IPAC Logo
NASA
Exoplanet
Archive
A
service of
NASA
Exoplanet
Science
Institute

WASP-138 Overview

WASP-138 1.46 R⦿ 6139.67 K
WASP-138 b
1.090 RJup

WASP-138 Architecture & Discovery Information

Name Orbital Separation Planet Size Method Year Reference Disposition
WASP-138
WASP-138 b 3.63 d 12.22 R⨁ Transit 2016 Lam et al. 2017 Confirmed Planet
WASP-138
  • Stellar mass, radius, effective temperature, and surface gravity drawn from Table 6 in ref. (Lam et al. 2017)
RA
02h46m33.40s
Dec
-00d27m50.85s
Distance
414.234+7.647-7.379
pc
Parallax
2.3857100±0.0434476 mas
Ecliptic Latitude
-15.76671 deg
Ecliptic Longitude
39.05163 deg
Galactic Latitude
-51.60268 deg
Galactic Longitude
173.7466 deg
Total Proper Motion
36.2524706±0.0676453 mas/yr
Proper Motion (RA)
11.2470000±0.0699776 mas/yr
Proper Motion (Dec)
-34.4637000±0.0673921 mas/yr
Photometry
mV
11.796±0.057
mTESS
11.3161±0.0082
mJ
10.782±0.024
mH
10.540±0.025
mKs
10.494±0.019
mW1
10.464±0.023
mW2
10.486±0.021
mW3
10.571±0.110
mW4
8.717
mGaia
11.687300±0.000499
mB
12.321±0.054
Tools
Planetary Systems
ExoFOP Target Overview Page
IRSA Finding Chart
TOI
Stellar Hosts
Source TICv8 Gaia DR2 Lam et al. 2017 ExoFOP
Teff
(K)
6336.0000+168.2920-96.6876
6139.6665+371.8980-221.1670
 6272±96 6272
L✶
(log10(L⦿))
0.4674986+0.0275565-0.0189051
0.43502917+0.01114621-0.01143985
 --- ---
R✶
(R⦿)
1.4215800+0.0852402-0.0528101
1.4584035+0.1110340-0.1618320
 1.36±0.05 1.42±0.07
Metallicity
(dex)
--- --- -0.090±0.100 [Fe/H] ---
v sin i
(km/s)
--- --- 7.7±1.1 ---
Age
(Gyr)
--- --- 3.44±0.93 ---
ρ✶
(g/cm3)
0.6134239+0.1364815-0.1515380
 --- 0.687±0.062 ---
M✶
(M⦿)
1.250000+0.218050-0.156679
 --- 1.22±0.05 ---
log g
(log10(cm/s2))
4.2294300+0.0830551-0.0913617
 --- 4.25±0.02 4.25771
Print
Status
Confirmed Planet
Detected By
Radial Velocity, Transit
Tools
Planetary Systems
Transit Prediction Service
TOI
Transit
Source Lam et al. 2017 Kokori et al. 2023 Patel & Espinoza 2022 Ivshina & Winn 2022 ExoFOP
a/R✶
--- 7.39±0.15
7.40+0.15-0.27
 --- ---
i
(deg)
88.5+0.9-1.2
88.5+0.9-1.2
 --- --- ---
P
(days)
3.634433±0.000005 3.6344327±0.0000015
3.6344412+0.0000024-0.0000023
 3.6344365±0.0000025 3.6344447±0.0000042
Rp/R✶
--- 0.0826±0.0008 0.0886±0.0008 --- ---
TC
(days)
2457326.621830±0.000319
(BJD)
2458257.03694±0.00036
(BJD-TDB)
2459169.28001+0.00032-0.00034
(BJD)
2458413.31678±0.00046
(BJD-TDB)
2459169.2792480±0.0005966
(BJD)
Teq
(K)
1590±31 --- --- --- 1616
S
(S⨁)
--- --- --- --- 1133.73
Rp
(R⨁)
12.2±0.6 --- --- --- 14.250000±0.706771
Rp
(RJup)
1.09±0.05 --- --- --- 1.2713020±0.0630540
δ
(%)
0.683±0.013 --- --- --- 0.9230000000±0.0000849809
T14
(hours)
3.773±0.029 --- --- --- 3.871±0.143
b
0.19+0.12-0.15
 ---
0.220+0.130-0.140
 --- ---
Mp
(M⨁)
388±25 --- --- --- ---
Mp
(MJup)
1.22±0.08 --- --- --- ---
ρ
(g/cm3)
1.200+0.130-0.194
 --- --- --- ---
a
(au)
0.0494±0.0007 --- --- --- ---
Print
Known Objects
1 Confirmed Planets
1 2MASS Point Source Catalog
Data Files
1 Associated Literature Data
  • System
  • Star
  • Confirmed
  • Candidate
  • False Positive Planet
  • Controversial
  • False Positive
  • Aliases
  • Data Access
  • Transit Prediction Service
  • Time Series
  • Kepler | K2
  • External Link
  • Search
  • Browse
  • Download
NExScI Logo IPAC Logo Caltech Logo JPL Logo NASA Logo

NASA Exoplanet Archive is operated by the California Institute of Technology, under contract with the National Aeronautics and Space Administration under the Exoplanet Exploration Program.