Outer-Zone Exoplanets — 39 Worlds Outside the Liquid-Water…

39 confirmed exoplanets have been identified for outer zone. First confirmed in 2005; most recent in 2026.

Median radius

11.10 R⊕

Median mass

169.00 M⊕

Median distance

188.46 ly

Median ESI

0.40

Discovery Timeline

120051120143320164320181320214620234420251

Composition Breakdown

Gas Giant

22

56.4%

Sub-Neptune

7

17.9%

Rocky Terrestrial

4

10.3%

Neptune-like

4

10.3%

Super-Earth

2

5.1%

Host Spectral Class Mix

M-type red dwarf

13

K-type orange

13

G-type yellow (Sun-like)

12

F-type yellow-white

1

Most Earth-like in this Cohort

ESI 0.939

GJ 3323 c

Super-Earth · 1.32 R⊕ · 17.5 ly

ESI 0.729

TRAPPIST-1 g

Rocky Terrestrial · 1.13 R⊕ · 40.5 ly

ESI 0.686

GJ 1002 c

Rocky Terrestrial · 1.10 R⊕ · 15.8 ly

ESI 0.678

Wolf 1061 d

Sub-Neptune · 2.69 R⊕ · 14.0 ly

ESI 0.660

GJ 4274 c

Sub-Neptune · 2.83 R⊕ · 23.6 ly

ESI 0.645

Kepler-441 b

Super-Earth · 1.64 R⊕ · 874.1 ly

Cohort Extremes

Closest to Earth

Teegarden's Star d

12.5 ly

Largest radius

HD 94771 b

14.20 R⊕

Most massive

HD 62364 b

5,965.6 M⊕

Hottest equilibrium

Kepler-1704 b

254 K

Full Catalogue

Planet Host Type Year Radius (R⊕) Mass (M⊕) Distance (ly) ESI
GJ 3323 c GJ 3323 Super-Earth 2017 1.32 2.31 17.5 0.939
TRAPPIST-1 g TRAPPIST-1 Rocky Terrestrial 2017 1.13 1.32 40.5 0.729
GJ 1002 c GJ 1002 Rocky Terrestrial 2022 1.10 1.36 15.8 0.686
Wolf 1061 d Wolf 1061 Sub-Neptune 2015 2.69 7.70 14.0 0.678
GJ 4274 c GJ 4274 Sub-Neptune 2026 2.83 8.39 23.6 0.660
Kepler-441 b Kepler-441 Super-Earth 2015 1.64 3.33 874.1 0.645
GJ 514 b GJ 514 Sub-Neptune 2022 2.13 5.20 24.8 0.624
GJ 3138 d GJ 3138 Sub-Neptune 2017 3.23 10.50 92.9 0.614
Teegarden's Star d Teegarden's Star Rocky Terrestrial 2024 0.95 0.82 12.5 0.611
TRAPPIST-1 h TRAPPIST-1 Rocky Terrestrial 2017 0.76 0.33 40.5 0.601
Kepler-1630 b Kepler-1630 Sub-Neptune 2016 2.19 5.43 1,080.3 0.565
Kepler-1704 b Kepler-1704 Gas Giant 2013 11.95 1,322.17 2,724.9 0.493
GJ 3293 c GJ 3293 Neptune-like 2015 4.87 21.09 65.9 0.484
TOI-6478 b TOI-6478 Neptune-like 2025 4.60 19.20 125.9 0.459
Kepler-1536 b Kepler-1536 Sub-Neptune 2016 3.14 10.00 1,263.0 0.453
Kepler-421 b Kepler-421 Neptune-like 2014 4.16 16.10 1,136.8 0.442
BD-210397 c BD-210397 Gas Giant 2023 12.90 1,525.58 77.4 0.427
HD 80869 b HD 80869 Gas Giant 2021 12.80 1,609.80 278.5 0.409
TIC 139270665 c TIC 139270665 Gas Giant 2024 12.90 1,554.18 619.3 0.401
Kepler-1654 b Kepler-1654 Neptune-like 2018 9.18 158.92 1,852.9 0.396
TOI-4504 c TOI-4504 Gas Giant 2024 11.10 1,197.32 1,117.4 0.394
TOI-756 c TOI-756 Gas Giant 2025 13.00 1,287.21 281.1 0.383
HIP 54597 b HIP 54597 Gas Giant 2023 13.30 762.79 129.6 0.379
K2-73 c K2-73 Gas Giant 2025 13.00 1,142.00 878.0 0.366
HD 95544 b HD 95544 Gas Giant 2021 12.80 1,913.64 286.4 0.330
TOI-4010 e TOI-4010 Gas Giant 2023 13.30 692.00 578.9 0.322
HATS-59 c HATS-59 Gas Giant 2018 12.30 4,036.44 2,096.8 0.309
HD 62364 b HD 62364 Gas Giant 2022 12.10 5,965.64 173.2 0.299
HD 115954 b HD 115954 Gas Giant 2021 12.60 2,685.65 285.9 0.291
BD-210397 b BD-210397 Gas Giant 2023 14.00 214.00 77.4 0.277
Kepler-167 e Kepler-167 Gas Giant 2016 10.16 321.01 1,115.2 0.276
HD 94771 b HD 94771 Gas Giant 2023 14.20 169.00 188.5 0.258
WD 1856+534 b WD 1856+534 Gas Giant 2020 10.40 4,386.05 80.7 0.258
EPIC 248847494 b EPIC 248847494 Gas Giant 2018 12.44 4,131.79 1,800.0 0.257
HD 74698 c HD 74698 Gas Giant 2023 14.00 126.00 169.8 0.243
WASP-132 d WASP-132 Gas Giant 2024 12.80 1,639.99 400.9 0.227
HD 164922 b HD 164922 Gas Giant 2005 13.30 116.00 71.8 0.222
TOI-969 c TOI-969 Gas Giant 2022 12.40 3,591.46 252.0 0.180
G 192-15 c G 192-15 Sub-Neptune 2025 3.87 14.30 31.1 0.134