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K2-117 Overview

  • Star: K2-117
    • Stellar Radius: 0.49 Solar Radius
    • Stellar Effective Temperature: 3842.12 K
    • Planet: K2-117 b
      • Disposition Confirmed
      • Planet Radius 0.181 Jupiter Radius
    • Planet: K2-117 c
      • Disposition Confirmed
      • Planet Radius 0.184 Jupiter Radius

K2-117 Architecture & Discovery Information

Name Orbital Separation Planet Size Method Year Reference Disposition
K2-117
K2-117 b 1.29 d 2.03 R⨁ Transit 2017 Dressing et al. 2017 Confirmed Planet
K2-117 c 5.44 d 2.06 R⨁ Transit 2017 Dressing et al. 2017 Confirmed Planet
K2-117
RA
08h55m25.38s
Dec
+10d28m09.18s
Distance
101.632+0.374-0.372
pc
Parallax
9.8106600±0.0358559 mas
Ecliptic Latitude
-6.62344 deg
Ecliptic Longitude
133.30168 deg
Galactic Latitude
32.24587 deg
Galactic Longitude
217.62487 deg
Total Proper Motion
21.4354680±0.0415061 mas/yr
Proper Motion (RA)
11.5489000±0.0559769 mas/yr
Proper Motion (Dec)
18.0583000±0.0338496 mas/yr
Photometry
mV 14.639±0.149
mTESS 12.7482000±0.0073041
mJ 11.447±0.023
mH 10.801±0.029
mKs 10.589±0.025
mKep 13.905
mW1 10.489±0.022
mW2 10.440±0.019
mW3 10.334±0.079
mW4 8.9
mGaia 13.801200±0.000243
mB 16.129±0.030
mg 15.460300±0.003499
mi 15.4973000±0.0129116
mr 14.0228000±0.0034039
mu 18.0974000±0.0126997
mz 12.6845000±0.0035811
Mission
K2: Observed in Campaigns 5, 18
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 TICv8 Livingston et al. 2018 Gaia DR2 Hirano et al. 2018 Dressing et al. 2017 Kruse et al. 2019 Kruse et al. 2019 Petigura et al. 2018 Petigura et al. 2018 ExoFOP Barros et al. 2016 Pope et al. 2016
Teff
(K)
3689.0±157.0 3778±53
3844.2634+537.6770-259.2630
 3676±70
3842.118652+82.262527-81.779152
 --- --- --- --- 3689±157 --- ---
M✶
(M⦿)
0.5124370±0.0204314 0.54±0.01 --- 0.532±0.056 0.582006±0.058201 --- --- --- --- --- --- ---
R✶
(R⦿)
0.5147450±0.0154963 0.51±0.01 --- 0.513±0.051
0.491598+0.028268-0.028272
0.400 +0.070-0.023
0.400 +0.070-0.023
0.52 0.52 0.5147449970245361±0.0154963000000000 --- ---
L✶
(log10(L⦿))
-1.35449+0.09046-0.11439
 --- ---
-1.4+0.1-0.1
 --- --- --- --- --- --- --- ---
Metallicity
(dex)
--- -0.050±0.130 [Fe/H] --- -0.22±0.12 [Fe/H] --- --- --- --- --- --- --- ---
log g
(log10(cm/s2))
4.7245200±0.0088316 4.75±0.01 --- 4.747±0.046 --- --- --- --- --- 4.72452000±0.00883165 --- ---
Sp. T
--- --- --- M1.0 V --- --- --- --- --- --- --- ---
ρ✶
(g/cm3)
5.2969994±0.2674948 --- --- --- --- --- --- --- --- --- --- ---
Print
Status
Confirmed Planet
Detected By
Transit
Tools
Planetary Systems
Transit Prediction Service
TOI
K2 Names
K2 Planets and Candidates
Transit
Source Livingston et al. 2018 Hirano et al. 2018 Dressing et al. 2017 Kruse et al. 2019 Petigura et al. 2018 ExoFOP Barros et al. 2016 Pope et al. 2016
b
0.39+0.31-0.27
 --- --- ---
0.47 +0.33-0.32
--- --- 0
P
(days)
1.291600+0.000049-0.000051
 1.291563±0.000026 1.291505±0.000040
1.291605 +0.000018-0.000019
1.291651 +0.000050-0.000051
1.2916033570324492±0.0000110062240000 1.29162600 1.292
Rp
(R⨁)
2.03±0.10 2.03±0.21 1.96±0.12
1.74 +0.33-0.27
2.1 +0.5-0.4
2.451177478924633±0.243479770000000 --- ---
Rp
(RJup)
0.181±0.009 0.181±0.019 0.175±0.011
0.155 +0.029-0.024
 0.19±0.04 0.2186797840524993±0.0217218475538993 --- ---
Rp/R✶
0.0363+0.0021-0.0014
0.0362+0.0008-0.0007
0.036604+0.000901-0.000794
0.0399 +0.0027-0.0058
0.0373 +0.0041-0.0017
--- --- 0.036291
T14
(hours)
--- --- ---
1.15200+0.06960-0.05760
1.19040+0.06960-0.06960
 1.3077870847698807±0.1752353800000000
1.38100+0.42700-0.42700
 1.15296
TC
(days)
2457142.77452+0.00162-0.00158
(BJD)
2457138.90021±0.00082
(BJD)
2457142.776±0.001
(BJD)
2457140.19095±0.00067
(BJD)
2457142.77376 +0.001697-0.001637
(BJD)
2459230.0140020±0.0015072
(BJD)
2457142.770271
(BJD)
2457140.193
(BJD)
δ
(%)
--- --- ---
0.1817 +0.0064-0.0069
--- 0.156679595449263±0.019134113000000 0.146±0.014 0.1317
a/R✶
7.87+0.81-1.77
9.4+0.4-0.5
8.32+0.43-0.46
8.18 +2.61-0.86
--- --- --- ---
S
(S⨁)
--- 123.6±28.2
145.8+21.5-18.9
 --- --- 127.29807224817971 --- ---
ω
(deg)
--- ---
-22.6300000+136.8294570-118.2304350
 --- --- --- --- ---
e
--- ---
0.0600000+0.1383040-0.0531320
 --- --- --- --- ---
i
(deg)
--- ---
88.36+1.14-1.37
 --- --- --- --- ---
a
(au)
0.0189±0.0001 0.0188±0.0007 0.019±0.001 --- --- --- --- ---
Teq
(K)
868±14 --- --- --- --- 856.6929762927589 --- ---
Print
Status
Confirmed Planet
Detected By
Transit
Tools
Planetary Systems
Transit Prediction Service
K2 Names
K2 Planets and Candidates
Transit
Source Livingston et al. 2018 Hirano et al. 2018 Dressing et al. 2017 Kruse et al. 2019 Petigura et al. 2018
a/R✶
18.52+2.17-4.33
19.7+2.0-4.0
20.93+1.51-1.32
18.8 +4.0-1.7
---
P
(days)
5.444017+0.000462-0.000455
 5.44425±0.00032
5.444820+0.000397-0.000417
 5.44425±0.00014
5.443984 +0.000518-0.000516
Rp
(R⨁)
2.06±0.12
1.94+0.22-0.21
 2.03±0.13
1.75 +0.31-0.14
2.1 +0.5-0.4
Rp
(RJup)
0.184±0.011
0.173+0.020-0.019
 0.181±0.012
0.156 +0.028-0.012
 0.19±0.04
Rp/R✶
0.0368+0.0024-0.0019
0.0347+0.0018-0.0013
0.037890+0.001125-0.001053
0.0402 +0.0012-0.0021
0.0369 +0.0038-0.0020
δ
(%)
--- --- ---
0.1686 +0.0048-0.0053
---
T14
(hours)
--- --- ---
2.10960+0.05760-0.07680
2.17920+0.17040-0.14880
TC
(days)
2457143.56630+0.00358-0.00352
(BJD)
2457138.12220±0.00208
(BJD)
2457143.560+0.004-0.003
(BJD)
2457143.5638±0.0012
(BJD)
2457143.56578 +0.004075-0.003950
(BJD)
b
0.40+0.32-0.28
 --- --- ---
0.47 +0.31-0.32
S
(S⨁)
--- 18.1±4.1
21.4+3.2-2.8
 --- ---
ω
(deg)
--- ---
-77.0600000+61.8212350-61.7988390
 --- ---
e
--- ---
0.150000+0.178886-0.115822
 --- ---
i
(deg)
--- ---
89.49+0.36-0.48
 --- ---
a
(au)
0.0492±0.0003 0.0491±0.0017 0.051±0.002 --- ---
Teq
(K)
537±9 --- --- --- ---
Print
Known Objects
2 Confirmed Planets
2 K2 Targets
2 2MASS Point Source Catalog
Data Files
1 K2 Time Series
2 Associated Literature Data
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