 or 659±38 0.82±0.11 0.107+0.005
−0.008 or 0.1±0.01		 No No "highly likely" N/A hot cubewano
2018 VG18 656 or 500 ? 0.12 No No? "highly likely" N/A SDO
20000 Varuna 654+154
−102 or 668+154
−86		 ? 0.127+0.04
−0.042		 No No? "highly likely" Yes hot cubewano
229762 G!kún‖’hòmdímà 642±28 or 638+24
−12		 1.04±0.17 0.142±0.015 No No "highly likely" N/A SDO
2014 UZ224 635+65
−72		 ? 0.131+0.038
−0.028		 No No? "highly likely" N/A SDO
19521 Chaos 612 or 600+140
−130		 ? 0.050+0.030
−0.016		 No No? "highly likely" N/A hot cubewano
2012 VP113 574? ? 0.09 assumed No No? "likely" N/A detached
(528381) 2008 ST291 549 or 584 ? 0.09 assumed No No? "likely" N/A 1:6 resonant SDO
(523794) 2015 RR245 ≈500 ? 0.11 assumed No No? "highly likely" N/A Maybe
(claimed without citation by AGU)[11]		 SDO
38628 Huya 411±7.3 0.8 0.081 No No "probably" Yes plutino (2:3 resonant)
(15874) 1996 TL66 339±20 or 575±115 ? 0.110+0.021
−0.015		 No No "possibly" Yes SDO

References[change | change source]

  1. ↑ Brown, Mike. "The Dwarf Planets". Retrieved 20 January 2008.
  2. ↑ Stern, Alan (24 August 2012). "The Kuiper Belt at 20: Paradigm Changes in Our Knowledge of the Solar System". Applied Physics Laboratory. Retrieved 4 May 2024.
  3. ↑ J.P. Emery, I. Wong, R. Brunetto, J.C. Cook, N. Pinilla-Alonso, J.A. Stansberry, B.J. Holler, W.M. Grundy, S. Protopapa, A.C. Souza-Feliciano, E. Fernández-Valenzuela, J.I. Lunine, D.C. Hines (29 February 2024). "A Tale of 3 Dwarf Planets: Ices and Organics on Sedna, Gonggong, and Quaoar from JWST Spectroscopy". Retrieved 4 May 2024.{{cite web}}: CS1 maint: multiple names: authors list (link)
  4. ↑ Grundy, W.M.; Noll, K.S.; Buie, M.W.; Benecchi, S.D.; Ragozzine, D.; Roe, H.G. (December 2019). "The mutual orbit, mass, and density of transneptunian binary Gǃkúnǁʼhòmdímà ((229762) 2007 UK126)" (PDF). Icarus. 334: 30–38. doi:10.1016/j.icarus.2018.12.037. S2CID 126574999. Archived (PDF) from the original on 2019-04-07.
  5. ↑ Grundy, W.M.; Noll, K.S.; Roe, H.G.; Buie, M.W.; Porter, S.B.; Parker, A.H.; et al. (December 2019). "Mutual orbit orientations of transneptunian binaries" (PDF). Icarus. 334: 62–78. Bibcode:2019Icar..334...62G. doi:10.1016/j.icarus.2019.03.035. S2CID 133585837. Archived from the original (PDF) on 7 April 2019.
  6. ↑ Tancredi, G. (2010). "Physical and dynamical characteristics of icy "dwarf planets" (plutoids)". Icy Bodies of the Solar System: Proceedings IAU Symposium No. 263, 2009. 263: 173–185. Bibcode:2010IAUS..263..173T. doi:10.1017/S1743921310001717.
  7. ↑ Thomas, P.C. (December 2000). "The Shape of Triton from Limb Profiles". Icarus. 148 (2): 587–588. Bibcode:2000Icar..148..587T. doi:10.1006/icar.2000.6511.
  8. ↑ Kholshevnikovab, K.V.; Borukhaa, M.A.; Eskina, B.B.; Mikryukov, D.V. (23 October 2019). "On the asphericity of the figures of Pluto and Charon". Icarus. 181: 104777. doi:10.1016/j.pss.2019.104777. S2CID 209958465.
  9. ↑ "Report of Division F "Planetary Systems and Astrobiology": Annual Report 2022-23" (PDF). International Astronomical Union. 2022–2023. Retrieved 8 December 2023.
  10. ↑ Raymond, C.; Castillo-Rogez, J.C.; Park, R.S.; Ermakov, A.; et al. (September 2018). "Dawn Data Reveal Ceres' Complex Crustal Evolution" (PDF). European Planetary Science Congress. Vol. 12.
  11. ↑ "Six Things Dwarf Planets Have Taught Us About the Solar System". JoAnna Wendel. American Geophysical Union. 27 January 2024.
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