Roque de los Muchachos Observatory: 39 Exoplanets Confirmed…

39 confirmed exoplanets have been identified for the Roque de los Muchachos Observatory facility. First confirmed in 2011; most recent in 2025.

Median radius

3.97 R⊕

Median mass

15.37 M⊕

Median distance

99.87 ly

Median ESI

0.42

Discovery Timeline

120112201442015520163201742018120193202012021820233202442025

Composition Breakdown

Sub-Neptune

14

35.9%

Gas Giant

13

33.3%

Neptune-like

6

15.4%

Super-Earth

5

12.8%

Rocky Terrestrial

1

2.6%

Host Spectral Class Mix

G-type yellow (Sun-like)

16

K-type orange

12

M-type red dwarf

10

F-type yellow-white

1

Most Earth-like in this Cohort

ESI 0.920

GJ 3998 b

Super-Earth · 1.39 R⊕ · 59.2 ly

ESI 0.818

HD 164922 d

Super-Earth · 1.83 R⊕ · 71.8 ly

ESI 0.704

GJ 3998 c

Sub-Neptune · 2.50 R⊕ · 59.2 ly

ESI 0.646

GJ 685 b

Sub-Neptune · 2.95 R⊕ · 46.7 ly

ESI 0.631

Gl 686 b

Sub-Neptune · 2.46 R⊕ · 26.6 ly

ESI 0.602

HD 48948 d

Sub-Neptune · 3.24 R⊕ · 55.1 ly

Cohort Extremes

Closest to Earth

GJ 15 A c

11.6 ly

Largest radius

BD+15 2375 b

13.80 R⊕

Most massive

TYC 4282-00605-1 b

3,426.2 M⊕

Hottest equilibrium

TOI-2141 c

1,095 K

Full Catalogue

Planet Host Type Year Radius (R⊕) Mass (M⊕) Distance (ly) ESI
GJ 3998 b GJ 3998 Super-Earth 2016 1.39 2.50 59.2 0.920
HD 164922 d HD 164922 Super-Earth 2020 1.83 4.00 71.8 0.818
GJ 3998 c GJ 3998 Sub-Neptune 2016 2.50 6.82 59.2 0.704
GJ 685 b GJ 685 Sub-Neptune 2019 2.95 9.00 46.7 0.646
Gl 686 b Gl 686 Sub-Neptune 2018 2.46 6.62 26.6 0.631
HD 48948 d HD 48948 Sub-Neptune 2024 3.24 10.59 55.1 0.602
GJ 9404 b GJ 9404 Sub-Neptune 2023 3.48 11.90 77.9 0.589
HD 219134 d HD 219134 Super-Earth 2015 1.61 16.17 21.3 0.560
BD-11 4672 c BD-11 4672 Neptune-like 2020 4.04 15.37 88.6 0.541
Kepler-10 d Kepler-10 Sub-Neptune 2023 3.49 12.00 605.0 0.539
HD 99492 c HD 99492 Neptune-like 2023 4.42 17.90 59.4 0.513
GJ 720 A b GJ 720 A Sub-Neptune 2021 3.77 13.64 50.7 0.506
GJ 9689 b GJ 9689 Sub-Neptune 2020 3.07 9.65 99.9 0.499
GJ 328 c GJ 328 Neptune-like 2023 4.91 21.40 66.9 0.482
Kepler-19 d Kepler-19 Neptune-like 2017 5.06 22.50 712.9 0.473
HD 48948 c HD 48948 Sub-Neptune 2024 2.60 7.27 55.1 0.446
HD 5583 b HD 5583 Gas Giant 2016 12.80 1,837.06 715.0 0.437
K2-312 c HD 80653 Gas Giant 2023 12.80 1,719.45 358.3 0.434
TOI-1422 c TOI-1422 Sub-Neptune 2025 2.61 14.00 506.0 0.425
GJ 3942 b GJ 3942 Sub-Neptune 2017 2.57 7.14 55.2 0.422
Pr0211 c Pr0211 Gas Giant 2016 12.60 2,475.90 595.9 0.417
TOI-2141 d TOI-2141 Sub-Neptune 2025 3.97 14.90 253.4 0.417
GJ 15 A c GJ 15 A Neptune-like 2018 6.67 36.00 11.6 0.398
Kepler-454 d Kepler-454 Gas Giant 2023 13.30 734.18 753.0 0.377
HD 219134 c HD 219134 Super-Earth 2015 1.51 4.36 21.3 0.375
TYC 4282-00605-1 b TYC 4282-00605-1 Gas Giant 2017 12.40 3,426.21 1,513.8 0.372
HD 233832 b HD 233832 Gas Giant 2018 13.50 565.74 191.6 0.355
HD 132563 b HD 132563 Gas Giant 2011 13.60 473.55 343.0 0.340
XO-2 S c XO-2 S Gas Giant 2014 13.60 435.41 493.8 0.335
TOI-4010 e TOI-4010 Gas Giant 2023 13.30 692.00 578.9 0.322
HD 220197 b HD 220197 Neptune-like 2018 9.32 63.57 210.1 0.320
BD+15 2375 b BD+15 2375 Gas Giant 2016 13.80 337.22 2,505.0 0.312
XO-2 S b XO-2 S Gas Giant 2014 10.90 82.64 493.8 0.289
HD 219134 b HD 219134 Super-Earth 2015 1.60 4.74 21.3 0.287
Kepler-68 e Kepler-68 Gas Giant 2023 11.20 86.45 470.2 0.283
HD 48948 b HD 48948 Sub-Neptune 2024 2.06 4.88 55.1 0.282
HD 219134 h HD 219134 Gas Giant 2015 12.70 108.06 21.3 0.261
HD 224018 b HD 224018 Rocky Terrestrial 2025 0.91 4.10 344.0 0.255
TOI-2141 c TOI-2141 Sub-Neptune 2025 2.35 6.14 253.4 0.232