K2-117 | NASA Exoplanet Archive

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

Exoplanet Archive Notes (1)

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K2-117

Multiple stellar densities are derived in ref. (Livingston et al. 2018)

K2-117 Stellar Parameters (12 Solutions)

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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: m_V
14.639±0.149; m_TESS
12.7482000±0.0073041; m_J
11.447±0.023; m_H
10.801±0.029; m_Ks
10.589±0.025; m_Kep
13.905; m_W1
10.489±0.022; m_W2
10.440±0.019; m_W3
10.334±0.079; m_W4
8.9; m_Gaia
13.801200±0.000243; m_B
16.129±0.030; m_g
15.460300±0.003499; m_i
15.4973000±0.0129116; m_r
14.0228000±0.0034039; m_u
18.0974000±0.0126997; m_z
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
T_eff (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	---	---	---	---	---	---	---	---	---	---	---

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K2-117 b Planetary Parameters (8 Solutions)

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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	Pope et al. 2016	Barros 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	1.292	1.29162600
R_p/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	---
δ (%)	---	---	---	0.1817 +0.0064-0.0069	---	0.156679595449263±0.019134113000000	0.1317	0.146±0.014
T₁₄ (hours)	---	---	---	1.15200+0.06960-0.05760	1.19040+0.06960-0.06960	1.3077870847698807±0.1752353800000000	1.15296	1.38100+0.42700-0.42700
T_C (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)	2457140.193 (BJD)	2457142.770271 (BJD)
R_p (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	---	---
R_p (R_Jup)	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	---	---
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	---	---	---	---
T_eq (K)	868±14	---	---	---	---	856.6929762927589	---	---
a (au)	0.0189±0.0001	0.0188±0.0007	0.019±0.001	---	---	---	---	---
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	---	---	---	---	---

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K2-117 c Planetary Parameters (5 Solutions)

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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	---
T_eq (K)	537±9	---	---	---	---
b	0.40+0.32-0.28	---	---	---	0.47 +0.31-0.32
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
R_p (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
R_p (R_Jup)	0.184±0.011	0.173+0.020-0.019	0.181±0.012	0.156 +0.028-0.012	0.19±0.04
R_p/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
a (au)	0.0492±0.0003	0.0491±0.0017	0.051±0.002	---	---
T_C (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)
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	---	---
δ (%)	---	---	---	0.1686 +0.0048-0.0053	---
T₁₄ (hours)	---	---	---	2.10960+0.05760-0.07680	2.17920+0.17040-0.14880

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Nearby Data (within 30 arcseconds) Browse Nearby Data

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Known Objects: 2 Confirmed Planets; 2 K2 Targets; 2 2MASS Point Source Catalog

Data Files: 1 K2 Time Series; 2 Associated Literature Data

Bibliography (13 References)

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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
Sixty Validated Planets from K2 Campaigns 5-8
Livingston et al. 2018 Reference Overview
Gaia Data Release 2
Gaia DR2 Reference Overview
Exoplanets around Low-mass Stars Unveiled by K2
Hirano et al. 2018 Reference Overview
Planet Candidates from K2 Campaigns 5─8 and Follow-up Optical Spectroscopy
Petigura et al. 2018 Reference Overview
Characterizing K2 Candidate Planetary Systems Orbiting Low-mass Stars. II. Planetary Systems Observed During Campaigns 1-7
Dressing et al. 2017 Reference Overview
ExoFOP TOI Table
ExoFOP
Transiting exoplanet candidates from K2 Campaigns 5 and 6
Pope et al. 2016 Reference Overview
New planetary and eclipsing binary candidates from campaigns 1-6 of the K2 mission
Barros et al. 2016 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

Legend

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System
Star
Confirmed
Candidate
False Positive Planet
Controversial
False Positive

Aliases
Data Access
Transit Prediction Service
Time Series
Kepler | K2

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K2-117 Overview

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