K2-197 Overview

K2-197 0.98 R_⦿ 5440.24 K

K2-197 b

0.228 R_Jup

Overview System Parameters Nearby Data Legend

Architecture: K2-197; K2-197

Other Data: Bibliography 10; Nearby Data 5

Discovery Data

Host	Planet	Method	Year	Reference	Disposition
K2-197	K2-197 b	Transit	2018	Mayo et al. 2018	Confirmed Planet

K2-197 Stellar Parameters (7 Solutions)

RA: 13h29m34.43s

Dec: -07d22m26.32s

Distance: 247.637+2.393-2.349
pc

Parallax: 4.0097600±0.0383686 mas

Ecliptic Latitude: 1.86425 deg

Ecliptic Longitude: 203.44705 deg

Galactic Latitude: 54.28324 deg

Galactic Longitude: 319.27444 deg

Total Proper Motion: 46.8809182±0.0714937 mas/yr

Proper Motion (RA): -46.7639000±0.0715606 mas/yr

Proper Motion (Dec): 3.3103100±0.0565808 mas/yr

Photometry: m_V
12.199±0.034; m_TESS
11.5275±0.0061; m_J
10.881±0.022; m_H
10.558±0.022; m_Ks
10.479±0.024; m_Kep
11.977; m_W1
10.426±0.023; m_W2
10.468±0.021; m_W3
10.487±0.076; m_W4
8.831; m_Gaia
11.993700±0.000273; m_B
12.884±0.030

Mission: K2 : Observed in Campaigns 6, 17

Tools: ExoFOP Target Overview Page; IRSA Finding Chart; 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	Petigura et al. 2018	Barros et al. 2016	Pope et al. 2016	Show Candidate Solutions >>	<< Hide Candidate Solutions
T_eff (K)	5627.0000+96.0359-165.0840	5667±58	5440.2427+98.7573-96.2622	5675.0±50.0	---	---	---
L_✶ (log₁₀(L_⦿))	-0.1137943+0.0159152-0.0116706	---	-0.11942558+0.00610948-0.00619665	---	---	---	---
γ (km/s)	---	---	-7.875897326970993±0.670626610486919	---	---	---	---
R_✶ (R_⦿)	0.9230000+0.0503422-0.0454216	0.93±0.01	0.98107750+0.03566310-0.03467230	0.910305 +0.041757-0.030971	0.96	---	---
Metallicity (dex)	---	0.080±0.050 [Fe/H]	---	-0.01±0.08 [Fe/H]	---	---	---
ρ_✶ (g/cm³)	1.7875470+0.4603421-0.3270684	1.160+0.754-0.522	---	---	---	---	---
M_✶ (M_⦿)	0.9970000+0.1307010-0.1142860	1.00±0.02	---	0.974836 +0.025160-0.029108	---	---	---
log g (log₁₀(cm/s²))	4.5063600+0.0880698-0.0672892	4.50±0.02	---	4.58±0.1	---	---	---

K2-197 b Planetary Parameters (5 Solutions)

Status: Confirmed Planet
Detected By: Transit

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

Source	Livingston et al. 2018	Mayo et al. 2018	Petigura et al. 2018	Barros et al. 2016	Pope et al. 2016	Show Candidate Solutions >>	<< Hide Candidate Solutions
P (days)	8.357881+0.000710-0.000686	8.357954 +0.000281-0.000284	8.357441 +0.000961-0.000993	8.35470947	8.358
δ (%)	---	---	---	0.055±0.003	0.0515
T₁₄ (hours)	---	---	3.47040+0.18960-0.18000	3.86300+0.23200-0.23200	3.21408
T_C (days)	2457218.18248+0.00364-0.00373	2457218.18296 +0.001575-0.001667	2457218.18632 +0.005019-0.004892	2457226.553418	2457218.187
b	0.45+0.33-0.31	---	0.49 +0.31-0.33	---	0.241
R_p (R_⨁)	2.56±0.16	2.50152939556 +0.187133349071-0.117616981209	2.5 +0.4-0.2	---	---
R_p (R_Jup)	0.228±0.014	0.2231715046 +0.0166949192-0.0104930842	0.22 +0.04-0.02	---	---
R_p/R_✶	0.0253+0.0021-0.0010	0.025193 +0.001489-0.000818	0.0241 +0.0032-0.0015	---	0.022698
a/R_✶	16.29+1.81-4.81	16.971210 +1.762358-4.316487	---	---	---
T_eq (K)	848±11	---	---	---	---
a (au)	0.0806+0.0006-0.0007	---	---	---	---
i (deg)	---	88.509276 +1.080660-1.884540	---	---	---

Nearby Data (5 Data Types within 30 arcseconds)

Known Objects: 1 Confirmed Planets; 3 K2 Targets; 4 2MASS Point Source Catalog

Data Files: 3 K2 Time Series; 1 Associated Literature Data

Bibliography (10 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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