K2-381 Overview
-
Star:
K2-381
- Stellar Radius: 0.68 Solar Radius
- Stellar Effective Temperature: 4575.00 K
-
Planet:
K2-381 b
- Disposition Confirmed
- Planet Radius 0.096 Jupiter Radius
-
Planet:
K2-381 c
- Disposition Confirmed
- Planet Radius 0.178 Jupiter Radius
-
Planet:
K2-381 d
- Disposition Confirmed
- Planet Radius 0.151 Jupiter Radius
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
- Candidate identifier changed to match previous publication. (Mayo et al. 2018)
- Candidate identifier changed to match previous publication. (Kruse et al. 2019)
- Candidate identifier changed to match previous publication. (Kruse et al. 2019)
- Candidate identifier changed to match previous publication. (Mayo et al. 2018)
- Candidate identifier changed to match previous publication. (Kruse et al. 2019)
- RA
- 19h12m06.42s
- Dec
- -21d00m27.28s
- Distance
-
145.701+1.082-1.067pc
- 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
-
Abundances
(Hypatia Catalog) - [Fe/H] -0.36±0.04 dex
- [Mg/H] -0.24±0.07 dex
- Mission
- K2: Observed in Campaign 7
| 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] | --- |
- Status
- Confirmed Planet
- Detected By
- 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
|
||
|
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
|
||
|
δ
(%)
|
--- |
0.0209 +0.0028-0.0029
|
--- | ||
|
T14
(hours)
|
--- |
1.46400+0.21600-0.28800
|
--- | ||
|
TC
(days)
|
2457304.8440+0.0033-0.0063
(JD)
|
2457304.8454 +0.0048-0.0044
(BJD)
|
2457304.84484 +0.004080-0.004180
(BJD)
|
||
|
b
|
0.505+0.311-0.301
|
--- | --- | ||
|
i
(deg)
|
--- | --- |
88.862504 +0.849684-5.438259
|
- Status
- Confirmed Planet
- Detected By
- Transit
| Source | Christiansen et al. 2022 | Kruse et al. 2019 | Zink et al. 2019 | Mayo et al. 2018 | Petigura et al. 2018 | ||
|---|---|---|---|---|---|---|---|
|
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
|
--- | ||
|
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
|
||
|
δ
(%)
|
--- |
0.0947 +0.0028-0.0029
|
--- | --- | --- | ||
|
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)
|
||
|
b
|
0.338+0.249-0.221
|
--- |
0.742 +0.074-0.1
|
--- | 0.48±0.32 | ||
|
i
(deg)
|
--- | --- | --- |
88.798166 +0.924411-2.346677
|
--- |
- Status
- Confirmed Planet
- Detected By
- 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
|
||
|
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
|
||
|
δ
(%)
|
--- | 0.0522±0.0026 | --- | ||
|
T14
(hours)
|
--- |
2.92800+0.14400-0.16800
|
--- | ||
|
TC
(days)
|
2457307.9152+0.0038-0.0043
(JD)
|
2457307.9132±0.0022
(BJD)
|
2457307.91225 +0.003108-0.003090
(BJD)
|
||
|
b
|
0.497+0.225-0.286
|
--- | --- | ||
|
i
(deg)
|
--- | --- |
89.477967 +0.379188-0.731014
|
Nearby Data (within 30 arcseconds) Browse Nearby Data
+
- 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
-
Scaling K2. V. Statistical Validation of 60 New Exoplanets From K2 Campaigns 2-18
Christiansen et al. 2022 Reference Overview -
The Revised TESS Input Catalog and Candidate Target List
TICv8 Reference Overview -
Detection of Hundreds of New Planet Candidates and Eclipsing Binaries in K2 Campaigns 0-8
Kruse et al. 2019 Reference Overview -
Catalog of New K2 Exoplanet Candidates from Citizen Scientists
Zink et al. 2019 Reference Overview -
275 Candidates and 149 Validated Planets Orbiting Bright Stars in K2 Campaigns 0-10
Mayo et al. 2018 Reference Overview -
Planet Candidates from K2 Campaigns 5─8 and Follow-up Optical Spectroscopy
Petigura et al. 2018 Reference Overview -
The K2 Ecliptic Plane Input Catalog (EPIC) and Stellar Classifications of 138,600 Targets in Campaigns 1-8
EPIC Catalog Reference Overview -
All WISE Data Release
Cutri et al. 2014 Reference Overview -
2MASS All-Sky Catalog of Point Sources
2MASS Point Source Catalog Reference Overview
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- False Positive Planet
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- Aliases
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