해왕성 바깥 행성 (Korean Wikipedia)

Analysis of information sources in references of the Wikipedia article "해왕성 바깥 행성" in Korean language version.

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aanda.org (Global: 5,591^st place; Korean: 2,411^th place)

de la Fuente Marcos, C.; de la Fuente Marcos, R. (2021년 2월 18일). “Memories of past close encounters in extreme trans-Neptunian space: Finding unseen planets using pure random searches”. 《Astronomy and Astrophysics Letters》 646: L14 (9 pp). arXiv:2102.02220. Bibcode:2021A&A...646L..14D. doi:10.1051/0004-6361/202140311. S2CID 231802033.

allesoversterrenkunde.nl (Global: low place; Korean: low place)

Schilling, Govert (11 January 2008). “The mystery of Planet X”. 《New Scientist》. 30–33면. 25 June 2008에 확인함.

archive.org (Global: 6^th place; Korean: 18^th place)

Tom Standage (2000). 《The Neptune File: A Story of Astronomical Rivalry and the Pioneers of Planet Hunting》. New York: Walker. 188쪽. ISBN 978-0802713636.
Ley, Willy (August 1956). “The Demotion of Pluto”. For Your Information. 《Galaxy Science Fiction》. 79–91쪽.
Dennis Rawlins (1973). “Mass and Position Limits for an Hypothetical Tenth Planet of the Solar System”. 《Monthly Notices of the Royal Astronomical Society》 162 (3): 261–270. Bibcode:1973MNRAS.162..261R. doi:10.1093/mnras/162.3.261. Rawlins also took into account Pluto's stellar occultation failure as reported by Halliday, I.; Hardie, R.; Franz, O.; Priser, J. (1966). “An upper limit for the diameter of Pluto”. 《Publications of the Astronomical Society of the Pacific》 78 (461): 113–124. Bibcode:1966PASP...78..113H. doi:10.1086/128307. S2CID 121483531.
“Pluto: Evidence for methane frost”. 《Science》 194 (4267): 835–837. 1976. doi:10.1126/science.194.4267.835-a. PMID 17744185.
Tom Standage (2000). 《The Neptune File》. Penguin. 168쪽. ISBN 978-0802713636.

arizona.edu (Global: 1,592^nd place; Korean: 746^th place)

lpl.arizona.edu

Renu Malhotra (1998). “Orbital Resonances and Chaos in the Solar System” (PDF). 《Solar System Formation and Evolution ASP Conference Series》 149: 37. Bibcode:1998ASPC..149...37M.

arm.ac.uk (Global: low place; Korean: low place)

J. K. Davies; J. McFarland; M. E. Bailey; B. G. Marsden 외 (2008). 〈The Early Development of Ideas Concerning the Transneptunian Region〉 (PDF). M. Antonietta Baracci; Hermann Boenhardt; Dale Cruikchank; Alissandro Morbidelli (편집). 《The Solar System Beyond Neptune》. University of Arizona Press. 11–23쪽. 2015년 2월 20일에 원본 문서 (PDF)에서 보존된 문서. 2014년 11월 5일에 확인함.

arxiv.org (Global: 69^th place; Korean: 54^th place)

Batygin, Konstantin; Brown, Michael E. (2016년 1월 20일). “Evidence for a distant giant planet in the Solar system”. 《The Astronomical Journal》 151 (2): 22. arXiv:1601.05438. Bibcode:2016AJ....151...22B. doi:10.3847/0004-6256/151/2/22. S2CID 2701020.
Millholland, Sarah; Laughlin, Gregory (2017). “Constraints on Planet Nine's Orbit and Sky Position within a Framework of Mean Motion Resonances”. 《The Astronomical Journal》 153 (3): 91. arXiv:1612.07774. Bibcode:2017AJ....153...91M. doi:10.3847/1538-3881/153/3/91. S2CID 119325788.
Marc W. Buie; William M. Grundy; Eliot F. Young (July 2006). “Orbits and photometry of Pluto's satellites: Charon, S/2005 P1, and S/2005 P2”. 《Astronomical Journal》 132 (1): 290–298. arXiv:astro-ph/0512491. Bibcode:2006AJ....132..290B. doi:10.1086/504422. S2CID 119386667.
J. Horner; N. W. Evans (September 2002). “Biases in cometary catalogues and Planet X”. 《Monthly Notices of the Royal Astronomical Society》 335 (3): 641–654. arXiv:astro-ph/0205150. Bibcode:2002MNRAS.335..641H. doi:10.1046/j.1365-8711.2002.05649.x. S2CID 17110153.
Brown, Mike; Rabinowitz, David; Trujillo, Chad (2004). “Discovery of a Candidate Inner Oort Cloud Planetoid”. 《Astrophysical Journal》 617 (1): 645–649. arXiv:astro-ph/0404456. Bibcode:2004ApJ...617..645B. doi:10.1086/422095. S2CID 7738201.
Patryk S., Lykawka; Tadashi, Mukai (2008). “An Outer Planet Beyond Pluto and the Origin of the Trans-Neptunian Belt Architecture”. 《The Astronomical Journal》 135 (4): 1161–1200. arXiv:0712.2198. Bibcode:2008AJ....135.1161L. doi:10.1088/0004-6256/135/4/1161. S2CID 118414447.
de la Fuente Marcos, C.; de la Fuente Marcos, R. (2014년 9월 1일). “Extreme trans-Neptunian objects and the Kozai mechanism: signalling the presence of trans-Plutonian planets”. 《Monthly Notices of the Royal Astronomical Society: Letters》 443 (1): L59–L63. arXiv:1406.0715. Bibcode:2014MNRAS.443L..59D. doi:10.1093/mnrasl/slu084. S2CID 118622180.
de la Fuente Marcos, Carlos; de la Fuente Marcos, Raúl (2016). “Commensurabilities between ETNOs: a Monte Carlo survey”. 《Monthly Notices of the Royal Astronomical Society Letters》 460 (1): L64–L68. arXiv:1604.05881. Bibcode:2016MNRAS.460L..64D. doi:10.1093/mnrasl/slw077. S2CID 119110892.
de la Fuente Marcos, Carlos; de la Fuente Marcos, Raúl (2017년 10월 11일). “Evidence for a possible bimodal distribution of the nodal distances of the extreme trans-Neptunian objects: avoiding a trans-Plutonian planet or just plain bias?”. 《Monthly Notices of the Royal Astronomical Society Letters》 471 (1): L61–L65. arXiv:1706.06981. Bibcode:2017MNRAS.471L..61D. doi:10.1093/mnrasl/slx106. S2CID 55469849.
de la Fuente Marcos, C.; de la Fuente Marcos, R. (2021년 2월 18일). “Memories of past close encounters in extreme trans-Neptunian space: Finding unseen planets using pure random searches”. 《Astronomy and Astrophysics Letters》 646: L14 (9 pp). arXiv:2102.02220. Bibcode:2021A&A...646L..14D. doi:10.1051/0004-6361/202140311. S2CID 231802033.
Brown, M.E.; Trujillo, C.; Rabinowitz, D. (2004). “Discovery of a candidate inner Oort Cloud planetoid”. 《Astrophysical Journal》 617 (1): 645–649. arXiv:astro-ph/0404456. Bibcode:2004ApJ...617..645B. doi:10.1086/422095. S2CID 7738201.
P.S. Lykawka; T. Mukai (2008). “An outer planet beyond Pluto and the origin of the trans-Neptunian belt architecture”. 《Astronomical Journal》 135 (4): 1161–1200. arXiv:0712.2198. Bibcode:2008AJ....135.1161L. doi:10.1088/0004-6256/135/4/1161. S2CID 118414447.
Volk, Kathryn; Malhotra, Renu (2017). “The curiously warped mean plane of the Kuiper belt”. 《The Astronomical Journal》 154 (2): 62. arXiv:1704.02444. Bibcode:2017AJ....154...62V. doi:10.3847/1538-3881/aa79ff. S2CID 5756310.
Iorio, Lorenzo (2017). “Is the recently proposed Mars-sized perturber at 65–80 AU ruled out by the Cassini ranging data?”. 《Frontiers in Astronomy and Space Sciences》 4: 28. arXiv:1407.5894. Bibcode:2017FrASS...4...28I. doi:10.3389/fspas.2017.00028. S2CID 26844167.
C. de la Fuente Marcos; R. de la Fuente Marcos (2024년 1월 1일). “Past the outer rim, into the unknown: structures beyond the Kuiper Cliff”. 《Monthly Notices of the Royal Astronomical Society Letters》 527 (1): L110–L114. arXiv:2309.03885. Bibcode:2024MNRAS.527L.110D. doi:10.1093/mnrasl/slad132. 2023년 9월 28일에 확인함.
Matese, John J.; Whitmire, Daniel P. (2011). “Persistent evidence of a jovian mass solar companion in the Oort cloud”. 《Icarus》 211 (2): 926–938. arXiv:1004.4584. Bibcode:2011Icar..211..926M. doi:10.1016/j.icarus.2010.11.009. S2CID 44204219.
Wouter Vlemmings; S. Ramstedt; M. Maercker; B. Davidsson (2015년 12월 8일). “The serendipitous discovery of a possible new solar system object with ALMA”. arXiv:1512.02650 [astro-ph.SR].
L. Iorio (2014). “Planet X revamped after the discovery of the Sedna-like object 2012 VP113?”. 《Monthly Notices of the Royal Astronomical Society: Letters》 444: L78–L79. arXiv:1404.0258. Bibcode:2014MNRAS.444L..78I. doi:10.1093/mnrasl/slu116. S2CID 118554088.
Iorio, Lorenzo (2017). “Is the Recently Proposed Mars-Sized Perturber at 65–80 AU Ruled Out by the Cassini Ranging Data?”. 《Frontiers in Astronomy and Space Sciences》 4: 28. arXiv:1407.5894. Bibcode:2017FrASS...4...28I. doi:10.3389/fspas.2017.00028. S2CID 26844167.
Fienga, A; Laskar, J; Manche, H; Gastineau, M (2016년 2월 23일). “Constraints on the location of a possible 9th planet derived from the Cassini data”. 《Astronomy and Astrophysics》 587: L8. arXiv:1602.06116. Bibcode:2016A&A...587L...8F. doi:10.1051/0004-6361/201628227. S2CID 119116589.
de la Fuente Marcos, Carlos; de la Fuente Marcos, Raúl (2022년 5월 1일). “Twisted extreme trans-Neptunian orbital parameter space: statistically significant asymmetries confirmed”. 《Monthly Notices of the Royal Astronomical Society Letters》 512 (1): L6–L10. arXiv:2202.01693. Bibcode:2022MNRAS.512L...6D. doi:10.1093/mnrasl/slac012.
Napier, J. K. 외 (2021). “No Evidence for Orbital Clustering in the Extreme Trans-Neptunian Objects”. 《The Planetary Science Journal》 2 (2): 59. arXiv:2102.05601. Bibcode:2021PSJ.....2...59N. doi:10.3847/PSJ/abe53e. S2CID 231861808.

astronomy.com (Global: low place; Korean: 6,774^th place)

"Percival Lowell's three early searches for Planet X". Astronomy Magazine. May 14, 2015.

bbc.co.uk (Global: 8^th place; Korean: 34^th place)

news.bbc.co.uk

“Astronomers discover 'new planet'”. 《BBC News》. 2004년 3월 15일. 2008년 6월 20일에 확인함.

bibliotecapleyades.net (Global: low place; Korean: low place)

Hasegawa, Kyoko (2008년 2월 28일). “Japanese scientists eye mysterious 'Planet X'”. 《BibliotecaPleyades.net》. 2016년 7월 18일에 확인함.

books.google.com (Global: 3^rd place; Korean: 9^th place)

David A. Weintraub (2014). 《Is Pluto a Planet?: A Historical Journey through the Solar System》. Princeton University Press. 141쪽. ISBN 978-1400852970.

caltech.edu (Global: 887^th place; Korean: 606^th place)

spider.ipac.caltech.edu

Thomas O'Toole (1983년 12월 30일). “Mystery Heavenly Body Discovered”. 《The Washington Post》. A1면. 2008년 2월 1일에 원본 문서에서 보존된 문서. 2008년 1월 28일에 확인함.

authors.library.caltech.edu

J. R. Houck; D. P. Schneider; D. E. Danielson 외 (1985). “Unidentified IRAS sources: Ultra-High Luminosity Galaxies” (PDF). 《The Astrophysical Journal》 290: 5–8. Bibcode:1985ApJ...290L...5H. doi:10.1086/184431.

astro.caltech.edu

Schwamb, Megan (2007년 9월 18일). “Searching for Sedna's Sisters: Exploring the inner Oort cloud” (PDF). Caltech. 2013년 5월 12일에 원본 문서 (PDF)에서 보존된 문서. 2010년 8월 6일에 확인함.

ciw.edu (Global: low place; Korean: 6,259^th place)

home.dtm.ciw.edu

Trujillo, C. A.; Sheppard, S. S. (2014). “A Sedna-like body with a perihelion of 80 astronomical units” (PDF). 《Nature》 507 (7493): 471–474. Bibcode:2014Natur.507..471T. doi:10.1038/nature13156. PMID 24670765. S2CID 4393431. 2014년 12월 16일에 원본 문서 (PDF)에서 보존된 문서. 2016년 1월 25일에 확인함.

cnn.com (Global: 28^th place; Korean: 89^th place)

edition.cnn.com

“NASA wants you to help find a new planet”. 《CNN》. 2017년 2월 16일. 2018년 3월 11일에 확인함.

dailyvoice.com (Global: 6,449^th place; Korean: low place)

norwalk.dailyvoice.com

Helhoski, Anna. “News 02/16/11 Does the Solar System Have Giant New Planet?”. 《The Norwalk Daily Voice》. 2012년 7월 10일에 확인함.

doi.org (Global: 2^nd place; Korean: 3^rd place)

dx.doi.org

Ernest Clare Bower (1930). “On the Orbit and Mass of Pluto with an Ephemeris for 1931–1932”. 《Lick Observatory Bulletin》 15 (437): 171–178. Bibcode:1931LicOB..15..171B. doi:10.5479/ADS/bib/1931LicOB.15.171B.
S. C. Tegler; W. Romanishin (2001). “Almost Planet X”. 《Nature》 411 (6836): 423–424. doi:10.1038/35078164. PMID 11373654. S2CID 5135498.
Luhman, K. L. (2014). “A Search for a Distant Companion to the Sun with the Wide-field Infrared Survey Explorer”. 《The Astrophysical Journal》 781 (1): 4. Bibcode:2014ApJ...781....4L. doi:10.1088/0004-637X/781/1/4. S2CID 122930471.
Trujillo, C. A.; Sheppard, S. S. (2014). “A Sedna-like body with a perihelion of 80 astronomical units” (PDF). 《Nature》 507 (7493): 471–474. Bibcode:2014Natur.507..471T. doi:10.1038/nature13156. PMID 24670765. S2CID 4393431. 2014년 12월 16일에 원본 문서 (PDF)에서 보존된 문서. 2016년 1월 25일에 확인함.
Batygin, Konstantin; Brown, Michael E. (2016년 1월 20일). “Evidence for a distant giant planet in the Solar system”. 《The Astronomical Journal》 151 (2): 22. arXiv:1601.05438. Bibcode:2016AJ....151...22B. doi:10.3847/0004-6256/151/2/22. S2CID 2701020.
Morton Grosser (1964). “The Search For A Planet Beyond Neptune”. 《Isis》 55 (2): 163–183. doi:10.1086/349825. JSTOR 228182. S2CID 144255699.
Millholland, Sarah; Laughlin, Gregory (2017). “Constraints on Planet Nine's Orbit and Sky Position within a Framework of Mean Motion Resonances”. 《The Astronomical Journal》 153 (3): 91. arXiv:1612.07774. Bibcode:2017AJ....153...91M. doi:10.3847/1538-3881/153/3/91. S2CID 119325788.
TJ Sherrill (1999). “A Career of Controversy: The Anomaly of T. J. J. See”. 《Journal for the History of Astronomy》 30: 25–50. Bibcode:1999JHA....30...25S. doi:10.1177/002182869903000102. S2CID 117727302.
Musotto, Susanna; Varadi, Ferenc; Moore, William; Schubert, Gerald (2002). “Numerical Simulations of the Orbits of the Galilean Satellites”. 《Icarus》 159 (2): 500–504. Bibcode:2002Icar..159..500M. doi:10.1006/icar.2002.6939.
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Ernest W. Brown (1931). “On a criterion for the prediction of an unknown planet”. 《Monthly Notices of the Royal Astronomical Society》 92: 80–100. Bibcode:1931MNRAS..92...80B. doi:10.1093/mnras/92.1.80.
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Dennis Rawlins (1973). “Mass and Position Limits for an Hypothetical Tenth Planet of the Solar System”. 《Monthly Notices of the Royal Astronomical Society》 162 (3): 261–270. Bibcode:1973MNRAS.162..261R. doi:10.1093/mnras/162.3.261. Rawlins also took into account Pluto's stellar occultation failure as reported by Halliday, I.; Hardie, R.; Franz, O.; Priser, J. (1966). “An upper limit for the diameter of Pluto”. 《Publications of the Astronomical Society of the Pacific》 78 (461): 113–124. Bibcode:1966PASP...78..113H. doi:10.1086/128307. S2CID 121483531.
“Pluto: Evidence for methane frost”. 《Science》 194 (4267): 835–837. 1976. doi:10.1126/science.194.4267.835-a. PMID 17744185.
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Marc W. Buie; William M. Grundy; Eliot F. Young (July 2006). “Orbits and photometry of Pluto's satellites: Charon, S/2005 P1, and S/2005 P2”. 《Astronomical Journal》 132 (1): 290–298. arXiv:astro-ph/0512491. Bibcode:2006AJ....132..290B. doi:10.1086/504422. S2CID 119386667.
R. S. Harrington (1988). “The location of Planet X”. 《The Astronomical Journal》 96: 1476–1478. Bibcode:1988AJ.....96.1476H. doi:10.1086/114898.
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J. R. Houck; D. P. Schneider; D. E. Danielson 외 (1985). “Unidentified IRAS sources: Ultra-High Luminosity Galaxies” (PDF). 《The Astrophysical Journal》 290: 5–8. Bibcode:1985ApJ...290L...5H. doi:10.1086/184431.
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J. Horner; N. W. Evans (September 2002). “Biases in cometary catalogues and Planet X”. 《Monthly Notices of the Royal Astronomical Society》 335 (3): 641–654. arXiv:astro-ph/0205150. Bibcode:2002MNRAS.335..641H. doi:10.1046/j.1365-8711.2002.05649.x. S2CID 17110153.
Brown, Mike; Rabinowitz, David; Trujillo, Chad (2004). “Discovery of a Candidate Inner Oort Cloud Planetoid”. 《Astrophysical Journal》 617 (1): 645–649. arXiv:astro-ph/0404456. Bibcode:2004ApJ...617..645B. doi:10.1086/422095. S2CID 7738201.
Patryk S., Lykawka; Tadashi, Mukai (2008). “An Outer Planet Beyond Pluto and the Origin of the Trans-Neptunian Belt Architecture”. 《The Astronomical Journal》 135 (4): 1161–1200. arXiv:0712.2198. Bibcode:2008AJ....135.1161L. doi:10.1088/0004-6256/135/4/1161. S2CID 118414447.
de la Fuente Marcos, C.; de la Fuente Marcos, R. (2014년 9월 1일). “Extreme trans-Neptunian objects and the Kozai mechanism: signalling the presence of trans-Plutonian planets”. 《Monthly Notices of the Royal Astronomical Society: Letters》 443 (1): L59–L63. arXiv:1406.0715. Bibcode:2014MNRAS.443L..59D. doi:10.1093/mnrasl/slu084. S2CID 118622180.
de la Fuente Marcos, Carlos; de la Fuente Marcos, Raúl (2016). “Commensurabilities between ETNOs: a Monte Carlo survey”. 《Monthly Notices of the Royal Astronomical Society Letters》 460 (1): L64–L68. arXiv:1604.05881. Bibcode:2016MNRAS.460L..64D. doi:10.1093/mnrasl/slw077. S2CID 119110892.
de la Fuente Marcos, Carlos; de la Fuente Marcos, Raúl (2017년 10월 11일). “Evidence for a possible bimodal distribution of the nodal distances of the extreme trans-Neptunian objects: avoiding a trans-Plutonian planet or just plain bias?”. 《Monthly Notices of the Royal Astronomical Society Letters》 471 (1): L61–L65. arXiv:1706.06981. Bibcode:2017MNRAS.471L..61D. doi:10.1093/mnrasl/slx106. S2CID 55469849.
de la Fuente Marcos, C.; de la Fuente Marcos, R. (2021년 2월 18일). “Memories of past close encounters in extreme trans-Neptunian space: Finding unseen planets using pure random searches”. 《Astronomy and Astrophysics Letters》 646: L14 (9 pp). arXiv:2102.02220. Bibcode:2021A&A...646L..14D. doi:10.1051/0004-6361/202140311. S2CID 231802033.
Brown, M.E.; Trujillo, C.; Rabinowitz, D. (2004). “Discovery of a candidate inner Oort Cloud planetoid”. 《Astrophysical Journal》 617 (1): 645–649. arXiv:astro-ph/0404456. Bibcode:2004ApJ...617..645B. doi:10.1086/422095. S2CID 7738201.
A. Brunini; M.D. Melita (2002). “The existence of a planet beyond 50 AU and the Orbital Distribution of the Classical Edgeworth–Kuiper-Belt Objects”. 《Icarus》 160 (1): 32–43. Bibcode:2002Icar..160...32B. doi:10.1006/icar.2002.6935. hdl:11336/37037.
P.S. Lykawka; T. Mukai (2008). “An outer planet beyond Pluto and the origin of the trans-Neptunian belt architecture”. 《Astronomical Journal》 135 (4): 1161–1200. arXiv:0712.2198. Bibcode:2008AJ....135.1161L. doi:10.1088/0004-6256/135/4/1161. S2CID 118414447.
Volk, Kathryn; Malhotra, Renu (2017). “The curiously warped mean plane of the Kuiper belt”. 《The Astronomical Journal》 154 (2): 62. arXiv:1704.02444. Bibcode:2017AJ....154...62V. doi:10.3847/1538-3881/aa79ff. S2CID 5756310.
Iorio, Lorenzo (2017). “Is the recently proposed Mars-sized perturber at 65–80 AU ruled out by the Cassini ranging data?”. 《Frontiers in Astronomy and Space Sciences》 4: 28. arXiv:1407.5894. Bibcode:2017FrASS...4...28I. doi:10.3389/fspas.2017.00028. S2CID 26844167.
C. de la Fuente Marcos; R. de la Fuente Marcos (2024년 1월 1일). “Past the outer rim, into the unknown: structures beyond the Kuiper Cliff”. 《Monthly Notices of the Royal Astronomical Society Letters》 527 (1): L110–L114. arXiv:2309.03885. Bibcode:2024MNRAS.527L.110D. doi:10.1093/mnrasl/slad132. 2023년 9월 28일에 확인함.
Matese, John J.; Whitmire, Daniel P. (2011). “Persistent evidence of a jovian mass solar companion in the Oort cloud”. 《Icarus》 211 (2): 926–938. arXiv:1004.4584. Bibcode:2011Icar..211..926M. doi:10.1016/j.icarus.2010.11.009. S2CID 44204219.
L. Iorio (2014). “Planet X revamped after the discovery of the Sedna-like object 2012 VP113?”. 《Monthly Notices of the Royal Astronomical Society: Letters》 444: L78–L79. arXiv:1404.0258. Bibcode:2014MNRAS.444L..78I. doi:10.1093/mnrasl/slu116. S2CID 118554088.
Iorio, Lorenzo (2017). “Is the Recently Proposed Mars-Sized Perturber at 65–80 AU Ruled Out by the Cassini Ranging Data?”. 《Frontiers in Astronomy and Space Sciences》 4: 28. arXiv:1407.5894. Bibcode:2017FrASS...4...28I. doi:10.3389/fspas.2017.00028. S2CID 26844167.
Fienga, A; Laskar, J; Manche, H; Gastineau, M (2016년 2월 23일). “Constraints on the location of a possible 9th planet derived from the Cassini data”. 《Astronomy and Astrophysics》 587: L8. arXiv:1602.06116. Bibcode:2016A&A...587L...8F. doi:10.1051/0004-6361/201628227. S2CID 119116589.
de la Fuente Marcos, Carlos; de la Fuente Marcos, Raúl (2022년 5월 1일). “Twisted extreme trans-Neptunian orbital parameter space: statistically significant asymmetries confirmed”. 《Monthly Notices of the Royal Astronomical Society Letters》 512 (1): L6–L10. arXiv:2202.01693. Bibcode:2022MNRAS.512L...6D. doi:10.1093/mnrasl/slac012.
Napier, J. K. 외 (2021). “No Evidence for Orbital Clustering in the Extreme Trans-Neptunian Objects”. 《The Planetary Science Journal》 2 (2): 59. arXiv:2102.05601. Bibcode:2021PSJ.....2...59N. doi:10.3847/PSJ/abe53e. S2CID 231861808.

ernet.in (Global: 4,058^th place; Korean: 8,863^rd place)

new.dli.ernet.in

JG Chhabra; SD Sharma; M Khanna (1984). “Prediction of Pluto by V. P. Ketakar” (PDF). 《Indian Journal of History of Science》 19 (1): 18–26. Bibcode:1984InJHS..19...18C. 2009년 2월 25일에 원본 문서 (PDF)에서 보존된 문서. 2008년 9월 4일에 확인함.

ghostarchive.org (Global: 32^nd place; Korean: 656^th place)

Brown, Mike (August 2008). 《Pluto, Eris, and the dwarf planets of the outer solar system》 (academic talk). Smithsonian. 50ᵐ에 발생. 2021년 11월 14일에 원본 문서에서 보존된 문서. 2019년 1월 2일에 확인함 – YouTube 경유. The argument about dwarf planet sizes beyond Neptune is 50ᵐ into his talk. The WGBH link doesn't work; view on YouTube.

handle.net (Global: 102^nd place; Korean: 307^th place)

hdl.handle.net

A. Brunini; M.D. Melita (2002). “The existence of a planet beyond 50 AU and the Orbital Distribution of the Classical Edgeworth–Kuiper-Belt Objects”. 《Icarus》 160 (1): 32–43. Bibcode:2002Icar..160...32B. doi:10.1006/icar.2002.6935. hdl:11336/37037.

harvar%5b62%5d%5bd.edu (Global: low place; Korean: low place)

cbat.eps.harvar%5b62%5d%5bd.edu

Minor Planet Center (1992). “Circular No. 5611”. 2008년 5월 4일에 원본 문서 |url= 값 확인 필요 (도움말)에서 보존된 문서. 2011년 7월 5일에 확인함.

harvard.edu (Global: 18^th place; Korean: 27^th place)

adsabs.harvard.edu

Ernest Clare Bower (1930). “On the Orbit and Mass of Pluto with an Ephemeris for 1931–1932”. 《Lick Observatory Bulletin》 15 (437): 171–178. Bibcode:1931LicOB..15..171B. doi:10.5479/ADS/bib/1931LicOB.15.171B.
Luhman, K. L. (2014). “A Search for a Distant Companion to the Sun with the Wide-field Infrared Survey Explorer”. 《The Astrophysical Journal》 781 (1): 4. Bibcode:2014ApJ...781....4L. doi:10.1088/0004-637X/781/1/4. S2CID 122930471.
Trujillo, C. A.; Sheppard, S. S. (2014). “A Sedna-like body with a perihelion of 80 astronomical units” (PDF). 《Nature》 507 (7493): 471–474. Bibcode:2014Natur.507..471T. doi:10.1038/nature13156. PMID 24670765. S2CID 4393431. 2014년 12월 16일에 원본 문서 (PDF)에서 보존된 문서. 2016년 1월 25일에 확인함.
Batygin, Konstantin; Brown, Michael E. (2016년 1월 20일). “Evidence for a distant giant planet in the Solar system”. 《The Astronomical Journal》 151 (2): 22. arXiv:1601.05438. Bibcode:2016AJ....151...22B. doi:10.3847/0004-6256/151/2/22. S2CID 2701020.
Millholland, Sarah; Laughlin, Gregory (2017). “Constraints on Planet Nine's Orbit and Sky Position within a Framework of Mean Motion Resonances”. 《The Astronomical Journal》 153 (3): 91. arXiv:1612.07774. Bibcode:2017AJ....153...91M. doi:10.3847/1538-3881/153/3/91. S2CID 119325788.
TJ Sherrill (1999). “A Career of Controversy: The Anomaly of T. J. J. See”. 《Journal for the History of Astronomy》 30: 25–50. Bibcode:1999JHA....30...25S. doi:10.1177/002182869903000102. S2CID 117727302.
JG Chhabra; SD Sharma; M Khanna (1984). “Prediction of Pluto by V. P. Ketakar” (PDF). 《Indian Journal of History of Science》 19 (1): 18–26. Bibcode:1984InJHS..19...18C. 2009년 2월 25일에 원본 문서 (PDF)에서 보존된 문서. 2008년 9월 4일에 확인함.
Musotto, Susanna; Varadi, Ferenc; Moore, William; Schubert, Gerald (2002). “Numerical Simulations of the Orbits of the Galilean Satellites”. 《Icarus》 159 (2): 500–504. Bibcode:2002Icar..159..500M. doi:10.1006/icar.2002.6939.
Renu Malhotra (1998). “Orbital Resonances and Chaos in the Solar System” (PDF). 《Solar System Formation and Evolution ASP Conference Series》 149: 37. Bibcode:1998ASPC..149...37M.
Ernest W. Brown (1931). “On a criterion for the prediction of an unknown planet”. 《Monthly Notices of the Royal Astronomical Society》 92: 80–100. Bibcode:1931MNRAS..92...80B. doi:10.1093/mnras/92.1.80.
“The Discovery of Pluto”. 《Monthly Notices of the Royal Astronomical Society》 91 (4): 380–385. February 1931. Bibcode:1931MNRAS..91..380.. doi:10.1093/mnras/91.4.380.
Kuiper, Gerard P. (August 1950). “The Diameter of Pluto”. 《Publications of the Astronomical Society of the Pacific》 62 (366): 133–137. Bibcode:1950PASP...62..133K. doi:10.1086/126255.
Walter Baade (1934). “The Photographic Magnitude and Color Index of Pluto”. 《Publications of the Astronomical Society of the Pacific》 46 (272): 218. Bibcode:1934PASP...46..218B. doi:10.1086/124467.
Dennis Rawlins (1973). “Mass and Position Limits for an Hypothetical Tenth Planet of the Solar System”. 《Monthly Notices of the Royal Astronomical Society》 162 (3): 261–270. Bibcode:1973MNRAS.162..261R. doi:10.1093/mnras/162.3.261. Rawlins also took into account Pluto's stellar occultation failure as reported by Halliday, I.; Hardie, R.; Franz, O.; Priser, J. (1966). “An upper limit for the diameter of Pluto”. 《Publications of the Astronomical Society of the Pacific》 78 (461): 113–124. Bibcode:1966PASP...78..113H. doi:10.1086/128307. S2CID 121483531.
James W. Christy; Robert S. Harrington (August 1978). “The Satellite of Pluto”. 《Astronomical Journal》 83 (8): 1005–1008. Bibcode:1978AJ.....83.1005C. doi:10.1086/112284.
Marc W. Buie; William M. Grundy; Eliot F. Young (July 2006). “Orbits and photometry of Pluto's satellites: Charon, S/2005 P1, and S/2005 P2”. 《Astronomical Journal》 132 (1): 290–298. arXiv:astro-ph/0512491. Bibcode:2006AJ....132..290B. doi:10.1086/504422. S2CID 119386667.
R. S. Harrington (1988). “The location of Planet X”. 《The Astronomical Journal》 96: 1476–1478. Bibcode:1988AJ.....96.1476H. doi:10.1086/114898.
Brady, Joseph L. (1972). “The Effect of a Trans-Plutonian Planet on Halley's Comet”. 《Publications of the Astronomical Society of the Pacific》 84 (498): 314–322. Bibcode:1972PASP...84..314B. doi:10.1086/129290. S2CID 122053270.
J. R. Houck; D. P. Schneider; D. E. Danielson 외 (1985). “Unidentified IRAS sources: Ultra-High Luminosity Galaxies” (PDF). 《The Astrophysical Journal》 290: 5–8. Bibcode:1985ApJ...290L...5H. doi:10.1086/184431.
A. A. Jackson; R. M. Killen (1988). “Planet X and the stability of resonances in the Neptune-Pluto system”. 《Monthly Notices of the Royal Astronomical Society》 235 (2): 593–601. Bibcode:1988MNRAS.235..593J. doi:10.1093/mnras/235.2.593.
Myles Standish (1992년 7월 16일). “Planet X – No dynamical evidence in the optical observations”. 《Astronomical Journal》 105 (5): 200–2006. Bibcode:1993AJ....105.2000S. doi:10.1086/116575.
J. Horner; N. W. Evans (September 2002). “Biases in cometary catalogues and Planet X”. 《Monthly Notices of the Royal Astronomical Society》 335 (3): 641–654. arXiv:astro-ph/0205150. Bibcode:2002MNRAS.335..641H. doi:10.1046/j.1365-8711.2002.05649.x. S2CID 17110153.
Brown, Mike; Rabinowitz, David; Trujillo, Chad (2004). “Discovery of a Candidate Inner Oort Cloud Planetoid”. 《Astrophysical Journal》 617 (1): 645–649. arXiv:astro-ph/0404456. Bibcode:2004ApJ...617..645B. doi:10.1086/422095. S2CID 7738201.
Patryk S., Lykawka; Tadashi, Mukai (2008). “An Outer Planet Beyond Pluto and the Origin of the Trans-Neptunian Belt Architecture”. 《The Astronomical Journal》 135 (4): 1161–1200. arXiv:0712.2198. Bibcode:2008AJ....135.1161L. doi:10.1088/0004-6256/135/4/1161. S2CID 118414447.
de la Fuente Marcos, C.; de la Fuente Marcos, R. (2014년 9월 1일). “Extreme trans-Neptunian objects and the Kozai mechanism: signalling the presence of trans-Plutonian planets”. 《Monthly Notices of the Royal Astronomical Society: Letters》 443 (1): L59–L63. arXiv:1406.0715. Bibcode:2014MNRAS.443L..59D. doi:10.1093/mnrasl/slu084. S2CID 118622180.
de la Fuente Marcos, Carlos; de la Fuente Marcos, Raúl (2016). “Commensurabilities between ETNOs: a Monte Carlo survey”. 《Monthly Notices of the Royal Astronomical Society Letters》 460 (1): L64–L68. arXiv:1604.05881. Bibcode:2016MNRAS.460L..64D. doi:10.1093/mnrasl/slw077. S2CID 119110892.
de la Fuente Marcos, Carlos; de la Fuente Marcos, Raúl (2017년 10월 11일). “Evidence for a possible bimodal distribution of the nodal distances of the extreme trans-Neptunian objects: avoiding a trans-Plutonian planet or just plain bias?”. 《Monthly Notices of the Royal Astronomical Society Letters》 471 (1): L61–L65. arXiv:1706.06981. Bibcode:2017MNRAS.471L..61D. doi:10.1093/mnrasl/slx106. S2CID 55469849.
de la Fuente Marcos, C.; de la Fuente Marcos, R. (2021년 2월 18일). “Memories of past close encounters in extreme trans-Neptunian space: Finding unseen planets using pure random searches”. 《Astronomy and Astrophysics Letters》 646: L14 (9 pp). arXiv:2102.02220. Bibcode:2021A&A...646L..14D. doi:10.1051/0004-6361/202140311. S2CID 231802033.
Brown, M.E.; Trujillo, C.; Rabinowitz, D. (2004). “Discovery of a candidate inner Oort Cloud planetoid”. 《Astrophysical Journal》 617 (1): 645–649. arXiv:astro-ph/0404456. Bibcode:2004ApJ...617..645B. doi:10.1086/422095. S2CID 7738201.
A. Brunini; M.D. Melita (2002). “The existence of a planet beyond 50 AU and the Orbital Distribution of the Classical Edgeworth–Kuiper-Belt Objects”. 《Icarus》 160 (1): 32–43. Bibcode:2002Icar..160...32B. doi:10.1006/icar.2002.6935. hdl:11336/37037.
P.S. Lykawka; T. Mukai (2008). “An outer planet beyond Pluto and the origin of the trans-Neptunian belt architecture”. 《Astronomical Journal》 135 (4): 1161–1200. arXiv:0712.2198. Bibcode:2008AJ....135.1161L. doi:10.1088/0004-6256/135/4/1161. S2CID 118414447.
Volk, Kathryn; Malhotra, Renu (2017). “The curiously warped mean plane of the Kuiper belt”. 《The Astronomical Journal》 154 (2): 62. arXiv:1704.02444. Bibcode:2017AJ....154...62V. doi:10.3847/1538-3881/aa79ff. S2CID 5756310.
Iorio, Lorenzo (2017). “Is the recently proposed Mars-sized perturber at 65–80 AU ruled out by the Cassini ranging data?”. 《Frontiers in Astronomy and Space Sciences》 4: 28. arXiv:1407.5894. Bibcode:2017FrASS...4...28I. doi:10.3389/fspas.2017.00028. S2CID 26844167.
C. de la Fuente Marcos; R. de la Fuente Marcos (2024년 1월 1일). “Past the outer rim, into the unknown: structures beyond the Kuiper Cliff”. 《Monthly Notices of the Royal Astronomical Society Letters》 527 (1): L110–L114. arXiv:2309.03885. Bibcode:2024MNRAS.527L.110D. doi:10.1093/mnrasl/slad132. 2023년 9월 28일에 확인함.
Matese, John J.; Whitmire, Daniel P. (2011). “Persistent evidence of a jovian mass solar companion in the Oort cloud”. 《Icarus》 211 (2): 926–938. arXiv:1004.4584. Bibcode:2011Icar..211..926M. doi:10.1016/j.icarus.2010.11.009. S2CID 44204219.
L. Iorio (2014). “Planet X revamped after the discovery of the Sedna-like object 2012 VP113?”. 《Monthly Notices of the Royal Astronomical Society: Letters》 444: L78–L79. arXiv:1404.0258. Bibcode:2014MNRAS.444L..78I. doi:10.1093/mnrasl/slu116. S2CID 118554088.
Iorio, Lorenzo (2017). “Is the Recently Proposed Mars-Sized Perturber at 65–80 AU Ruled Out by the Cassini Ranging Data?”. 《Frontiers in Astronomy and Space Sciences》 4: 28. arXiv:1407.5894. Bibcode:2017FrASS...4...28I. doi:10.3389/fspas.2017.00028. S2CID 26844167.
Fienga, A; Laskar, J; Manche, H; Gastineau, M (2016년 2월 23일). “Constraints on the location of a possible 9th planet derived from the Cassini data”. 《Astronomy and Astrophysics》 587: L8. arXiv:1602.06116. Bibcode:2016A&A...587L...8F. doi:10.1051/0004-6361/201628227. S2CID 119116589.
de la Fuente Marcos, Carlos; de la Fuente Marcos, Raúl (2022년 5월 1일). “Twisted extreme trans-Neptunian orbital parameter space: statistically significant asymmetries confirmed”. 《Monthly Notices of the Royal Astronomical Society Letters》 512 (1): L6–L10. arXiv:2202.01693. Bibcode:2022MNRAS.512L...6D. doi:10.1093/mnrasl/slac012.
Napier, J. K. 외 (2021). “No Evidence for Orbital Clustering in the Extreme Trans-Neptunian Objects”. 《The Planetary Science Journal》 2 (2): 59. arXiv:2102.05601. Bibcode:2021PSJ.....2...59N. doi:10.3847/PSJ/abe53e. S2CID 231861808.

cbat.eps.harvard.edu

Central Bureau for Astronomical Telegrams, International Astronomical Union (2006). “Circular No. 8747” (PDF). 2007년 2월 5일에 원본 문서에서 보존된 문서. 2011년 7월 5일에 확인함.

iau.org (Global: 1,985^th place; Korean: 1,035^th place)

“IAU 2006 General Assembly: Resolutions 5 and 6” (PDF). International Astronomical Union. 2006년 8월 24일. 2009년 6월 20일에 원본 문서 (PDF)에서 보존된 문서. 2016년 6월 23일에 확인함.

independent.co.uk (Global: 36^th place; Korean: 175^th place)

Rodgers, Paul (2011년 2월 13일). “Up telescope! Search begins for giant new planet”. 《The Independent》. 2011년 2월 14일에 확인함.

jstor.org (Global: 26^th place; Korean: 70^th place)

Morton Grosser (1964). “The Search For A Planet Beyond Neptune”. 《Isis》 55 (2): 163–183. doi:10.1086/349825. JSTOR 228182. S2CID 144255699.
William Graves Hoyt (December 1976). “W. H. Pickering's Planetary Predictions and the Discovery of Pluto”. 《Isis》 67 (4): 551–564. doi:10.1086/351668. JSTOR 230561. PMID 794024. S2CID 26512655. p. 563.

louisiana.edu (Global: low place; Korean: low place)

ucs.louisiana.edu

“Astrophysics Homepage of John J. Matese”. Ucs.louisiana.edu. 2011년 9월 21일. 2013년 4월 1일에 확인함.
“Daniel P. Whitmire”. Ucs.louisiana.edu. 2013년 4월 1일에 확인함.

nasa.gov (Global: 75^th place; Korean: 67^th place)

jpl.nasa.gov

“NASA-Funded Scientists Discover Tenth Planet”. Jet Propulsion Laboratory. 2005. 2011년 7월 21일에 원본 문서에서 보존된 문서. 2007년 2월 22일에 확인함.
Whitney Clavin (2011년 2월 18일). “Can WISE Find the Hypothetical 'Tyche'?”. NASA/JPL. 2011년 2월 19일에 확인함.
Clavin, Whitney; Harrington, J.D. (2014년 3월 7일). “NASA's WISE Survey Finds Thousands of New Stars, But No 'Planet X'”. 《NASA》. 2014년 3월 7일에 확인함.

sse.jpl.nasa.gov

“NASA's Solar System Exploration: Multimedia: Gallery: Pluto's Symbol”. NASA. 2006년 10월 1일에 원본 문서에서 보존된 문서. 2007년 3월 25일에 확인함.

nationalgeographic.com (Global: 344^th place; Korean: 269^th place)

news.nationalgeographic.com

“New planet found in our Solar System?”. 《National Geographic》. 2012. 2012년 5월 14일에 원본 문서에서 보존된 문서. 2012년 5월 21일에 확인함.

newscientist.com (Global: 774^th place; Korean: 509^th place)

New Scientist, 23 July 2005, issue 2509, Far-out worlds, just waiting to be found

newsweek.com (Global: 269^th place; Korean: 902^nd place)

Osbourne, Hannah (2017년 6월 23일). “Forget Planet 9 - there's evidence of a tenth planet lurking at the edge of the solar system”. 《Newsweek》. 2017년 6월 23일에 확인함.

newyorker.com (Global: 146^th place; Korean: 623^rd place)

Burdick, Alan (2016년 1월 20일). “Discovering Planet Nine”. 《The New Yorker》. 2016년 1월 20일에 확인함.

nih.gov (Global: 4^th place; Korean: 4^th place)

ncbi.nlm.nih.gov

S. C. Tegler; W. Romanishin (2001). “Almost Planet X”. 《Nature》 411 (6836): 423–424. doi:10.1038/35078164. PMID 11373654. S2CID 5135498.
Trujillo, C. A.; Sheppard, S. S. (2014). “A Sedna-like body with a perihelion of 80 astronomical units” (PDF). 《Nature》 507 (7493): 471–474. Bibcode:2014Natur.507..471T. doi:10.1038/nature13156. PMID 24670765. S2CID 4393431. 2014년 12월 16일에 원본 문서 (PDF)에서 보존된 문서. 2016년 1월 25일에 확인함.
William Graves Hoyt (December 1976). “W. H. Pickering's Planetary Predictions and the Discovery of Pluto”. 《Isis》 67 (4): 551–564. doi:10.1086/351668. JSTOR 230561. PMID 794024. S2CID 26512655. p. 563.
“Pluto: Evidence for methane frost”. 《Science》 194 (4267): 835–837. 1976. doi:10.1126/science.194.4267.835-a. PMID 17744185.

nmspacemuseum.org (Global: low place; Korean: low place)

“Clyde W. Tombaugh”. New Mexico Museum of Space History. 2008년 6월 29일에 확인함.

nytimes.com (Global: 7^th place; Korean: 36^th place)

timesmachine.nytimes.com

“"Planet X" Orbit Raises More Doubt” (PDF). 《The New York Times》. 1930년 4월 14일.

nytimes.com

Chang, Kenneth (2016년 1월 20일). “Ninth Planet May Exist Beyond Pluto, Scientists Report”. 《The New York Times》. 2016년 1월 22일에 확인함.

oup.com (Global: 485^th place; Korean: 371^st place)

academic.oup.com

C. de la Fuente Marcos; R. de la Fuente Marcos (2024년 1월 1일). “Past the outer rim, into the unknown: structures beyond the Kuiper Cliff”. 《Monthly Notices of the Royal Astronomical Society Letters》 527 (1): L110–L114. arXiv:2309.03885. Bibcode:2024MNRAS.527L.110D. doi:10.1093/mnrasl/slad132. 2023년 9월 28일에 확인함.
de la Fuente Marcos, Carlos; de la Fuente Marcos, Raúl (2022년 5월 1일). “Twisted extreme trans-Neptunian orbital parameter space: statistically significant asymmetries confirmed”. 《Monthly Notices of the Royal Astronomical Society Letters》 512 (1): L6–L10. arXiv:2202.01693. Bibcode:2022MNRAS.512L...6D. doi:10.1093/mnrasl/slac012.

phys.org (Global: 1,283^rd place; Korean: 1,671^st place)

“A new object at the edge of our Solar System discovered”. 《Physorg.com》. 2014년 3월 26일.

science.org (Global: 1,160^th place; Korean: 1,607^th place)

“Forget about Planet Nine. Here's evidence for Planet 10”. 《www.science.org》.

scientificamerican.com (Global: 896^th place; Korean: 752^nd place)

Lee Billings (2015). “Astronomers Skeptical Over "Planet X" Claims”. 《Scientific American》. 2016년 1월 22일에 확인함.

semanticscholar.org (Global: 11^th place; Korean: 310^th place)

api.semanticscholar.org

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de la Fuente Marcos, Carlos; de la Fuente Marcos, Raúl (2017년 10월 11일). “Evidence for a possible bimodal distribution of the nodal distances of the extreme trans-Neptunian objects: avoiding a trans-Plutonian planet or just plain bias?”. 《Monthly Notices of the Royal Astronomical Society Letters》 471 (1): L61–L65. arXiv:1706.06981. Bibcode:2017MNRAS.471L..61D. doi:10.1093/mnrasl/slx106. S2CID 55469849.
de la Fuente Marcos, C.; de la Fuente Marcos, R. (2021년 2월 18일). “Memories of past close encounters in extreme trans-Neptunian space: Finding unseen planets using pure random searches”. 《Astronomy and Astrophysics Letters》 646: L14 (9 pp). arXiv:2102.02220. Bibcode:2021A&A...646L..14D. doi:10.1051/0004-6361/202140311. S2CID 231802033.
Brown, M.E.; Trujillo, C.; Rabinowitz, D. (2004). “Discovery of a candidate inner Oort Cloud planetoid”. 《Astrophysical Journal》 617 (1): 645–649. arXiv:astro-ph/0404456. Bibcode:2004ApJ...617..645B. doi:10.1086/422095. S2CID 7738201.
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Iorio, Lorenzo (2017). “Is the recently proposed Mars-sized perturber at 65–80 AU ruled out by the Cassini ranging data?”. 《Frontiers in Astronomy and Space Sciences》 4: 28. arXiv:1407.5894. Bibcode:2017FrASS...4...28I. doi:10.3389/fspas.2017.00028. S2CID 26844167.
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Iorio, Lorenzo (2017). “Is the Recently Proposed Mars-Sized Perturber at 65–80 AU Ruled Out by the Cassini Ranging Data?”. 《Frontiers in Astronomy and Space Sciences》 4: 28. arXiv:1407.5894. Bibcode:2017FrASS...4...28I. doi:10.3389/fspas.2017.00028. S2CID 26844167.
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solarviews.com (Global: low place; Korean: 5,881^st place)

Paul Schlyter. “Hypothetical Planets”. 《The Swedish Amateur Astronomical Society》. 2019년 12월 7일에 확인함.

space.com (Global: 936^th place; Korean: 686^th place)

Than, Ker (2008년 6월 18일). “Large 'Planet X' May Lurk Beyond Pluto”. 《Space.com》. 2016년 7월 18일에 확인함.
“Planet 10? Another Earth-size world may lurk in the outer solar system”. 《Space.com》. 2017년 6월 22일.
“Planet 10? Another Earth-size world may lurk in the outer solar system”. 《Space.com》. 2017년 6월 22일.

spacedaily.com (Global: 8,300^th place; Korean: 6,533^rd place)

Alan Stern (2006). “Unabashedly Onward to the Ninth Planet”. NASA. 2008년 6월 25일에 확인함.

ucla.edu (Global: 782^nd place; Korean: 648^th place)

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David C. Jewitt (University of Hawaii) (2006). “David Jewitt:Planet X”. Personal web site. 2008년 5월 8일에 원본 문서에서 보존된 문서. 2008년 5월 21일에 확인함.

washingtonpost.com (Global: 34^th place; Korean: 124^th place)

Achenbach, Joel; Feltman, Rachel (2016년 1월 20일). “New evidence suggests a ninth planet lurking at the edge of the solar system” (미국 영어). 《The Washington Post》. 2016년 1월 20일에 확인함.

web.archive.org (Global: 1^st place; Korean: 1^st place)

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Trujillo, C. A.; Sheppard, S. S. (2014). “A Sedna-like body with a perihelion of 80 astronomical units” (PDF). 《Nature》 507 (7493): 471–474. Bibcode:2014Natur.507..471T. doi:10.1038/nature13156. PMID 24670765. S2CID 4393431. 2014년 12월 16일에 원본 문서 (PDF)에서 보존된 문서. 2016년 1월 25일에 확인함.
JG Chhabra; SD Sharma; M Khanna (1984). “Prediction of Pluto by V. P. Ketakar” (PDF). 《Indian Journal of History of Science》 19 (1): 18–26. Bibcode:1984InJHS..19...18C. 2009년 2월 25일에 원본 문서 (PDF)에서 보존된 문서. 2008년 9월 4일에 확인함.
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J. K. Davies; J. McFarland; M. E. Bailey; B. G. Marsden 외 (2008). 〈The Early Development of Ideas Concerning the Transneptunian Region〉 (PDF). M. Antonietta Baracci; Hermann Boenhardt; Dale Cruikchank; Alissandro Morbidelli (편집). 《The Solar System Beyond Neptune》. University of Arizona Press. 11–23쪽. 2015년 2월 20일에 원본 문서 (PDF)에서 보존된 문서. 2014년 11월 5일에 확인함.
Thomas O'Toole (1983년 12월 30일). “Mystery Heavenly Body Discovered”. 《The Washington Post》. A1면. 2008년 2월 1일에 원본 문서에서 보존된 문서. 2008년 1월 28일에 확인함.
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Central Bureau for Astronomical Telegrams, International Astronomical Union (2006). “Circular No. 8747” (PDF). 2007년 2월 5일에 원본 문서에서 보존된 문서. 2011년 7월 5일에 확인함.
“NASA-Funded Scientists Discover Tenth Planet”. Jet Propulsion Laboratory. 2005. 2011년 7월 21일에 원본 문서에서 보존된 문서. 2007년 2월 22일에 확인함.
David C. Jewitt (University of Hawaii) (2006). “David Jewitt:Planet X”. Personal web site. 2008년 5월 8일에 원본 문서에서 보존된 문서. 2008년 5월 21일에 확인함.
Schwamb, Megan (2007년 9월 18일). “Searching for Sedna's Sisters: Exploring the inner Oort cloud” (PDF). Caltech. 2013년 5월 12일에 원본 문서 (PDF)에서 보존된 문서. 2010년 8월 6일에 확인함.
“New planet found in our Solar System?”. 《National Geographic》. 2012. 2012년 5월 14일에 원본 문서에서 보존된 문서. 2012년 5월 21일에 확인함.
Brown, Mike (2007년 4월 11일). “Pluto and the outer solar system”. Lowell Lectures in Astronomy. Boston, MA: Museum of Science, Boston / WGBH. 2008년 1월 3일에 원본 문서에서 보존된 문서. 2008년 7월 13일에 확인함.

wgbh.org (Global: 8,236^th place; Korean: low place)

forum.wgbh.org

Brown, Mike (2007년 4월 11일). “Pluto and the outer solar system”. Lowell Lectures in Astronomy. Boston, MA: Museum of Science, Boston / WGBH. 2008년 1월 3일에 원본 문서에서 보존된 문서. 2008년 7월 13일에 확인함.

youtube.com (Global: 9^th place; Korean: 20^th place)

Brown, Mike (August 2008). 《Pluto, Eris, and the dwarf planets of the outer solar system》 (academic talk). Smithsonian. 50ᵐ에 발생. 2021년 11월 14일에 원본 문서에서 보존된 문서. 2019년 1월 2일에 확인함 – YouTube 경유. The argument about dwarf planet sizes beyond Neptune is 50ᵐ into his talk. The WGBH link doesn't work; view on YouTube.

해왕성 바깥 행성 (Korean Wikipedia)

aanda.org (Global: 5,591st place; Korean: 2,411th place)

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arxiv.org (Global: 69th place; Korean: 54th place)

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arxiv.org (Global: 69^th place; Korean: 54^th place)

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nih.gov (Global: 4^th place; Korean: 4^th place)

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phys.org (Global: 1,283^rd place; Korean: 1,671^st place)

science.org (Global: 1,160^th place; Korean: 1,607^th place)

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space.com (Global: 936^th place; Korean: 686^th place)

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ucla.edu (Global: 782^nd place; Korean: 648^th place)

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