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K2-381 Overview

K2-381 0.68 R⦿ 4575.00 K
K2-381 b
0.096 RJup
K2-381 c
0.178 RJup
K2-381 d
0.151 RJup

K2-381 Architecture & Discovery Information

Name Orbital Separation Planet Size Method Year Reference Disposition
K2-381
K2-381 b 7.94 d 1.08 R⨁ Transit 2022 Christiansen et al. 2022 Confirmed Planet
K2-381 c 16.03 d 2 R⨁ Transit 2022 Christiansen et al. 2022 Confirmed Planet
K2-381 d 26.8 d 1.69 R⨁ Transit 2022 Christiansen et al. 2022 Confirmed Planet
K2-381 b K2-381 c K2-381 d
RA
19h12m06.42s
Dec
-21d00m27.28s
Distance
145.701+1.082-1.067
pc
Parallax
6.8350800±0.0502397 mas
Ecliptic Latitude
1.38671 deg
Ecliptic Longitude
286.79284 deg
Galactic Latitude
-13.78589 deg
Galactic Longitude
16.13135 deg
Total Proper Motion
37.6436184±0.0972033 mas/yr
Proper Motion (RA)
-34.8004000±0.0998572 mas/yr
Proper Motion (Dec)
14.3518000±0.0798344 mas/yr
Photometry
mV
12.883±0.069
mTESS
11.9607±0.0061
mJ
10.970±0.021
mH
10.390±0.025
mKs
10.302±0.021
mKep
12.601
mW1
10.241±0.024
mW2
10.273±0.022
mW3
10.106±0.113
mW4
7.741
mGaia
12.637300±0.000252
mB
14.063±0.006
Mission
K2 : Observed in Campaign 7
Tools
Planetary Systems
ExoFOP Target Overview Page
IRSA Finding Chart
K2 Names
K2 Planets and Candidates
K2 Targets
Stellar Hosts
K2 Time Series
Source Christiansen et al. 2022 TICv8 Kruse et al. 2019 Kruse et al. 2019 Zink et al. 2019 Mayo et al. 2018 Mayo et al. 2018 Petigura et al. 2018
Teff
(K)
4473±138
4575.000+112.385-137.318
 --- --- 4710 4661.0±50.0 4661.0±50.0 ---
L✶
(log10(L⦿))
---
-0.7392255+0.0240294-0.0271234
 --- --- --- --- --- ---
ρ✶
(g/cm3)
---
3.2428684+0.9320376-0.8997906
 --- --- --- --- --- ---
M✶
(M⦿)
0.7540+0.3370-0.2390
0.7220000+0.0927382-0.0730143
 --- --- --- --- --- ---
R✶
(R⦿)
0.675+0.052-0.047
0.6796070+0.0538161-0.0453799
0.616 +0.049-0.038
0.616 +0.049-0.038
0.62 +0.02-0.03
0.645652 +0.021194-0.018782
0.645652 +0.021194-0.018782
0.70
log g
(log10(cm/s2))
4.653±0.150
4.6320900+0.0936813-0.0937066
 --- --- --- 4.66±0.1 4.66±0.1 ---
Metallicity
(dex)
-0.244±0.235 [Fe/H] --- --- --- --- -0.33±0.08 [Fe/H] -0.33±0.08 [Fe/H] ---
Print
Status
Confirmed Planet
Detected By
Transit
Tools
Planetary Systems
Transit Prediction Service
K2 Names
K2 Planets and Candidates
Transit
Source Christiansen et al. 2022 Kruse et al. 2019 Mayo et al. 2018
a/R✶
31.05+4.25-7.49
34.7 +15.7-9.3
28.901352 +7.771243-20.174980
b
0.505+0.311-0.301
 --- ---
P
(days)
7.9389334+0.0005960-0.0005920
 7.9388±0.0011
7.939256 +0.000797-0.000800
Rp
(R⨁)
1.075+0.142-0.104
0.94 +0.13-0.24
1.08322370712 +0.936605806583-0.128349501476
Rp
(RJup)
0.09591+0.01267-0.00928
0.084 +0.012-0.021
0.10 +0.08-0.01
Rp/R✶
0.0146+0.0010-0.0020
0.0139 +0.0016-0.0035
0.015381 +0.013290-0.001767
TC
(days)
2457304.8440+0.0033-0.0063
(JD)
2457304.8454 +0.0048-0.0044
(BJD)
2457304.84484 +0.004080-0.004180
(BJD)
δ
(%)
---
0.0209 +0.0028-0.0029
---
T14
(hours)
---
1.46400+0.21600-0.28800
 ---
i
(deg)
--- ---
88.862504 +0.849684-5.438259
Print
Status
Confirmed Planet
Detected By
Transit
Tools
Planetary Systems
Transit Prediction Service
K2 Names
K2 Planets and Candidates
Transit
Source Christiansen et al. 2022 Kruse et al. 2019 Zink et al. 2019 Mayo et al. 2018 Petigura et al. 2018
b
0.338+0.249-0.221
 ---
0.742 +0.074-0.1
--- 0.48±0.32
P
(days)
16.034656+0.001844-0.001572
16.03430 +0.00070-0.00071
16.0382 +0.0018-0.0026
16.035054 +0.000798-0.000814
16.038474 +0.002975-0.003057
Rp
(R⨁)
2.000+0.184-0.148
2.05 +0.33-0.48
---
2.05816745399 +0.572715408429-0.254672588066
2.0 +0.4-0.3
Rp
(RJup)
0.1784+0.0164-0.0132
0.183 +0.029-0.043
 ---
0.18 +0.05-0.02
0.18 +0.04-0.03
Rp/R✶
0.0271±0.0010
0.0306 +0.0042-0.0069
0.0283 +0.0017-0.0016
0.029225 +0.008075-0.003515
0.0260 +0.0031-0.0015
T14
(hours)
---
3.14400+0.16800-0.26400
 --- ---
3.06960+0.22080-0.19920
TC
(days)
2457304.2916+0.0030-0.0027
(JD)
2457304.2922±0.0016
(BJD)
2457320.3248 +0.0027-0.0031
(BJD)
2457304.29122 +0.001787-0.001755
(BJD)
2457320.325 +0.005179-0.004901
(BJD)
a/R✶
39.39+2.21-5.33
31.0 +13.4-9.0
27.2 +3.5-3.4
31.039056 +8.757370-15.844157
---
δ
(%)
---
0.0947 +0.0028-0.0029
--- --- ---
i
(deg)
--- --- ---
88.798166 +0.924411-2.346677
---
Print
Status
Confirmed Planet
Detected By
Transit
Tools
Planetary Systems
Transit Prediction Service
K2 Names
K2 Planets and Candidates
Transit
Source Christiansen et al. 2022 Kruse et al. 2019 Mayo et al. 2018
a/R✶
59.43+7.25-11.72
63.2 +20.0-8.9
55.979016 +9.062385-18.275709
b
0.497+0.225-0.286
 --- ---
P
(days)
26.803023+0.002775-0.003048
 26.8054±0.0017
26.804998 +0.002441-0.002403
Rp
(R⨁)
1.689+0.180-0.139
1.48 +0.15-0.19
1.53157980985 +0.278784005366-0.128345773832
Rp
(RJup)
0.1507+0.0161-0.0124
0.132 +0.013-0.017
0.14 +0.02-0.01
Rp/R✶
0.0229+0.0020-0.0010
0.0221 +0.0014-0.0025
0.021748 +0.003894-0.001709
TC
(days)
2457307.9152+0.0038-0.0043
(JD)
2457307.9132±0.0022
(BJD)
2457307.91225 +0.003108-0.003090
(BJD)
δ
(%)
--- 0.0522±0.0026 ---
T14
(hours)
---
2.92800+0.14400-0.16800
 ---
i
(deg)
--- ---
89.477967 +0.379188-0.731014
Print
Known Objects
3 Confirmed Planets
1 K2 Targets
8 2MASS Point Source Catalog
Data Files
1 SuperWASP Time Series
1 K2 Time Series
3 Associated Literature Data
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  • False Positive Planet
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