最小的系外行星列表

以下是迄今為止發現的最小的 系外行星列表，就有形的大小，按半徑排序。但其中一些未經證實和/或仍有爭議。 以地球半徑為單位列出行星半徑（R地球）。所有列出的系外行星都小於地球，最大為0.7地球半徑。NASA系外行星檔案（英语：NASA Exoplanet Archive）是最主要的數據來源。 List of largest exoplanets 太陽系外行星之最列表 系外行星列表 Staff. Exoplanet Catalog. Extrasolar Planets Encyclopaedia. 10 July 2017 [10 July 2017]. （原始内容存档于2012-07-05）.  Planetary Systems Composite Data. NASA Exoplanet Archive. [12 December 2021]. （原始内容存档于2020-10-07）.  Planet SDSS J1228+1040 b. exoplanet.eu. [2019-08-05]. （原始内容存档于2019-10-19）.  Vanderburg, Andrew; John Asher Johnson; Rappaport, Saul; Bieryla, Allyson; Irwin, Jonathan; John Arban Lewis; Kipping, David; Brown, Warren R.; Dufour, Patrick; Ciardi, David R.; Angus, Ruth; Schaefer, Laura; Latham, David W.; Charbonneau, David; Beichman, Charles; Eastman, Jason; McCrady, Nate; Wittenmyer, Robert A.; Wright, Jason T. A disintegrating minor planet transiting a white dwarf. Nature. 2015, 526 (7574): 546–549. Bibcode:2015Natur.526..546V. PMID 26490620. S2CID 4451207. arXiv:1510.06387 . doi:10.1038/nature15527.  Simukoff, E.; et al. Below One Earth Mass: The Detection, Formation, and Properties of Subterrestrial Worlds. Space Science Reviews. 2013, 180 (1–4): 71. Bibcode:2013SSRv..180...71S. S2CID 118597064. arXiv:1308.6308 . doi:10.1007/s11214-013-0019-1.  Ansdell, M.; Hirano, T.; Gaidos, E. Monitoring of the D doublet of neutral sodium during transits of two 'evaporating' planets. Monthly Notices of the Royal Astronomical Society. 2019, 485 (3): 3876–3886. arXiv:1903.06217 . doi:10.1093/mnras/stz693. [...]the radii are not known but are thought to be smaller than Mercury (0.36R⊕).  Garai, Z. Light-curve analysis of KOI 2700b: The second extrasolar planet with a comet-like tail. Astronomy & Astrophysics. 2018, 611: A63. Bibcode:2018A&A...611A..63G. S2CID 118885868. arXiv:1712.07461 . doi:10.1051/0004-6361/201629676. We confirmed the disintegrating-planet scenario of KOI 2700b.  Exoplanet-catalog. [2022-11-28]. （原始内容存档于2022-02-10）.  Rajpaul, V. M.; Buchhave, L. A.; Lacedelli, G.; Rice, K.; Mortier, A.; Malavolta, L.; Aigrain, S.; Borsato, L.; Mayo, A. W.; Charbonneau, D.; Damasso, M.; Dumusque, X.; Ghedina, A.; Latham, D. W.; López-Morales, M.; Magazzù, A.; Micela, G.; Molinari, E.; Pepe, F.; Piotto, G.; Poretti, E.; Rowther, S.; Sozzetti, A.; Udry, S.; Watson, C. A., A HARPS-N mass for the elusive Kepler-37d: A case study in disentangling stellar activity and planetary signals, Monthly Notices of the Royal Astronomical Society, 2021, 507 (2): 1847–1868, arXiv:2107.13900 , doi:10.1093/mnras/stab2192  Campante, T.; et al. KOI-3158: The oldest known system of terrestrial-size planets. EPJ Web of Conferences. 2015, 101: 02004. Bibcode:2015EPJWC.10102004C. S2CID 16191462. arXiv:1501.07869 . doi:10.1051/epjconf/201510102004.  Cañas, Caleb I.; Mahadevan, Suvrath; Cochran, William D.; Bender, Chad F.; Feigelson, Eric D.; Harman, C. E.; Kopparapu, Ravi Kumar; Caceres, Gabriel A.; Diddams, Scott A.; Endl, Michael; Ford, Eric B.; Halverson, Samuel; Hearty, Fred; Jones, Sinclaire; Kanodia, Shubham; Lin, Andrea S. J.; Metcalf, Andrew J.; Monson, Andrew; Ninan, Joe P.; Ramsey, Lawrence W.; Robertson, Paul; Roy, Arpita; Schwab, Christian; Stefánsson, Guđmundur. A Hot Mars-sized Exoplanet Transiting an M Dwarf. The Astronomical Journal. 2022, 163 (1): 3. Bibcode:2022AJ....163....3C. S2CID 244954104. arXiv:2112.03958 . doi:10.3847/1538-3881/ac3088.  Kepler-105. NASA Exoplanet Archive. [12 December 2021].  Stevenson, Kevin B.; et al. A Hubble Space Telescope Search for a Sub-Earth-sized Exoplanet in the GJ 436 System. The Astrophysical Journal. 2014, 796 (1). 32. Bibcode:2014ApJ...796...32S. S2CID 118412895. arXiv:1410.0002 . doi:10.1088/0004-637X/796/1/32.  Lanotte, A. A.; et al. A global analysis of Spitzer and new HARPS data confirms the loneliness and metal-richness of GJ 436 b. Astronomy and Astrophysics. 2014, 572. A73 [2022-11-28]. Bibcode:2014A&A...572A..73L. S2CID 55405647. arXiv:1409.4038 . doi:10.1051/0004-6361/201424373. （原始内容存档于2022-10-06）.