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K2-388 Overview

K2-388 0.90 R⦿ 5367.00 K
K2-388 b
0.348 RJup

K2-388 Architecture & Discovery Information

Name Orbital Separation Planet Size Method Year Reference Disposition
K2-388
K2-388 b 6.34 d 3.9 R⨁ Transit 2022 Christiansen et al. 2022 Confirmed Planet
RA
23h30m51.34s
Dec
-11d04m38.48s
Distance
290.495+4.305-4.184
pc
Parallax
3.4143900±0.0499091 mas
Ecliptic Latitude
-7.28311 deg
Ecliptic Longitude
348.91684 deg
Galactic Latitude
-65.17333 deg
Galactic Longitude
69.3239 deg
Total Proper Motion
23.2335777±0.0622060 mas/yr
Proper Motion (RA)
0.3902500±0.0855867 mas/yr
Proper Motion (Dec)
-23.2303000±0.0621982 mas/yr
Photometry
mV
12.861±0.114
mTESS
12.1093±0.0066
mJ
11.401±0.029
mH
10.991±0.021
mKs
10.931±0.021
mKep
12.614
mW1
10.881±0.023
mW2
10.947±0.021
mW3
10.878±0.125
mW4
8.859
mGaia
12.63570±0.00034
mB
13.670±0.038
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 Howard et al. 2025 Christiansen et al. 2022 TICv8 Zink et al. 2021 ExoFOP
Teff
(K)
5310.0±100.0 5367±138
5289.0000+151.1630-90.5922
 5367.0±138.0 5289.0±120.9
Metallicity
(dex)
0.240±0.045 [Fe/H] 0.124±0.235 [Fe/H] --- 0.124±0.235 [Fe/H] ---
M✶
(M⦿)
0.93±0.04
0.8420+0.3760-0.2590
0.9100000+0.1107430-0.1184050
0.8420+0.3760-0.2590
 ---
R✶
(R⦿)
0.910±0.038
0.897+0.058-0.053
0.9334030+0.0647347-0.0404412
0.8970+0.0580-0.0530
 0.93±0.05
log g
(log10(cm/s2))
4.420±0.081 4.456±0.150
4.4569700+0.0963368-0.0666155
 4.4560±0.1500 4.46±0.08
Sp. T
--- --- --- G8 ---
L✶
(log10(L⦿))
--- ---
-0.2116727+0.0136739-0.0192198
 --- ---
ρ✶
(g/cm3)
--- ---
1.577610+0.463781-0.260206
 --- ---
v sin i
(km/s)
1.9±1.0 --- --- --- ---
S Index
0.1538 --- --- --- ---
CAII LOG RHK
-5.073 --- --- --- ---
Print
Status
Confirmed Planet
Detected By
Transit
Tools
Planetary Systems
Transit Prediction Service
TOI
K2 Names
K2 Planets and Candidates
Transit
Source Howard et al. 2025 Christiansen et al. 2022 Zink et al. 2021 ExoFOP
Teq
(K)
874.0+26.0-25.0
 --- --- 922
S
(S⨁)
138.0+17.0-15.0
 --- --- 120.002
P
(days)
6.33932±0.00013
6.339069+0.000225-0.000186
6.339069+0.000225-0.000186
 6.3392677±0.0002037
Rp
(R⨁)
3.9+0.2-0.1
3.660+0.330-0.229
3.660+0.330-0.229
 3.919680±0.252457
Rp
(RJup)
0.35+0.02-0.01
0.3265+0.0294-0.0204
0.3265+0.0294-0.0204
 0.3496910±0.0225227
TC
(days)
2457741.79456±0.00088
(BJD)
2457741.7944+0.0017-0.0019
(JD)
2457741.794408+0.001686-0.001858
(BJD)
2460226.7873280±0.0777312
(BJD)
a/R✶
---
14.71+1.04-3.11
14.71+1.04-3.11
 ---
b
---
0.388+0.301-0.248
0.388+0.301-0.248
 ---
Rp/R✶
---
0.0374+0.0020-0.0010
0.0374+0.0020-0.0010
 ---
T14
(hours)
--- --- 3.2 3.020±0.177
δ
(%)
--- --- --- 0.17390000±0.00909737
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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