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A size comparison of the planets in the Kepler-37 system and objects in the Solar System
Below is a list of the smallest exoplanets so far discovered, in terms of physical size, ordered by radius.
The sizes are listed in units of Earth radii (R 🜨 ). All planets listed are smaller than Earth and Venus , up to 0.7 Earth radii . The NASA Exoplanet Archive is used as the main data source.[1] [2]
Excluded objects [ edit ]
Kepler-37e is listed with a radius of 0.37± 0.18 R 🜨 in the Exoplanet Archive based on KOI data, but the existence of this planet is doubtful,[19] and assuming its existence, a 2023 study found a mass of 8.1± 1.7 M 🜨 , inconsistent with such a small radius.[20]
KOI-6705.01, listed as a potential very small planet in the KOI dataset, was shown to be a false positive in 2016.[21]
Kepler and TESS candidates [ edit ]
Below shows a list of Kepler and TESS candidates below 0.7 R 🜨 that have yet to be confirmed.
Kepler object of interest
Radius (R 🜨 )
Notes and references
KOI-4582.01
0.35[22]
KOI-2298.03
0.36[22]
KIC 1718360.01
0.366[23]
KOI-2169.04
0.37[22]
KOI-7174.01
0.37[22]
KOI-8012.01
0.42[22]
KOI-6860.01
0.43[22]
KOI-2059.02
0.44[22]
KOI-304.02
0.46[22]
KOI-7793.01
0.46[22]
KOI-2678.02
0.48[22]
KOI-6631.01
0.48[22]
KOI-2421.02
0.48[22]
KOI-5974.01
0.49[22]
KOI-3444.03
0.5[22]
KOI-2295.01
0.52[22]
KOI-7863.01
0.52[22]
KOI-2612.02
0.53[22]
KOI-4657.01
0.54[22]
KOI-8257.01
0.54[22]
KOI-115.03 (Kepler-105d)
0.55+0.08 −0.07
[24]
KOI-2421.01
0.55[22]
KOI-4097.02
0.55[22]
KOI-7645.01
0.55[22]
KOI-3208.01
0.56[22]
KOI-6763.01
0.56[22]
KOI-2859.03
0.57[22]
KOI-4146.02
0.57[22]
KOI-2859.04
0.57[22]
KOI-7873.01
0.57[22]
TOI-4307.02
0.57± 0.14[25]
KOI-2657.01
0.58[22]
KOI-8277.01
0.58[22]
KOI-4296.01
0.59[22]
KOI-3196.01
0.59[22]
KOI-5692.01
0.59[22]
KOI-1964.01
0.6[22]
KOI-4407.01
0.6[22]
KOI-4871.01
0.6[22]
KOI-5211.01
0.6[22]
KOI-7888.01
0.6[22]
KOI-3184.03
0.6[22]
KOI-8183.01
0.6[22]
KOI-3083.02
0.61[22]
KOI-4421.01
0.61[22]
KOI-4716.01
0.61[22]
KOI-3102.01
0.61[22]
KOI-7032.01
0.61[22]
KOI-1843.03
0.61+0.12 −0.08
[26]
KOI-1499.02
0.62[22]
KOI-605.02
0.62[22]
KOI-7676.01
0.62[22]
KOI-4849.01
0.62[22]
KOI-365.02
0.62[22]
KOI-7116.01
0.62[22]
KOI-4421.02
0.62[22]
KOI-7949.01
0.62[22]
KOI-2029.04
0.63[22]
KOI-6889.01
0.63[22]
KOI-2636.02
0.63[22]
KOI-3248.01
0.64[22]
KOI-5213.01
0.64[22]
KOI-6276.01
0.64[22]
KOI-7617.01
0.64[22]
KOI-7903.01
0.64[22]
KOI-7925.01
0.64[22]
KOI-8174.01
0.64[22]
KOI-3083.03
0.65[22]
KOI-4875.01
0.65[22]
KOI-4808.01
0.65[22]
KOI-6568.01
0.65[22]
KOI-1619.01
0.66[22]
KOI-3111.02
0.66[22]
KOI-2859.05
0.66[22]
KOI-3017.01
0.67[22]
KOI-4907.01
0.67[22]
KOI-1616.02
0.67[22]
KOI-6299.01
0.67[22]
KOI-8211.01
0.67[22]
KOI-2593.02
0.68[22]
KOI-4605.01
0.68[22]
KOI-7832.01
0.68[22]
KOI-7483.01
0.68[22]
KOI-2623.02
0.68[22]
KOI-7924.01
0.68[22]
KOI-7628.01
0.69[22]
KOI-4129.01
0.69[22]
KOI-4822.01
0.69[22]
KOI-6600.01
0.69[22]
See also [ edit ]
References [ edit ]
^ a b Manser, Christopher J.; et al. (5 April 2019). "A planetesimal orbiting within the debris disc around a white dwarf star" . Science . 364 (6435): 66–69. arXiv :1904.02163 . Bibcode :2019Sci...364...66M . doi :10.1126/science.aat5330 . ISSN 0036-8075 . PMID 30948547 . S2CID 96434522 .
^ "Planet SDSS J1228+1040 b" . Extrasolar Planets Encyclopaedia . Retrieved 2019-08-05 .
^ a b Rappaport, S.; Gary, B. L. (June 2016). "Drifting asteroid fragments around WD 1145+017". Monthly Notices of the Royal Astronomical Society . 458 (4 ): 3904–3917. arXiv :1602.00740 . Bibcode :2016MNRAS.458.3904R . doi :10.1093/mnras/stw612 .
^ Simukoff, E.; et al. (2013). "Below One Earth Mass: The Detection, Formation, and Properties of Subterrestrial Worlds". Space Science Reviews . 180 (1–4): 71. arXiv :1308.6308 . Bibcode :2013SSRv..180...71S . doi :10.1007/s11214-013-0019-1 . S2CID 118597064 .
^ a b c Bonomo, A. S.; Dumusque, X.; et al. (September 2023). "Cold Jupiters and improved masses in 38 Kepler and K2 small planet systems from 3661 HARPS-N radial velocities. No excess of cold Jupiters in small planet systems". Astronomy & Astrophysics . 677 : A33. arXiv :2304.05773 . Bibcode :2023A&A...677A..33B . doi :10.1051/0004-6361/202346211 . S2CID 258078829 .
^ "Exoplanet-catalog" .
^ Ansdell, M.; Hirano, T.; Gaidos, E. (2019). "Monitoring of the D doublet of neutral sodium during transits of two 'evaporating' planets". Monthly Notices of the Royal Astronomical Society . 485 (3 ): 3876–3886. arXiv :1903.06217 . Bibcode :2019MNRAS.485.3876G . doi :10.1093/mnras/stz693 . [...]the radii are not known but are thought to be smaller than Mercury (0.36R⊕).
^ Garai, Z. (2018). "Light-curve analysis of KOI 2700b: The second extrasolar planet with a comet-like tail". Astronomy & Astrophysics . 611 : A63. arXiv :1712.07461 . Bibcode :2018A&A...611A..63G . doi :10.1051/0004-6361/201629676 . S2CID 118885868 . We confirmed the disintegrating-planet scenario of KOI 2700b.
^ a b c d Campante, T.; et al. (2015). "KOI-3158: The oldest known system of terrestrial-size planets". EPJ Web of Conferences . 101 : 02004. arXiv :1501.07869 . Bibcode :2015EPJWC.10102004C . doi :10.1051/epjconf/201510102004 . S2CID 16191462 .
^ 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 (2022). "A Hot Mars-sized Exoplanet Transiting an M Dwarf" . The Astronomical Journal . 163 (1 ): 3. arXiv :2112.03958 . Bibcode :2022AJ....163....3C . doi :10.3847/1538-3881/ac3088 . S2CID 244954104 .
^ "Kepler-1994" . NASA Exoplanet Archive . Retrieved 16 June 2023 .
^ Tey, Evan; Shporer, Avi; et al. (May 2024). "GJ 238 b: A 0.57 Earth Radius Planet Orbiting an M2.5 Dwarf Star at 15.2 pc" . The Astronomical Journal . 167 (6 ): 283. Bibcode :2024AJ....167..283T . doi :10.3847/1538-3881/ad3df1 .
^ "Kepler-1998" . NASA Exoplanet Archive . Retrieved 16 June 2023 .
^ Piaulet, Caroline; Benneke, Björn; et al. (15 December 2022). "Evidence for the volatile-rich composition of a 1.5-Earth-radius planet". Nature Astronomy . 7 : 206. arXiv :2212.08477 . Bibcode :2023NatAs...7..206P . doi :10.1038/s41550-022-01835-4 . S2CID 254764810 .
^ Silverstein, Michele L.; Barclay, Thomas; et al. (May 2024). "Validation of a Third Planet in the LHS 1678 System" . The Astronomical Journal . 167 (6 ): 255. arXiv :2403.00110 . Bibcode :2024AJ....167..255S . doi :10.3847/1538-3881/ad3040 .
^ Goffo, Elisa; Gandolfi, Davide; et al. (September 2023). "Company for the ultra-high density, ultra-short period sub-Earth GJ 367 b: discovery of two additional low-mass planets at 11.5 and 34 days" . The Astrophysical Journal Letters . 955 (1 ): L3. arXiv :2307.09181 . Bibcode :2023ApJ...955L...3G . doi :10.3847/2041-8213/ace0c7 .
^ 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. (2021), "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 , 507 (2 ): 1847–1868, arXiv :2107.13900 , Bibcode :2021MNRAS.507.1847R , doi :10.1093/mnras/stab2192
^ Weiss, Lauren M.; et al. (2024-01-01). "The Kepler Giant Planet Search. I. A Decade of Kepler Planet-host Radial Velocities from W. M. Keck Observatory" . The Astrophysical Journal Supplement Series . 270 (1 ) 8. arXiv :2304.00071 . Bibcode :2024ApJS..270....8W . doi :10.3847/1538-4365/ad0cab .
^ Gaidos, Eric; Mann, Andrew W.; Ansdell, Megan (January 2016). "The Enigmatic and Ephemeral M Dwarf System KOI 6705: Cheshire Cat or Wild Goose?" . The Astrophysical Journal . 817 (1 ): 50. arXiv :1511.06471 . Bibcode :2016ApJ...817...50G . doi :10.3847/0004-637X/817/1/50 .
^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al am an ao ap aq ar as at au av aw ax ay az ba bb bc bd be bf bg bh bi bj bk bl bm bn bo bp bq br bs bt bu bv bw bx by bz ca cb cc cd ce cf cg "NASA Exoplanet Archive" . NASA Exoplanet Archive . Retrieved 16 June 2023 .
^ Roche, Jakob (2024-06-07). "The Detection of KIC 1718360, A Rotating Variable with a Possible Companion, Using Machine Learning". arXiv :2405.05282 [astro-ph.EP ].
^ "Kepler-105" . NASA Exoplanet Archive . Retrieved 12 December 2021 .
^ "NASA Exoplanet Archive" . NASA Exoplanet Archive . Retrieved 16 June 2023 .
^ Price, Ellen M.; Rogers, Leslie A. (May 2020). "Tidally Distorted, Iron-enhanced Exoplanets Closely Orbiting Their Stars" . The Astrophysical Journal . 894 (1 ): 8. arXiv :1901.10666 . Bibcode :2020ApJ...894....8P . doi :10.3847/1538-4357/ab7c67 .
R e t r i e v e d f r o m " https://en.wikipedia.org/w/index.php?title=List_of_smallest_exoplanets&oldid=1232727660 "
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