LHS 1140 Overview

LHS 1140 0.22 R_⦿ 3096.00 K

LHS 1140 c

0.113 R_Jup

LHS 1140 b

0.154 R_Jup

Overview Notes System Parameters Nearby Data Legend

Architecture: LHS 1140; LHS 1140

Other Data: Bibliography 12; Exoplanet Archive Notes 1; Nearby Data 3

Discovery Data

Host	Planet	Method	Year	Reference	Disposition
LHS 1140	LHS 1140 c	Transit	2018	Ment et al. 2019	Confirmed Planet
LHS 1140	LHS 1140 b	Transit	2017	Dittmann et al. 2017	Confirmed Planet

Exoplanet Archive Notes (1)

LHS 1140

Typo in stellar luminosity in Table B.3. See literature discrepancies page. (Lillo-Box et al. 2020)

LHS 1140 Stellar Parameters (9 Solutions)

RA: 00h44m59.67s

Dec: -15d16m26.79s

Distance: 14.9861+0.0153-0.0152
pc

Parallax: 66.6996000±0.0673611 mas

Ecliptic Latitude: -18.45449 deg

Ecliptic Longitude: 4.09847 deg

Galactic Latitude: -78.05159 deg

Galactic Longitude: 115.40542 deg

Total Proper Motion: 675.8787442±0.0942503 mas/yr

Proper Motion (RA): 317.585000±0.120648 mas/yr

Proper Motion (Dec): -596.6170000±0.0852977 mas/yr

Photometry: m_V
14.150±0.062; m_TESS
11.2991000±0.0073288; m_J
9.612001±0.023000; m_H
9.092±0.026; m_Ks
8.821±0.024; m_W1
8.606±0.022; m_W2
8.391±0.019; m_W3
8.235±0.022; m_W4
8.133±0.265; m_Ic
---; m_Gaia
12.670600±0.000356; m_B
15.881±0.091

Tools: ExoFOP Target Overview Page; IRSA Finding Chart; TOI; Stellar Hosts

Source	Cadieux et al. 2024	Lillo-Box et al. 2020	TICv8	Ment et al. 2019	Gaia DR2	Dittmann et al. 2017	Hawley et al. 1996	ExoFOP-TESS TOI	ExoFOP-TESS TOI	Show Candidate Solutions >>	<< Hide Candidate Solutions
T_eff (K)	3096±48	2988±67	3166.0±157.0	3216±39	3837.4475+467.8520-348.4480	3131±100	---	3131	3131
L_✶ (log₁₀(L_⦿))	-2.4+0.0-0.0	-2.49+0.01-0.01	-2.3762+0.1006-0.1312	-2.36+0.01-0.01	---	-2.526+0.030-0.032	---	---	---
Metallicity (dex)	-0.15±0.09 [Fe/H]	-0.262±0.104 [Fe/H]	---	-0.24±0.10 [Fe/H]	---	-0.24±0.14 [Fe/H]	---	---	---
Age (Gyr)	>5	---	---	>5	---	>5	---	---	---
ρ_✶ (g/cm³)	25.8±1.0	---	25.9907118±0.4673645	---	---	---	---	---	---
M_✶ (M_⦿)	0.1844±0.0045	0.191+0.012-0.011	0.1845890±0.0201091	0.179±0.014	---	0.146±0.019	---	---	---
R_✶ (R_⦿)	0.2159±0.0030	0.2134+0.0036-0.0034	0.2155350±0.0065582	0.2139±0.0041	---	0.186±0.013	---	0.215534999966621±0.006558170000000	0.215534999966621±0.006558170000000
log g (log₁₀(cm/s²))	5.041±0.016	---	5.0372400±0.0210634	---	---	---	---	5.05701	5.05701
Sp. T	M4.5 V	---	---	---	---	M4.5 V	M4.5	---	---
P_rot (days)	131±5	---	---	131±5	---	131	---	---	---
γ (km/s)	---	---	---	---	---	-13.23±0.60	---	---	---

LHS 1140 c Planetary Parameters (5 Solutions)

Status: Confirmed Planet
Detected By: Radial Velocity, Transit

Tools: Transit Prediction Service; TOI; Transit

Source	Cadieux et al. 2024	Kokori et al. 2023	Lillo-Box et al. 2020	Ment et al. 2019	ExoFOP-TESS TOI	Show Candidate Solutions >>	<< Hide Candidate Solutions
T_eq (K)	422±7	---	708.9+8.0-7.8	438±9	394.384409708834
b	0.090+0.090-0.060	---	---	---	---
S (S_⨁)	5.3±0.4	---	---	6.16±0.37	5.71741815401029
M_p (M_⨁)	1.91±0.06	---	1.76+0.17-0.16	1.81±0.39	---
M_p (M_Jup)	0.00601±0.00019	---	0.00554+0.00053-0.00050	0.00569±0.00123	---
e	<0.050	---	<0.274	<0.31	---
i (deg)	89.80+0.14-0.19	89.92+0.06-0.09	89.913+0.046-0.049	89.92+0.06-0.09	---
P (days)	3.777940±0.000002	3.7779329±0.0000028	3.77792±0.00003	3.777931±0.000003	3.77794175247263±0.00000851805500
ρ (g/cm³)	5.1±0.4	---	6.07+0.81-0.74	4.7±1.1	---
R_p (R_⨁)	1.272±0.026	---	1.169+0.037-0.038	1.282±0.024	1.56599371757261±0.20743896000000
R_p (R_Jup)	0.1135±0.0023	---	0.1043+0.0033-0.0034	0.1144±0.0021	0.139708842354650±0.018506496313264
K (m/s)	2.42±0.07	---	2.22±0.20	2.35±0.49	---
a (au)	0.0270±0.0005	---	0.02734±0.00054	0.02675±0.00070	---
δ (%)	0.290±0.009	---	0.252+0.016-0.015	---	0.346945073899104±0.043044000000000
T₁₄ (hours)	1.13±0.02	---	1.100+0.025-0.024	---	1.47593251726274±0.09515379000000
T_C (days)	2458389.2939±0.0002	2458226.843969±0.000018	2458389.29383+0.00081-0.00082	2458226.843169±0.000026	2459141.1004880±0.0017719
a/R_✶	---	26.57±0.05	27.53+0.62-0.61	26.57±0.05	---
R_p/R_✶	---	0.05486±0.00013	---	0.05486±0.00013	---
M_p sin i (M_⨁)	---	---	1.71±0.18	---	---
M_p sin i (M_Jup)	---	---	0.00538±0.00057	---	---

LHS 1140 b Planetary Parameters (6 Solutions)

Status: Confirmed Planet
Detected By: Radial Velocity, Transit

Tools: Transit Prediction Service; TOI; Transit

Source	Cadieux et al. 2024	Kokori et al. 2023	Lillo-Box et al. 2020	Ment et al. 2019	Dittmann et al. 2017	ExoFOP-TESS TOI	Show Candidate Solutions >>	<< Hide Candidate Solutions
a/R_✶	---	95.3±1.1	96.4+2.2-2.1	95.34±1.06	101.0±6.0	---
T_eq (K)	226±4	---	378.9+4.3-4.2	235±5	230±20	157.089889569672
S (S_⨁)	0.43±0.03	---	---	0.503±0.030	0.46	0.143917610380433
M_p (M_⨁)	5.60±0.19	---	6.38+0.46-0.44	6.98±0.89	6.65±1.82	---
M_p (M_Jup)	0.0176±0.0006	---	0.0201+0.0014-0.0014	0.0220±0.0028	0.0209±0.0057	---
e	<0.043	---	<0.096	<0.06	<0.29	---
i (deg)	89.86±0.04	89.89+0.05-0.03	89.877+0.049-0.045	89.89+0.05-0.03	89.912±0.071	---
P (days)	24.73723±0.00002	24.737210±0.000017	24.73694+0.00041-0.00040	24.736959±0.000080	24.73712±0.00025	24.7373411600±0.0001405365
ρ (g/cm³)	5.9±0.3	---	8.04+0.84-0.80	7.5±1.0	12.5±3.4	---
R_p (R_⨁)	1.730±0.025	---	1.635±0.046	1.727±0.032	1.43±0.10	1.84394530919894±0.11457296500000
R_p (R_Jup)	0.1543±0.0022	---	0.1459±0.0041	0.1541±0.0029	0.128±0.009	0.164506065141047±0.010221532899954
R_p/R_✶	---	0.07390±0.00008	---	0.07390±0.00008	0.0708±0.0013	---
K (m/s)	3.80±0.11	---	4.21±0.24	4.85±0.55	5.34±1.10	---
a (au)	0.0946±0.0017	---	0.0957±0.0019	0.0936±0.0024	0.0875±0.0041	---
T_C (days)	2458399.9300±0.0003	2458103.084207±0.000043	2458399.9303+0.0012-0.0013	2456915.71154±0.00004	2456915.6997±0.0054	2458399.92864300±0.00112076
b	0.23+0.05-0.07	---	---	---	---	---
δ (%)	0.538±0.006	---	0.493±0.027	---	---	0.6560492087026±0.0296415740000
T₁₄ (hours)	2.15±0.05	---	2.055+0.048-0.049	---	---	2.06905097692685±0.12742876000000
M_p sin i (M_⨁)	---	---	6.09+0.48-0.47	---	---	---
M_p sin i (M_Jup)	---	---	0.0192+0.0015-0.0015	---	---	---