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K2-238 Overview

K2-238 1.59 R⦿ 5342.00 K
K2-238 b
1.300 RJup

K2-238 Architecture & Discovery Information

Name Orbital Separation Planet Size Method Year Reference Disposition
K2-238
K2-238 b 3.2 d 14.57 R⨁ Transit 2018 Soto et al. 2018 Confirmed Planet
RA
23h10m49.04s
Dec
-07d51m27.21s
Distance
537.963 pc
Parallax
0.14750437221223875±0.19975205835035009 mas
Ecliptic Latitude
-2.37937 deg
Ecliptic Longitude
345.62843 deg
Galactic Latitude
-59.35657 deg
Galactic Longitude
67.22735 deg
Total Proper Motion
20.9±1.5 mas/yr
Proper Motion (RA)
-20.3±1.5 mas/yr
Proper Motion (Dec)
-4.9±1.7 mas/yr
Photometry
mV
13.973±0.126
mTESS
13.1749±0.0064
mJ
12.464±0.032
mH
12.095±0.038
mKs
12.032±0.033
mKep
13.552
mW1
11.854±0.023
mW2
11.927±0.023
mW3
11.771±0.273
mW4
8.964
mGaia
13.663500±0.002247
mB
14.544±0.058
Mission
K2 : Observed in Campaign 12
Tools
Planetary Systems
ExoFOP Target Overview Page
IRSA Finding Chart
TOI
K2 Names
K2 Planets and Candidates
K2 Targets
Stellar Hosts
K2 Time Series
Source Gaia DR2 Soto et al. 2018 ExoFOP
Teff
(K)
5342.00+318.00-643.32
 5630±78 5342.0±452.3
Metallicity
(dex)
--- 0.34±0.04 [Fe/H] ---
v sin i
(km/s)
--- 3.78±0.57 ---
Age
(Gyr)
---
5.63+1.05-1.97
 ---
ρ✶
(g/cm3)
---
0.0775+0.0004-0.0003
 ---
M✶
(M⦿)
--- 1.19±0.08 ---
R✶
(R⦿)
--- 1.59±0.16 ---
log g
(log10(cm/s2))
--- 4.11±0.07 ---
Sp. T
--- G2 V ---
Print
Status
Confirmed Planet
Detected By
Radial Velocity, Transit
Tools
Planetary Systems
Transit Prediction Service
TOI
K2 Names
K2 Planets and Candidates
Transit
Source Soto et al. 2018 Kokori et al. 2023 ExoFOP
P
(days)
3.20466±0.00003 3.2046909±0.0000022 3.2047072±0.0000023
δ
(%)
--- --- 0.7448000±0.0202614
T14
(hours)
--- --- 3.331±0.288
TC
(days)
2457740.5036±0.0004
(JD)
2457984.06074±0.00023
(BJD-TDB)
2460227.3570320±0.0017497
(BJD)
a/R✶
6.27+0.66-0.52
6.3+0.7-0.5
 ---
i
(deg)
84.5+1.8-1.5
84.5+1.8-1.5
 ---
Rp/R✶
0.080+0.003-0.002
 0.080±0.003 ---
Teq
(K)
1587+75-76
 --- ---
ω
(deg)
90 --- ---
Mp
(M⨁)
273+41-38
 --- ---
Mp
(MJup)
0.86+0.13-0.12
 --- ---
e
0 --- ---
ρ
(g/cm3)
0.56+0.25-0.16
 --- ---
Rp
(R⨁)
14.6+1.7-1.6
 --- ---
Rp
(RJup)
1.30+0.15-0.14
 --- ---
K
(m/s)
100±10 --- ---
a
(au)
0.046+0.007-0.006
 --- ---
Print
Known Objects
1 Confirmed Planets
1 K2 Targets
1 2MASS Point Source Catalog
Data Files
1 K2 Time Series
1 Associated Literature Data
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  • Candidate
  • False Positive Planet
  • Controversial
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  • Aliases
  • Data Access
  • Transit Prediction Service
  • Time Series
  • Kepler | K2
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