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。

 列表 

以地球半徑為單位列出行星半徑（）。所有列出的系外行星都小於地球，最大為0.7地球半徑。是最主要的數據來源。

 系外行星  半徑 （） 註解和參考資料 SDSS J1228+1040 b(SDSS J122859.92+104033.0 b, WD 1226+110 b) 0.0101 Extrasolar planetesimal. Remnant iron core.PSR B1828-11 b0.016Unconfirmed, controversial Ceres 0.07466 Shown for comparison WD 1145+017 b ~0.15 Extrasolar planetesimal. Pluto 0.1825 Shown for comparison Moon 0.2739 Shown for comparison Kepler-37b  Smallest known exoplanet. Kepler-1520b ~0.3 Disintegrating planets with poorly known radii, all thought to be smaller than Mercury. KOI-2700b K2-22b PSR B1257+12 b (Draugr) ~0.338 Least massive known exoplanet, at 0.02 Earth masses. Radius estimated from mass-radius relationship. Kepler-37e  Dubious Mercury 0.3825 Shown for comparison Kepler-444b   Kepler-102b  Kepler-444c   Kepler-1971b (KOI-4777.01)   Kepler-1308b  Kepler-138b  Kepler-444d   Mars 0.5314 Shown for comparison Kepler-62c  Kepler-444e   KOI-115.03 (Kepler-105d)  Unconfirmed Kepler-42d  Kepler-102c  KOI-1843.03 0.59 Unconfirmed Kepler-1583b  Kepler-1087b  K2-89b  Kepler-1877b 0.624 Kepler-1371c  UCF-1.02 0.64 Dubious Kepler-1130d 0.645 Kepler-1351b  Kepler-1542c  UCF-1.01 0.65 Dubious Kepler-271d  Kepler-431c 0.668 Kepler-1558b  K2-116b  Kepler-141b   K2-297b (EPIC 201497682 b)  LHS 1678 b  Kepler-1349b  Kepler-378c  K2-266c  Kepler-1339b  Gliese 367 b  Smallest known exoplanet within 10 parsecs.

 相關條目 
 List of largest exoplanets
 系外行星列表

 參考資料 

Category:系外行星列表