K2-157 Overview

K2-157 0.86 R⦿ 5334.00 K
K2-157 b
0.083 RJup
K2-157 c
K2-157 d
Architecture
K2-157
K2-157
K2-157 b
K2-157 c
K2-157 d
Other Data
Bibliography 8
Nearby Data 5
Discovery Data
Host Planet Method Year Reference Disposition
K2-157 K2-157 b Transit 2018 Mayo et al. 2018 Confirmed Planet
K2-157 K2-157 c Radial Velocity 2025 Castro-González et al. 2025 Confirmed Planet
K2-157 K2-157 d Radial Velocity 2025 Castro-González et al. 2025 Confirmed Planet
RA
12h15m00.36s
Dec
-05d46m55.26s
Distance
298.373+4.590-4.455
pc
Parallax
3.3235700±0.0504068 mas
Ecliptic Latitude
-3.81511 deg
Ecliptic Longitude
185.73645 deg
Galactic Latitude
55.93047 deg
Galactic Longitude
286.60409 deg
Total Proper Motion
37.5106484±0.1032317 mas/yr
Proper Motion (RA)
36.722200±0.104773 mas/yr
Proper Motion (Dec)
-7.6504100±0.0571847 mas/yr
Photometry
mV
12.942±0.069
mTESS
12.1305±0.0064
mJ
11.398±0.022
mH
11.023±0.022
mKs
10.980±0.023
mKep
12.604
mW1
10.919±0.023
mW2
10.962±0.022
mW3
11.105±0.137
mW4
9.057
mGaia
12.641900±0.000177
mB
13.609±0.013
Source Castro-González et al. 2025 Adams et al. 2021 TICv8 Gaia DR2 Mayo et al. 2018
Teff
(K)
5334±64 5456±50
5377.000+127.453-120.171
5337.000+147.200-159.017
5456.0±50.0
Metallicity
(dex)
0.02±0.04 [Fe/H] 0.13±0.08 [Fe/H] --- --- 0.13±0.08 [Fe/H]
γ
(km/s)
43.44811+0.00064-0.00066
--- --- 43.89861504848445±1.20077460382114 ---
v sin i
(km/s)
<3 --- --- --- ---
Age
(Gyr)
8.80±4.00 --- --- --- ---
M
(M⦿)
0.890±0.029 ---
0.9300000+0.1217200-0.1008120
---
0.939509 +0.023094-0.026774
R
(R⦿)
0.860±0.019 0.88±0.04
0.9208260+0.0427839-0.0585226
0.91824186+0.05726470-0.04863120
0.875749 +0.045176-0.025384
CAII LOG RHK
-5.077±0.049 --- --- --- ---
log g
(log10(cm/s2))
4.45±0.04 4.5±0.1
4.4782000+0.0922341-0.0685236
--- 4.55±0.1
Sp. T
G9 V --- --- --- ---
L
(log10(L⦿))
--- ---
-0.1947899+0.0172158-0.0167698
-0.2102023+0.0090248-0.0092163
---
ρ
(g/cm3)
--- ---
1.6792582+0.4070535-0.3635575
--- ---
Status
Confirmed Planet
Detected By
Radial Velocity, Transit
Source Castro-González et al. 2025 Adams et al. 2021 Mayo et al. 2018
a/R
2.405±0.059 2.2±0.4
1.876041 +0.317378-0.379152
i
(deg)
89.2+9.3-9.1
89.70±20.00
76.710646 +9.693245-18.254981
P
(days)
0.3652575+0.0000078-0.0000088
0.365261±0.000170 0.365257±0.000029
Rp
(R)
0.9350±0.0900
1.00+0.10-0.08
1.05548087755 +0.147183227329-0.097907390109
Rp
(RJup)
0.0834±0.0081
0.0892+0.0089-0.0071
0.0941636968 +0.0131308080-0.0087347123
Rp/R
0.00996±0.00094
0.01070+0.00110-0.00063
0.011049 +0.001432-0.000974
TC
(days)
2457582.8220+0.0041-0.0032
2457638.7224+0.0021-0.0019
2457582.82389 +0.003237-0.003292
Teq
(K)
2432±42 --- ---
b
0.030±0.380 --- ---
S
(S)
6660±200 --- ---
Mp
(M)
1.14+0.41-0.42
--- ---
Mp
(MJup)
0.0036±0.0013 --- ---
ρ
(g/cm3)
7.70±3.60 --- ---
K
(m/s)
1.10+0.39-0.41
--- ---
a
(au)
0.00962±0.00010 --- ---
δ
(%)
0.00990±0.00190 --- ---
T14
(hours)
1.161±0.032 --- ---
Status
Confirmed Planet
Detected By
Radial Velocity
Source Castro-González et al. 2025
a/R
41.2±1.0
Teq
(K)
587±10
S
(S)
22.65±0.68
Mp sin i
(M)
30.8±1.9
Mp sin i
(MJup)
0.09670±0.00600
e
<0.2
P
(days)
25.942+0.045-0.044
K
(m/s)
7.17±0.42
a
(au)
0.1650±0.0018
TC
(days)
2458557.02±0.30
Status
Confirmed Planet
Detected By
Radial Velocity
Source Castro-González et al. 2025
a/R
77.3±2.0
Teq
(K)
429.1±7.5
S
(S)
6.46±0.21
Mp sin i
(M)
23.3±2.5
Mp sin i
(MJup)
0.0732±0.0077
e
<0.5
P
(days)
66.50+0.71-0.59
K
(m/s)
3.96+0.42-0.41
a
(au)
0.3090±0.0038
TC
(days)
2458589.3+1.7-2.0
Known Objects
3 Confirmed Planets
1 K2 Targets
2 2MASS Point Source Catalog
Data Files
1 K2 Time Series
3 Associated Literature Data
System
Star
Confirmed
Candidate
False Positive Planet
Controversial
False Positive
Aliases
Data Access
Transit Prediction Service
Time Series
Kepler | K2
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