This is a list of exoplanets detected by gravitational microlensing. The phenomenon results in the background star's light being warped around a foreground object, causing a distorted image. If the foreground object is a star with an orbiting planet, we would observe an abnormally bright image. By comparing the luminosity and light distortion of the background star to theoretical models, we can estimate the planet's mass and the distance from its star.
The least massive planet detected by microlensing is KMT-2020-BLG-0414Lb, which has a mass about 0.960 times the mass of earth, or OGLE-2016-BLG-0007Lb, which has a mass about 1.32 times the mass of earth. The widest separation between a planet and a star is OGLE-2008-BLG-092Lb, which is 15 AU; the shortest separation is KMT-2020-BLG-0414Lc, which is 0.12 AU. There are 9 known multi-planetary systems detected by microlensing, all of which have two planets.
List Yellow rows denote the members of multi-planet systems. Green rows denote the members of multi-star systems. Planet Mass () Projected separation (AU) Period (d) Eccentricity Inclination (°) Year of discovery OGLE-2003-BLG-235Lb 2.6 5.1 2004 OGLE-2005-BLG-071Lb 3.5 3.6 ~ 3600 2005 OGLE-2005-BLG-390Lb 0.017 2.1 3500 2005 OGLE-2005-BLG-169Lb 0.04 2.8 3300 2006 OGLE-2006-BLG-109Lb 0.727 2.3 1790 64 2008 OGLE-2006-BLG-109Lc 0.271 4.5 4931 0.15 64 2008 MOA-2007-BLG-192Lb 0.01 0.66 2008 MOA-2007-BLG-400Lb 0.9 0.85 2008 MOA-2008-BLG-310Lb 0.23 1.25 2009 OGLE-2007-BLG-368Lb 0.0694 3.3 2009 MOA-2009-BLG-319Lb 0.157 2.0 2010 MOA-2009-BLG-387Lb 2.6 1.8 1970 2011 MOA-2009-BLG-266Lb 0.0327 3.2 2780 2011 MOA-2011-BLG-293Lb 2.4 1.0 2012 MOA-bin-1Lb 3.7 8.3 2012 MOA-2010-BLG-477Lb 1.5 2±1 2012 OGLE-2012-BLG-0026Lb 0.11 3.82 ~3000 2012 OGLE-2012-BLG-0026Lc 0.68 4.63 ~4000 2012 MOA-2010-BLG-073Lb 11 1.21 2012 OGLE-2011-BLG-0251Lb 0.53±0.21 2.72±0.75 or 1.5±0.5 2013 OGLE-2012-BLG-0406Lb 2.73±0.43 3.45±0.26 2013 OGLE-2012-BLG-0358Lb 1.9±0.2 0.87 2013 MOA-2010-BLG-328Lb 0.03 ± 0.0075 0.92 2013 MOA-2011-BLG-322Lb 11.6 4.3 2013 MOA-2008-BLG-379Lb 5±2.5 4±1.6 2013 MOA-2011-BLG-262LbThe nature of the observed system is unclear. It is either a rogue planet with about masses and a exomoon or a red dwarf with planet. ~0.053 or ~0.0015 ~0.95 or ~0.13 2013 MOA-2013-BLG-220Lb 2.74 3.03 2014 OGLE-2008-BLG-355Lb 4.6 1.7 2014 OGLE-2013-BLG-0341LBb 0.00522 0.702 2014 OGLE-2013-BLG-0102Lb 13.6 0.8 2014 OGLE-2008-BLG-092Lb 0.137 15 2014 OGLE-2014-BLG-0124Lb 0.51±0.16 3.1±0.5 ~2400 2014 OGLE-2011-BLG-0265Lb 1.0 ± 0.3 2 2014 OGLE-2012-BLG-0563Lb 0.39 0.74 2015 OGLE-2015-BLG-0966Lb 0.066 2.7 2015 MOA-2010-BLG-353Lb 0.27 1.72 2015 MOA-2013-BLG-605Lb 0.0102 0.93 2015 MOA-2011-BLG-028Lb 0.09 4.14 2015 OGLE-2015-BLG-0954Lb 3.4 1.6 2016 OGLE-2014-BLG-1760Lb 0.56 1.75 2016 OGLE-2012-BLG-0724Lb 0.47 1.6 2016 OGLE-2015-BLG-0051Lb 0.72 0.73 2016 OGLE-2012-BLG-0950Lb 0.079 2.2 2016 OGLE-2007-BLG-349L(AB)b 0.25 2.59 2557 2016 OGLE-2014-BLG-0676Lb 3.68 4.53 2016 OGLE-2016-BLG-1195Lb 0.0312 2.62 2017 MOA-2012-BLG-505Lb 0.0211 0.9 2017 MOA-2012-BLG-006Lb 8.4 10.2 2017 MOA-2016-BLG-227Lb 2.8 1.39 2017 OGLE-2013-BLG-0132Lb 0.29 3.6 2017 OGLE-2013-BLG-1721Lb 0.64 2.6 2017 OGLE-2016-BLG-0263Lb 4.1 5.4 2017 OGLE-2016-BLG-0613L(AB)b 4.18 6.4 2017 OGLE-2016-BLG-1190Lb 13.38 2.17 1220 0.42 41.2 2017 UKIRT-2017-BLG-001Lb 1.28 4.18 2018TCP J05074264+2447555b0.06290.9402018OGLE-2017-BLG-1522Lb0.750.592018OGLE-2017-BLG-1434Lb2018 OGLE-2017-BLG-1140Lb1.591.022018OGLE-2017-BLG-0482Lb0.0281.82018OGLE-2017-BLG-0373Lb0.4012.4242018OGLE-2017-BLG-0173Lb0.010293.9132018OGLE-2014-BLG-1722Lb0.1741.52018OGLE-2014-BLG-1722Lc0.2631.72018OGLE-2013-BLG-1761Lb2.71.82018OGLE-2011-BLG-0173Lb0.1982018MOA-2016-BLG-319Lb0.620.952018MOA-2015-BLG-337Lb0.1060.242018MOA-2011-BLG-291Lb0.0570.692018MOA-2010-BLG-117Lb0.542.422018KMT-2017-BLG-0165Lb0.113.452018KMT-2016-BLG-2142Lb15.490.832018KMT-2016-BLG-1820Lb4.571.082018KMT-2016-BLG-1397Lb7.05.12018KMT-2016-BLG-0212Lb182.22018OGLE-2018-BLG-1011Lb1.81.82019OGLE-2018-BLG-1011Lc2.80.82019OGLE-2018-BLG-0740Lb4.85.0548002019OGLE-2018-BLG-0596Lb0.043830.972019OGLE-2016-BLG-1067Lb0.431.702019OGLE-2015-BLG-1670Lb0.05632.622019OGLE-2015-BLG-1649Lb2.542.072019OGLE-2013-BLG-0911Lb9.510.392019 MOA-bin-29Lb 0.6 0.48 2019KMT-2018-BLG-1990Lb0.6051.0832019KMT-2017-BLG-1146Lb0.711.62019KMT-2017-BLG-1038Lb2.01.82019KMT-2016-BLG-1836Lb2.23.52019KMT-2016-BLG-1107Lb3.2830.3422019OGLE-2018-BLG-1700Lb4.402.82020OGLE-2018-BLG-1269Lb0.674.512020OGLE-2018-BLG-0677Lb0.01250.632020OGLE-2018-BLG-0532Lb0.019601.0642020OGLE-2017-BLG-1375Lb11.283.042020OGLE-2017-BLG-1049Lb5.533.922020OGLE-2017-BLG-0604Lb0.514.062020OGLE-2017-BLG-0406Lb0.413.52020OGLE-2016-BLG-1227Lb0.793.42020OGLE-2015-BLG-1771Lb0.4330.852020OGLE-2012-BLG-0838Lb0.1674.432020OGLE-2006-BLG-284LAb0.4532.17 2020KMT-2019-BLG-1953Lb0.642020KMT-2019-BLG-1339Lb1.252.152020KMT-2019-BLG-0842Lb0.032343.312020KMT-2018-BLG-1292Lb4.426.032020KMT-2018-BLG-0748Lb0.190.622020KMT-2018-BLG-0029Lb0.02394.272020KMT-2016-BLG-2397Lb2.633.642020KMT-2016-BLG-2364Lb3.932.632020OGLE-2019-BLG-1053Lb0.007803.42021OGLE-2019-BLG-0960Lb0.00791.902021OGLE-2019-BLG-0954Lb14.22.652021OGLE-2019-BLG-0304Lb0.5101.232021OGLE-2019-BLG-0299Lb6.2202.802021OGLE-2017-BLG-1099Lb3.022.732021OGLE-2018-BLG-1428Lb0.773.302021OGLE-2018-BLG-1185Lb0.02641.542021OGLE-2018-BLG-0962Lb1.343.592021OGLE-2018-BLG-0567Lb0.322.722021KMT-2017-BLG-2509Lb2.092.142021KMT-2018-BLG-1976Lb2.223.542021KMT-2018-BLG-1996Lb1.094.272021KMT-2021-BLG-0322Lb6.402021KMT-2020-BLG-0414Lb0.003021.262021KMT-2020-BLG-0414Lc270.122021KMT-2019-BLG-1715Lb2.563.322021 KMT-2019-BLG-0371Lb 7.7 0.79 2021KMT-2018-BLG-1743Lb0.2451.4492021KMT-2018-BLG-1025Lb0.0190641.3052021KMT-2016-BLG-2605Lb0.77100.6812021OGLE-2019-BLG-1470L(AB)c2.23.22022OGLE-2019-BLG-1492Lb0.1172.72022OGLE-2018-BLG-0977Lb0.02012.02022OGLE-2018-BLG-0516Lb0.06322.22022OGLE-2018-BLG-0506Lb0.05133.02022OGLE-2019-BLG-0468Lb3.433.292022OGLE-2019-BLG-0468Lc10.222.772022OGLE-2019-BLG-0362Lb3.262.182022OGLE-2018-BLG-1647Lb0.9701.362022OGLE-2018-BLG-1367Lb0.9501.212022OGLE-2018-BLG-1126Lb0.0563.232022OGLE-2018-BLG-1119Lb0.9104.062022OGLE-2018-BLG-0298Lb0.142.862022OGLE-2018-BLG-0383Lb0.02011.82022OGLE-2017-BLG-1691Lb0.0462.412022OGLE-2018-BLG-0799Lb0.261.282022OGLE-2018-BLG-0932Lb0.8901.752022OGLE-2018-BLG-1212Lb0.201.682022OGLE-2016-BLG-1093Lb0.712.132022OGLE-2014-BLG-0319Lb0.573.492022MOA-2020-BLG-135Lb0.03561.112022MOA-2019-BLG-008Lb182022KMT-2019-BLG-0253Lb0.04881.12022KMT-2021-BLG-2294Lb0.0701.152022KMT-2021-BLG-1898Lb0.7301.92022KMT-2021-BLG-1689Lb0.142.52022KMT-2021-BLG-0119Lb5.522.922022KMT-2021-BLG-0192Lb0.111.622022KMT-2021-BLG-0171Lb0.03523.52022KMT-2021-BLG-1303Lb0.382.892022KMT-2021-BLG-0320Lb0.101.542022KMT-2021-BLG-1554Lb0.120.722022KMT-2021-BLG-1391Lb0.01432.292022KMT-2021-BLG-1372Lb0.19282.372022KMT-2021-BLG-1253Lb0.059941.522022KMT-2019-BLG-0953Lb0.02893.12022KMT-2021-BLG-0748Lb0.452.432022KMT-2021-BLG-1077Lb0.221.262022KMT-2021-BLG-1077Lc0.250.9302022KMT-2021-BLG-0912Lb0.008843.142022KMT-2021-BLG-0240Lb0.212.82022KMT-2021-BLG-2974Lb0.282.02022KMT-2019-BLG-1552Lb4.052.62022KMT-2019-BLG-1042Lb0.191.72022KMT-2018-BLG-1988Lb0.01753.092022KMT-2019-BLG-0414Lb4.571.162022KMT-2017-BLG-0673Lb3.672.342022KMT-2018-BLG-0087Lb0.230.8702022KMT-2018-BLG-0030Lb1.454.392022KMT-2018-BLG-0247Lb2.112.462022KMT-2018-BLG-2602Lb1.153.812022OGLE-2019-BLG-1180Lb1.7475.192023OGLE-2019-BLG-0679Lb3.346.992023OGLE-2019-BLG-0249Lb7.121.842023OGLE-2017-BLG-1806Lb0.01661.752023MOA-2022-BLG-249Lb0.01521.632023MOA-2020-BLG-208Lb0.142.742023KMT-2022-BLG-1013Lb0.311.382023KMT-2022-BLG-0440Lb0.04851.92023KMT-2022-BLG-0371Lb0.263.022023KMT-2021-BLG-2478Lb0.9001.852023KMT-2021-BLG-2010Lb1.071.792023KMT-2021-BLG-1770Lb210.9002023KMT-2021-BLG-1547Lb1.474.52023KMT-2021-BLG-1150Lb0.8804.52023KMT-2021-BLG-1105Lb1.303.542023KMT-2021-BLG-0909Lb1.261.752023KMT-2021-BLG-0712Lb0.12022.222023KMT-2019-BLG-2783Lb1.161.852023KMT-2019-BLG-1806Lb0.01473.022023KMT-2019-BLG-1367Lb0.01281.702023KMT-2019-BLG-1216Lb0.09402.442023KMT-2019-BLG-0335Lb211.642023KMT-2019-BLG-0298Lb1.815.672023KMT-2019-BLG-0297Lb190.9602023KMT-2018-BLG-0885Lb291.072023KMT-2017-BLG-1194Lb0.01111.782023KMT-2017-BLG-1003Lb0.016331.382023KMT-2017-BLG-0428Lb0.01761.812023KMT-2016-BLG-1105Lb0.007302.442023K2-2016-BLG-0005Lb1.104.1647002023OGLE-2017-BLG-1275Lb5.902.092024OGLE-2017-BLG-1237Lb3.802.532024OGLE-2017-BLG-0640Lb1.621.142024OGLE-2017-BLG-0448L b0.04915.752024OGLE-2016-BLG-1800L b2.59±1.461.88±0.512024OGLE-2016-BLG-1598L b0.38±0.302.50±0.882024OGLE-2014-BLG-0221L b4.353.762024MOA-2022-BLG-563L b0.402.152024MOA-2016-BLG-526L b0.047±0.0212.07±0.352024KMT-2024-BLG-1044L b0.024382024KMT-2023-BLG-1866L b0.008272.632024KMT-2023-BLG-1743L b201.162024KMT-2023-BLG-1642L b1.081.412024KMT-2023-BLG-1454L b0.6301.182024KMT-2023-BLG-1431L b0.04283.22024KMT-2023-BLG-0735L b0.122±0.0682.962024KMT-2023-BLG-0469L b0.1242.312024KMT-2023-BLG-0416L b0.0412.962024KMT-2022-BLG-2286L b192.022024KMT-2022-BLG-0303L b0.5134.812024KMT-2021-BLG-2609L b0.0322.302024KMT-2016-BLG-2321L b0.950±0.4103.58±0.812024Gaia22dkvL b0.5911.402024OGLE-2016-BLG-0007L b0.0041510.1142002025KMT-2021-BLG-0736L b0.0664.02025KMT-2019-BLG-0578L b1.22.0±0.32025 AT2021ueyL b1.344.014168.692025KMT-2017-BLG-2197L b8.84015.912025KMT-2022-BLG-1790L b1.735.252025KMT-2023-BLG-0119L b0.263353.142025KMT-2022-BLG-2076L b0.8805.672025KMT-2023-BLG-0548L b3.426.852025KMT-2023-BLG-0830L b0.0561.702025KMT-2023-BLG-0949L b5.9802.032025KMT-2023-BLG-1896L b0.051442.862025KMT-2023-BLG-2209L b0.800±0.3803.512025KMT-2024-BLG-0404L b27.240.85±0.112025KMT-2024-BLG-0404L c0.05442025KMT-2024-BLG-1005L b210.782025KMT-2024-BLG-1209L b2.642.512025KMT-2024-BLG-1281L b0.06001.962025KMT-2024-BLG-2059L b0.0222.552025KMT-2024-BLG-2242L b0.0440.890±0.1202025MOA-2022-BLG-033L b0.038232.152025MOA-2022-BLG-091L b3.593.442025OGLE-2015-BLG-1609L b0.2402025OGLE-2016-BLG-0007L b0.0041510.1142002025KMT-2022-BLG-1818L b4.002.6±0.92026KMT-2022-BLG-1818L c0.3612.62026
Candidate rogue planets
A number of candidate rogue planets have been detected by microlensing.
Planet Mass Year of discovery MOA-2011-BLG-274L 2014 OGLE-2016-BLG-1540L 2017 OGLE-2012-BLG-1323L 2018 OGLE-2017-BLG-0560L 2018 OGLE-2019-BLG-0551L 2020 KMT-2019-BLG-2073L 2020 OGLE-2016-BLG-1928L 2020 KMT-2017-BLG-2820L 2020
Unconfirmed detections
Some microlensing events, such as MACHO-98-BLG-35 and PA-99-N2, suggest the possible presence of a planetary companion to the lensing star, but this is unconfirmed. Since microlensing relies on a one-time chance alignment, it is likely not possible to confirm these detections.
In some cases, a planetary interpretation for a microlensing event was proposed, but has been disproven. MACHO-1997-BLG-41 was initially interpreted as a binary star system orbited by a circumbinary planet, but a different model with two stars and no planet was later found to be a better fit to the data. Similarly, OGLE-2013-BLG-0723L was initially interpreted as a binary system of a star and a brown dwarf, with a low-mass planet orbiting the brown dwarf, but a model where the system consists of two low-mass stars with no planet was found to be a better fit to the data.
See also Lists of exoplanets Method of exoplanet detection using microlensing
Notes
References Data catalog:
External links