This List of exoplanets discovered in 2018 is a list of confirmed
exoplanets
An exoplanet or extrasolar planet is a planet outside the Solar System. The first possible evidence of an exoplanet was noted in 1917 but was not recognized as such. The first confirmation of detection occurred in 1992. A different planet, init ...
that were first observed during 2018.
For exoplanets detected only by radial velocity, the listed value for mass is a lower limit. See
Minimum mass
In astronomy, minimum mass is the lower-bound calculated mass of observed objects such as planets, stars and binary systems, nebulae, and black holes.
Minimum mass is a widely cited statistic for extrasolar planets detected by the radial veloc ...
for more information.
,
, style="background:#FFFF00", transit
, 750.6
, 0.881
, 5580
,
[
, -
, K2-174b
,
, 0.2223
, 19.56274
, 0.1242
,
, style="background:#FFFF00", transit
, 326.9
, 0.668
, 4500
, ][
, -
, K2-175b
,
, 0.182
, 9.5260
, 0.0906
,
, style="background:#FFFF00", transit
, 812.2
, 1.095
, 5909
, ][
, -
, K2-176b
,
, 0.1330
, 5.32944
, 0.05846
,
, style="background:#FFFF00", transit
, 812
, 0.939
, 5428
, ][
, -
, K2-177b
,
, 0.189
, 14.1552
, 0.1221
,
, style="background:#FFFF00", transit
, 1628
, 1.211
, 6063
, ][
, -
, K2-178b
,
, 0.317
, 8.74782
, 0.08171
,
, style="background:#FFFF00", transit
, 704.7
, 0.951
, 5525
, ][
, -
, K2-179b
,
, 0.224
, 5.17219
, 0.05488
,
, style="background:#FFFF00", transit
, 625.7
, 0.824
, 5015
, ][
, -
, K2-180b
,
, 0.2150
, 8.86593
, 0.07550
,
, style="background:#FFFF00", transit
, 668.9
, 0.730
, 5263
, ][
, -
, K2-181b
,
, 0.241
, 6.89425
, 0.07191
,
, style="background:#FFFF00", transit
, 1189
, 1.044
, 5609
, ][
, -
, K2-182b
, 0.063
, 0.2469
, 4.736884
, 0.05223
,
, style="background:#FFFF00", transit
, 507.2
, 0.847
, 5159
, ][Confirmed in 2021.][
, -
, K2-183c
,
, 0.224
, 10.79347
, 0.09371
,
, style="background:#FFFF00", transit
, 1083
, 0.942
, 5482
, ][
, -
, K2-183d
,
, 0.227
, 22.6295
, 0.1535
,
, style="background:#FFFF00", transit
, 1083
, 0.942
, 5482
, ][
, -
, K2-184b
,
, 0.1372
, 16.99344
, 0.1210
,
, style="background:#FFFF00", transit
, 247.1
, 0.819
, 5252
, ][
, -
, K2-185b
,
, 0.117
, 10.6166
, 0.09378
,
, style="background:#FFFF00", transit
, 882
, 0.976
, 5722
, ][
, -
, K2-186b
,
, 0.283
, 41.4742
, 0.2359
,
, style="background:#FFFF00", transit
, 1089
, 1.019
, 5784
, ][
, -
, K2-187b
,
, 0.123
, 0.773981
,
,
, style="background:#FFFF00", transit
,
, 0.97
, 5477
, ][
, -
, K2-187c
,
, 0.152
, 2.87179
, 0.03910
,
, style="background:#FFFF00", transit
, 1089
, 0.967
, 5477
, ][
, -
, K2-187d
,
, 0.287
, 7.14908
, 0.07182
,
, style="background:#FFFF00", transit
, 1089
, 0.967
, 5477
, ][
, -
, K2-187e
,
, 0.201
, 13.6083
, 0.11031
,
, style="background:#FFFF00", transit
, 1089
, 0.967
, 5477
, ][
, -
, K2-188b
,
, 0.112
, 1.74298
, 0.02932
,
, style="background:#FFFF00", transit
, 1476
, 1.107
, 5982
, ][
, -
, K2-188c
,
, 0.234
, 7.80760
, 0.07967
,
, style="background:#FFFF00", transit
, 1476
, 1.107
, 5982
, ][
, -
, K2-189b
,
, 0.1349
, 5.17630
, 0.05711
,
, style="background:#FFFF00", transit
, 795.2
, 0.928
, 5503
, ][
, -
, K2-189c
,
, 0.222
, 6.67934
, 0.06769
,
, style="background:#FFFF00", transit
, 795.2
, 0.928
, 5503
, ][
, -
, K2-190b
,
, 0.1210
, 10.09886
, 0.0884
,
, style="background:#FFFF00", transit
, 526.5
, 0.905
, 5631
, ][
, -
, K2-190c
,
, 0.0975
, 21.5740
, 0.1467
,
, style="background:#FFFF00", transit
, 526.5
, 0.905
, 5631
, ][
, -
, K2-191b
,
,
, 0.04885
,
, style="background:#FFFF00", transit
, 1071
, 1.022
, 5753
, ][
, -
, K2-219c
,
, 0.128
, 6.6677
, 0.06982
,
, style="background:#FFFF00", transit
, 1071
, 1.022
, 5753
, ][
, -
, K2-219d
,
, 0.230
, 11.13728
, 0.09830
,
, style="background:#FFFF00", transit
, 1071
, 1.022
, 5753
, ][
, -
, K2-220b
,
, 0.198
, 13.68251
, 0.11043
,
, style="background:#FFFF00", transit
, 766.7
, 0.960
, 5599
, ][
, -
, K2-221b
,
, 0.1498
, 2.39909
, 0.03520
,
, style="background:#FFFF00", transit
, 1049
, 1.011
, 5716
, ][
, -
, K2-222b
, 0.0252
, 0.210
, 15.38883
, 0.1190
,
, style="background:#FFFF00", transit
, 331.4
, 0.950
, 5934
, ][
, -
, K2-223c
,
, 0.144
, 4.56417
, 0.05491
,
, style="background:#FFFF00", transit
, 651.3
, 1.06
, 5835
, ][
, -
, K2-224b
,
, 0.139
, 4.47859
, 0.05422
, 1002
, style="background:#FFFF00", transit
, 904.8
, 0.91
, 5620
, ][
, -
, K2-224c
,
, 0.215
, 10.0949
, 0.08858
, 764
, style="background:#FFFF00", transit
, 904.8
, 0.91
, 5620
, ][
, -
, K2-225b
,
, 0.311
, 15.8715
, 0.13385
, 902
, style="background:#FFFF00", transit
, 1179
, 1.27
, 5742
, ][
, -
, K2-226b
,
, 0.137
, 3.27111
, 0.04133
, 1120
, style="background:#FFFF00", transit
, 693
, 0.88
, 5424
, ][
, -
, K2-227b
,
, 0.149
, 13.6218
, 0.1098
,
, style="background:#FFFF00", transit
, 613.9
, 0.951
, 5673
, ][
, -
, K2-228b
,
, 0.108
, 2.69837
, 0.0338
, 914
, style="background:#FFFF00", transit
, 423
, 0.71
, 4715
, ][
, -
, K2-229b
, 0.0082
, 0.102
, 0.584249
, 0.012888
, 1818
, style="background:#FFFF00", transit
, 335.5
, 0.87
, 5315
, ][
, -
, K2-229c
, 0.067
, 0.181
, 8.32801
, 0.0769
, 750
, style="background:#FFFF00", transit
, 335.5
, 0.87
, 5315
, ][
, -
, K2-230b
,
, 0.175
, 2.86064
, 0.0409
, 1529
, style="background:#FFFF00", transit
, 1791
, 1.11
, 5945
, ][
, -
, K2-231b
,
, 0.22
, 13.8419
, 0.1132
,
, style="background:#FFFF00", transit
, 1057
, 1.01
, 5695
,
, -
, K2-232b
, 0.398
, 1.000
, 11.168459
, 0.10356
, 1001
, style="background:#FFFF00", transit
, 427.9
, 1.188
, 6154
,
, -
, K2-233b
,
, 0.1247
, 2.46746
, 0.03317
, 1040
, style="background:#FFFF00", transit
, 220.60
, 0.800
, 4950
,
, -
, K2-233c
,
, 0.1191
, 7.06142
, 0.06687
, 728
, style="background:#FFFF00", transit
, 220.60
, 0.800
, 4950
,
, -
, K2-233d
,
, 0.236
, 24.3662
, 0.1527
, 482
, style="background:#FFFF00", transit
, 220.60
, 0.800
, 4950
,
, -
, K2-236b
, 0.085
, 0.546
, 19.49213
, 0.148
, 886
, style="background:#FFFF00", transit
, 595.7
, 1.18
, 6025
, First exoplanet discovered by scientists based in India.
, -
, K2-237b
, 1.60
, 1.65
, 2.18056
, 0.037
, 1884
, style="background:#FFFF00", transit
, 1036
, 1.28
, 6257
, Also called EPIC 229426032 b
, -
, K2-238b
, 0.86
, 1.30
, 3.20466
, 0.046
, 1587
, style="background:#FFFF00", transit
, 22000
, 1.19
, 5630
, Also called EPIC 246067459 b
, -
, K2-239b
, 0.0044
, 0.098
, 5.240
, 0.0441
, 502
, style="background:#FFFF00", transit
, 101.48
, 0.40
, 3420
,
, -
, K2-239c
, 0.0028
, 0.089
, 7.775
, 0.0576
, 427
, style="background:#FFFF00", transit
, 101.48
, 0.40
, 3420
,
, -
, K2-239d
, 0.0041
, 0.098
, 10.115
, 0.0685
, 399
, style="background:#FFFF00", transit
, 101.48
, 0.40
, 3420
,
, -
, K2-240b
, 0.016
, 0.18
, 6.034
, 0.0513
, 586
, style="background:#FFFF00", transit
, 238.3
, 0.58
, 3810
,
, -
, K2-240c
, 0.014
, 0.16
, 20.523
, 0.1159
, 389
, style="background:#FFFF00", transit
, 238.3
, 0.58
, 3810
,
, -
, ]K2-241b
K, or k, is the eleventh letter in the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is ''kay'' (pronounced ), plural ''kays''. The letter K u ...
,
, 0.227
, 26.8199
, 0.1567
, 507
, style="background:#FFFF00", transit
, 489.6
, 0.71
, 5262
,
, -
, K2-242b
,
, 0.227
, 6.51389
, 0.0494
, 416
, style="background:#FFFF00", transit
, 357.4
, 0.38
, 3459
,
, -
, K2-243b
,
, 0.194
, 11.5418
, 0.1087
, 1035
, style="background:#FFFF00", transit
, 877
, 1.29
, 6570
,
, -
, K2-243c
,
, 0.179
, 24.9460
, 0.1817
, 801
, style="background:#FFFF00", transit
, 877
, 1.29
, 6570
,
, -
, K2-244b
,
, 0.156
, 21.0688
, 0.1418
, 638
, style="background:#FFFF00", transit
, 698.6
, 0.86
, 5677
,
, -
, K2-245b
,
, 0.387
, 11.89307
, 0.0959
, 923
, style="background:#FFFF00", transit
, 1507
, 0.83
, 5793
,
, -
, K2-246b
,
, 0.311
, 5.76918
, 0.0602
, 977
, style="background:#FFFF00", transit
, 2341
, 0.87
, 5610
,
, -
, K2-247b
,
, 0.189
, 2.25021
, 0.0304
, 979
, style="background:#FFFF00", transit
, 848.1
, 0.74
, 4667
,
, -
, K2-247c
,
, 0.195
, 6.4942
, 0.0615
, 688
, style="background:#FFFF00", transit
, 848.1
, 0.74
, 4667
,
, -
, K2-248b
,
, 0.229
, 7.1726
, 0.0699
, 886
, style="background:#FFFF00", transit
, 1341
, 0.88
, 5528
,
, -
, K2-249b
,
, 0.249
, 12.4090
, 0.1151
, 1061
, style="background:#FFFF00", transit
, 1726
, 1.32
, 6504
,
, -
, K2-250b
,
, 0.218
, 4.01457
, 0.0459
, 958
, style="background:#FFFF00", transit
, 1369
, 0.80
, 5172
,
, -
, K2-251b
,
, 0.210
, 9.3008
, 0.0694
, 437
, style="background:#FFFF00", transit
, 481.6
, 0.52
, 3717
,
, -
, K2-252b
,
, 0.155
, 13.8151
, 0.1041
, 639
, style="background:#FFFF00", transit
, 751.3
, 0.79
, 5152
,
, -
, K2-253b
,
, 1.130
, 4.00167
, 0.0506
, 1238
, style="background:#FFFF00", transit
, 2933
, 1.08
, 6027
,
, -
, K2-254b
,
, 0.145
, 4.09639
, 0.0448
, 791
, style="background:#FFFF00", transit
, 747.8
, 0.71
, 4629
,
, -
, K2-254c
,
, 0.195
, 12.1184
, 0.0923
, 551
, style="background:#FFFF00", transit
, 747.8
, 0.71
, 4629
,
, -
, K2-255b
,
, 0.259
, 1.96417
, 0.0274
, 1034
, style="background:#FFFF00", transit
, 628.4
, 0.71
, 4676
,
, -
, K2-256b
,
, 0.235
, 5.5201
, 0.0578
, 845
, style="background:#FFFF00", transit
, 1871
, 0.84
, 5219
,
, -
, K2-257b
,
, 0.074
, 1.60588
, 0.0216
, 789
, style="background:#FFFF00", transit
, 209.14
, 0.52
, 3725
,
, -
, K2-258b
,
, 0.268
, 19.0921
, 0.1490
,
Specific exoplanet lists
References
{{Exoplanet
2018
File:2018 Events Collage.png, From top left, clockwise: The 2018 Winter Olympics opening ceremony in PyeongChang, South Korea; Protests erupt following the Assassination of Jamal Khashoggi; March for Our Lives protests take place across the United ...
*
exoplanets
An exoplanet or extrasolar planet is a planet outside the Solar System. The first possible evidence of an exoplanet was noted in 1917 but was not recognized as such. The first confirmation of detection occurred in 1992. A different planet, init ...