K2-188 Overview

K2-188 1.11 R_⦿ 5982.00 K

K2-188 b

0.120 R_Jup

K2-188 c

0.252 R_Jup

Overview Notes 3 Parameters Nearby Data Bibliography 12 Legend

Architecture: K2-188; K2-188

Discovery Data

Host	Planet	Orbital Separation	Planet Size	Method	Year	Reference	Disposition
K2-188	K2-188 b	1.74 d	1.35 R_⨁	Transit	2018	Mayo et al. 2018	Confirmed Planet
K2-188	K2-188 c	7.81 d	2.83 R_⨁	Transit	2018	Mayo et al. 2018	Confirmed Planet

Exoplanet Archive Notes (3)

K2-188

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

K2-188 b

Candidate identifier changed to match previous publication. (Mayo et al. 2018)

K2-188 c

Candidate identifier changed to match previous publication. (Mayo et al. 2018)

K2-188 Stellar Parameters (9 Solutions)

RA: 08h39m15.29s

Dec: +23d21m26.77s

Distance: 446.821+8.707-8.385
pc

Parallax: 2.2097300±0.0424739 mas

Ecliptic Latitude: 4.77514 deg

Ecliptic Longitude: 126.1438 deg

Galactic Latitude: 33.44489 deg

Galactic Longitude: 201.65994 deg

Total Proper Motion: 16.7652765±0.0625128 mas/yr

Proper Motion (RA): 13.1762000±0.0702477 mas/yr

Proper Motion (Dec): -10.366400±0.047422 mas/yr

Photometry: m_V
12.657±0.092; m_TESS
12.0789±0.0069; m_J
11.502±0.020; m_H
11.246±0.018; m_Ks
11.149±0.022; m_Kep
12.704; m_W1
11.121±0.022; m_W2
11.190±0.021; m_W3
11.286±0.214; m_W4
8.797; m_Gaia
12.490300±0.000144; m_B
13.219±0.015; m_g
12.9520000±0.0009646; m_i
12.440500±0.001002; m_r
12.5372000±0.0009478; m_u
15.4736000±0.0102688; m_z
14.0147000±0.0141738

Abundances (Hypatia Catalog): [Fe/H] -0.07±0.04 dex; [C/H] -0.07±0.09 dex; [Na/H] -0.18±0.04 dex; [Mg/H] -0.03±0.07 dex; [Al/H] -0.11±0.06 dex; [Ca/H] -0.02±0.06 dex; [BaII/H] -0.04±0.19 dex

Mission: K2 : Observed in Campaigns 5, 16, 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	Mayo et al. 2018	Kruse et al. 2019	Petigura et al. 2018	ExoFOP	Pope et al. 2016	Barros et al. 2016	Show Candidate Solutions >>	<< Hide Candidate Solutions
T_eff (K)	5906.9000+99.5434-116.5890	5977±87	5904.500+232.865-48.000	5982.0±50.0	---	---	5906.9±108.1	---	---
Metallicity (dex)	-0.0630±0.0410 [M/H]	-0.01±0.05 [Fe/H]	---	0.16±0.08 [Fe/H]	---	---	---	---	---
M_✶ (M_⦿)	1.070000+0.167147-0.119452	1.06±0.03	---	1.106611 +0.031235-0.024977	---	---	---	---	---
R_✶ (R_⦿)	1.2172200+0.0525226-0.0626332	1.19±0.03	1.1811850+0.0194415-0.0879330	1.109202 +0.107813-0.063121	1.181 +0.088-0.019	1.19	1.22±0.06	---	---
log g (log₁₀(cm/s²))	4.2967100+0.0645080-0.0921618	4.31±0.03	---	4.36±0.1	---	---	4.30±0.08	---	---
L_✶ (log₁₀(L_⦿))	0.21087100+0.02408453-0.01968954	---	0.18406309+0.01182931-0.01216053	---	---	---	---	---	---
γ (km/s)	---	---	-34.20696890406417±1.37159489368993	---	---	---	---	---	---
ρ_✶ (g/cm³)	0.83645560+0.21952550-0.13870410	---	---	---	---	---	---	---	---

K2-188 b Planetary Parameters (2 Solutions)

Status: Confirmed Planet

Detected By: Transit

Tools: Planetary Systems; Transit Prediction Service; K2 Names; K2 Planets and Candidates; Transit

Source	Livingston et al. 2018	Mayo et al. 2018
a/R_✶	4.67+0.74-1.07	4.724953 +0.757810-1.659174
T_eq (K)	1692+33-32	---
b	0.40+0.32-0.27	---
P (days)	1.742169+0.000457-0.000365	1.742983 +0.000256-0.000260
R_p (R_⨁)	1.35±0.11	1.25908622223 +0.164118029845-0.112933410057
R_p (R_Jup)	0.120±0.010	0.1123281490 +0.0146416299-0.0100752440
R_p/R_✶	0.0104+0.0009-0.0008	0.010407 +0.000904-0.000722
a (au)	0.0289±0.0003	---
T_C (days)	2457140.47617+0.00719-0.00832 (BJD)	2457142.21335 +0.004960-0.004669
i (deg)	---	83.928152 +4.435603-9.890217

K2-188 c Planetary Parameters (7 Solutions)

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	Mayo et al. 2018	Kruse et al. 2019	Petigura et al. 2018	ExoFOP	Barros et al. 2016	Pope et al. 2016	Show Candidate Solutions >>	<< Hide Candidate Solutions
T_eq (K)	1026±20	---	---	---	1085	---	---
S (S_⨁)	---	---	---	---	230.628	---	---
P (days)	7.810253+0.000846-0.000844	7.807595 +0.000564-0.000597	7.80905±0.00054	7.809757 +0.000841-0.000827	7.8092052±0.0000171	7.81110453	7.809
R_p (R_⨁)	2.83±0.15	2.62511304037 +0.308255567914-0.179477909427	2.79 +0.27-0.41	2.9 +0.5-0.3	2.708890±0.135045	---	---
R_p (R_Jup)	0.252±0.013	0.2341968990 +0.0275007198-0.0160119466	0.249 +0.024-0.037	0.26 +0.04-0.03	0.2416714±0.0120479	---	---
δ (%)	---	---	0.052 +0.0021-0.0022	---	0.0480000000±0.0000101394	0.034±0.004	0.042
T₁₄ (hours)	---	---	3.69600+0.14400-0.16800	3.58080+0.13920-0.12960	3.393±0.534	3.43300+0.78000-0.78000	3.40296
T_C (days)	2457144.85447+0.00397-0.00419 (BJD)	2457144.86605 +0.002563-0.002623	2457144.8589 +0.0027-0.0026 (BJD)	2457144.85632 +0.004011-0.004260 (BJD)	2459550.0965640±0.0039616 (BJD)	2457144.859822 (BJD)	2457144.86 (BJD)
b	0.37+0.32-0.26	---	---	0.46 +0.32-0.30	---	---	0.204
R_p/R_✶	0.0218+0.0012-0.0008	0.021697 +0.001430-0.000822	0.0217 +0.0013-0.0032	0.0224 +0.0025-0.0011	---	---	0.020497
a/R_✶	15.56+1.31-3.41	15.210352 +2.138244-4.824225	14.5 +4.5-2.0	---	---	---	---
a (au)	0.0785±0.0008	---	---	---	---	---	---
i (deg)	---	88.097624 +1.399838-2.577581	---	---	---	---	---

Nearby Data (within 30 arcseconds)

Known Objects: 2 Confirmed Planets; 3 K2 Targets; 1 2MASS Point Source Catalog

Data Files: 1 SuperWASP Time Series; 1 KELT Praesepe Time Series; 2 K2 Time Series; 2 Associated Literature Data

Bibliography (12 References)

System

Star

Confirmed

Candidate

False Positive Planet

Controversial

False Positive

Aliases

Data Access

Transit Prediction Service

Time Series

Kepler | K2

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