This page showcases the known transiting brown dwarf systems discovered by the Kepler/K2 missions as of September 2023.

AD 3116b

Host star parameters

Mass: 0.28 ± 0.03 M_⊙
Radius: 0.29 ± 0.02 R_⊙
T_eff: 3165 ± 53 K
[Fe/H]: +0.17 ± 0.09
Age (cluster, Praesepe): 0.60 Gyr

Brown dwarf parameters

Mass: 54.6 ± 6.9 M_J
Radius: 0.95 ± 0.07 R_J
Period: 1.98279 days
Transit time: 2457815.294810 ± 0.000077 days
Eccentricity: 0.144
Inclination: 89.48 ± 0.47 degrees
Semi-major axis: 0.02140 ± 0.00071 AU
T_eq: 559 ± 10 K
Mass ratio (M_b/M_star): 0.188
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CWW 89Ab

Host star parameters

Mass: 1.10 ± 0.05 M_⊙
Radius: 1.03 ± 0.02 R_⊙
T_eff: 5755 ± 49 K
[Fe/H]: +0.20 ± 0.09
Age (cluster, Ruprecht 147): 2.5 Gyr

Brown dwarf parameters

Mass: 39.2 ± 1.1 M_J
Radius: 0.94 ± 0.02 R_J
Period: 5.2926 days
Transit time: 2457341.037107 ± 0.000089 days
Eccentricity: 0.1819
Inclination: 88.53 ± 0.27 degrees
Semi-major axis: 0.06206 ± 0.00084 AU
T_eq: 1130 ± 13 K
Mass ratio (M_b/M_star): 0.03399

EPIC 201702477b

Host star parameters

Mass: 0.90 ± 0.05 M_⊙
Radius: 1.04 ± 0.04 R_⊙
T_eff: 5602 ± 64 K
[Fe/H]: -0.19 ± 0.09
Age (MIST): 10.0 ± 3.4 Gyr

Brown dwarf parameters

Mass: 68.1 ± 2.7 M_J
Radius: 0.86 ± 0.05 R_J
Period: 40.7349 days
Transit time: 2456852.2793 ± 0.0015 days
Eccentricity: 0.2267
Inclination: 88.95 ± 0.05 degrees
Semi-major axis: 0.2285 ± 0.0044 AU
T_eq: 574 ± 10 K
Mass ratio (M_b/M_star): 0.0727
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EPIC 212036875b

Host star parameters

Mass: 1.29 ± 0.07 M_⊙
Radius: 1.50 ± 0.03 R_⊙
T_eff: 6238 ± 59 K
[Fe/H]: +0.01 ± 0.01
Age (MIST): 2.70 ± 0.95 Gyr

Brown dwarf parameters

Mass: 52.3 ± 1.9 M_J
Radius: 0.87 ± 0.02 R_J
Period: 5.169885 days
Transit time: 2458134.86852 ± 0.00014 days
Eccentricity: 0.1323
Inclination: 83.93 ± 0.16 degrees
Semi-major axis: 0.0645 ± 0.0011 AU
T_eq: 1450 ± 16 K
Mass ratio (M_b/M_star): 0.03876

Kepler-39b

Host star parameters

Mass: 1.20 ± 0.09 M_⊙
Radius: 1.26 ± 0.03 R_⊙
T_eff: 6290 ± 120 K
[Fe/H]: +0.07 ± 0.14
Age (MIST): 2.20 ± 2.20 Gyr

Brown dwarf parameters

Mass: 19.0 ± 1.3 M_J
Radius: 1.07 ± 0.03 R_J
Period: 21.08701 days
Transit time: 2455141.29441 ± 0.00036 days
Eccentricity: 0.066
Inclination: 89.59 ± 0.32 degrees
Semi-major axis: 0.1596 ± 0.0039 AU
T_eq: 853 ± 15 K
Mass ratio (M_b/M_star): 0.01518

Kepler-503b

Host star parameters

Mass: 1.15 ± 0.05 M_⊙
Radius: 1.76 ± 0.08 R_⊙
T_eff: 5670 ± 110 K
[Fe/H]: +0.17 ± 0.05
Age (MIST): 6.7 ± 1.0 Gyr

Brown dwarf parameters

Mass: 78.6 ± 3.1 M_J
Radius: 0.96 ± 0.06 R_J
Period: 7.25845 days
Transit time: 2454971.34494 ± 0.00026 days
Eccentricity: 0.025
Inclination: 88.04 ± 1.0 degrees
Semi-major axis: 0.0786 ± 0.0010 AU
T_eq: 1296 ± 23 K
Mass ratio (M_b/M_star): 0.0648
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KOI-189b

Host star parameters

Mass: 0.80 ± 0.04 M_⊙
Radius: 0.77 ± 0.01 R_⊙
T_eff: 4973 ± 84 K
[Fe/H]: +0.04 ± 0.14
Age (MIST): 6.4 ± 4.5 Gyr

Brown dwarf parameters

Mass: 80.4 ± 2.5 M_J
Radius: 0.99 ± 0.02 R_J
Period: 30.36049 days
Transit time: 2456256.23030 ± 0.0020 days
Eccentricity: 0.2740
Inclination: 89.62 ± 0.05 degrees
Semi-major axis: 0.1824 ± 0.0027 AU
T_eq: 492 ± 10 K
Mass ratio (M_b/M_star): 0.0958
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KOI-205b

Host star parameters

Mass: 0.90 ± 0.05 M_⊙
Radius: 0.86 ± 0.02 R_⊙
T_eff: 5289 ± 86 K
[Fe/H]: +0.17 ± 0.13
Age (MIST): 5.3 ± 4.8 Gyr

Brown dwarf parameters

Mass: 40.2 ± 1.8 M_J
Radius: 0.81 ± 0.02 R_J
Period: 11.72020 days
Transit time: 2455139.25600 ± 0.00022 days
Eccentricity: 0.0
Inclination: 88.40 ± 0.09 degrees
Semi-major axis: 0.099 ± 0.002 AU
T_eq: 754 ± 12 K
Mass ratio (M_b/M_star): 0.0426
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LHS 6343c

Host star parameters

Mass: 0.37 ± 0.01 M_⊙
Radius: 0.38 ± 0.01 R_⊙
T_eff: 3750 ± 125 K
[Fe/H]: +0.04 ± 0.08
Age: -

Brown dwarf parameters

Mass: 62.9 ± 2.3 M_J
Radius: 0.83 ± 0.02 R_J
Period: 12.71382 days
Transit time: 2454957.216636 ± 0.000073 days
Eccentricity: 0.056
Inclination: 89.5 ± 0.1 degrees
Semi-major axis: 0.07963 ± 0.00105 AU
T_eq: -
Mass ratio (M_b/M_star): 0.16228

KOI-415b

Host star parameters

Mass: 0.98 ± 0.08 M_⊙
Radius: 1.32 ± 0.03 R_⊙
T_eff: 5840 ± 80 K
[Fe/H]: -0.18 ± 0.11
Age (MIST): 9.0 ± 2.9 Gyr

Brown dwarf parameters

Mass: 66.9 ± 3.6 M_J
Radius: 0.82 ± 0.02 R_J
Period: 166.78782 days
Transit time: 2455912.08340 ± 0.00092 days
Eccentricity: 0.7010
Inclination: 89.21 ± 0.14 degrees
Semi-major axis: 0.602 ± 0.016 AU
T_eq: 418 ± 10 K
Mass ratio (M_b/M_star): 0.0651

RIK 72b

Host star parameters

Mass: 0.44 ± 0.04 M_⊙
Radius: 0.96 ± 0.10 R_⊙
T_eff: 3349 ± 142 K
[Fe/H]: -
Age (association, Upper Sco): 0.01 Gyr

Brown dwarf parameters

Mass: 59.2 ± 6.8 M_J
Radius: 3.10 ± 0.31 R_J
Period: 97.76 days
Transit time: 2456911.51207 ± 0.00036 days
Eccentricity: 0.1079
Inclination: 89.47 ± 0.028 degrees
Semi-major axis: 0.349 ± 0.020 AU
T_eff: 2722 ± 98 K
Mass ratio (M_b/M_star): 0.1284