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LHS 1903 Overview

LHS 1903 0.53 R⦿ 3691.00 K
LHS 1903 b
0.123 RJup
LHS 1903 c
0.183 RJup
LHS 1903 d
0.223 RJup
LHS 1903 e
0.155 RJup
Architecture
LHS 1903
LHS 1903
LHS 1903 b
LHS 1903 c
LHS 1903 d
LHS 1903 e
Discovery Data
Host Planet Orbital Separation Planet Size Method Year Reference Disposition
LHS 1903 LHS 1903 b 2.16 d 1.38 R⨁ Transit 2026 Wilson et al. 2026 Confirmed Planet
LHS 1903 LHS 1903 c 6.23 d 2.05 R⨁ Transit 2026 Wilson et al. 2026 Confirmed Planet
LHS 1903 LHS 1903 d 12.57 d 2.5 R⨁ Transit 2026 Wilson et al. 2026 Confirmed Planet
LHS 1903 LHS 1903 e 29.32 d 1.73 R⨁ Transit 2026 Wilson et al. 2026 Confirmed Planet
RA
07h11m27.80s
Dec
+48d19m40.56s
Distance
35.6917±0.0833 pc
Parallax
27.9890000±0.0649198 mas
Ecliptic Latitude
25.69685 deg
Ecliptic Longitude
103.07902 deg
Galactic Latitude
23.09396 deg
Galactic Longitude
168.98897 deg
Total Proper Motion
578.0940786±0.0820067 mas/yr
Proper Motion (RA)
-93.0762000±0.0909378 mas/yr
Proper Motion (Dec)
-570.5520000±0.0817557 mas/yr
Photometry
mV
12.230±0.035
mTESS
10.3595000±0.0074136
mJ
9.061±0.027
mH
8.418±0.021
mKs
8.212±0.021
mGaia
11.394400±0.001371
mB
13.652±0.056
Tools
Planetary Systems
ExoFOP Target Overview Page
IRSA Finding Chart
TOI
Stellar Hosts
Source Wilson et al. 2026 TICv8 ExoFOP ExoFOP ExoFOP Show Candidate Solutions >> << Hide Candidate Solutions
Teff
(K)
3664±70 3691.0±157.0 3691±157 3691±157 3691±157
L✶
(log10(L⦿))
---
-1.32451+0.09013-0.11388
 --- --- ---
ρ✶
(g/cm3)
5.34+0.24-0.20
 4.946460±0.251364 --- --- ---
M✶
(M⦿)
0.538+0.039-0.030
 0.5290040±0.0202865 --- --- ---
R✶
(R⦿)
0.539±0.014 0.5322430±0.0158087 0.53±0.02 0.53±0.02 0.53±0.02
log g
(log10(cm/s2))
4.75±0.12 4.7093100±0.0091437 4.70931000±0.00914374 4.70931000±0.00914374 4.70931000±0.00914374
Metallicity
(dex)
-0.11±0.09 [Fe/H] --- --- --- ---
Age
(Gyr)
7.08+2.87-1.98
 --- --- --- ---
Sp. T
M --- --- --- ---
Prot
(days)
40.8 --- --- --- ---
Print
Status
Confirmed Planet
Detected By
Radial Velocity, Transit
Tools
Planetary Systems
Transit Prediction Service
TOI
Transit
Source Wilson et al. 2026 ExoFOP Show Candidate Solutions >> << Hide Candidate Solutions
a/R✶
10.590+0.359-0.350
 ---
Teq
(K)
796±20 944
b
0.174+0.088-0.091
 ---
S
(S⨁)
66.66+7.08-6.46
 132.347
ω
(deg)
216+80-87
 ---
Mp
(M⨁)
3.28±0.42 ---
Mp
(MJup)
0.0103±0.0013 ---
e
0.015+0.014-0.010
 ---
P
(days)
2.1555098+0.0000026-0.0000029
 2.1555232±0.0000092
ρ
(g/cm3)
6.82+1.15-1.04
 ---
Rp
(R⨁)
1.382±0.046 1.478090±0.113091
Rp
(RJup)
0.1233±0.0041 0.1318666±0.0100893
Rp/R✶
0.02351+0.00047-0.00049
 ---
K
(m/s)
2.46±0.30 ---
a
(au)
0.02656+0.00055-0.00058
 ---
δ
(%)
0.0553+0.0022-0.0023
 0.07420000±0.00898839
T14
(hours)
1.562+0.058-0.057
 1.445±0.724
TC
(days)
2458844.5771+0.0012-0.0009
(BJD)
2459961.1325170±0.0034359
(BJD)
Print
Status
Confirmed Planet
Detected By
Radial Velocity, Transit
Tools
Planetary Systems
Transit Prediction Service
TOI
Transit
Source Wilson et al. 2026 ExoFOP Show Candidate Solutions >> << Hide Candidate Solutions
Teq
(K)
559±14 910
S
(S⨁)
16.20+1.72-1.57
 114.271
P
(days)
6.226185+0.000028-0.000026
 6.2262315±0.0000277
Rp
(R⨁)
2.046+0.078-0.074
 2.755240±0.963981
Rp
(RJup)
0.1825+0.0070-0.0066
 0.2458065±0.0860008
δ
(%)
0.1210+0.0069-0.0060
 0.148800±0.154412
T14
(hours)
1.986+0.125-0.134
 2.239±0.772
TC
(days)
2458844.3692+0.0026-0.0021
(BJD)
2459952.6352710±0.0024431
(BJD)
a/R✶
21.480+0.729-0.711
 ---
b
0.513+0.088-0.093
 ---
ω
(deg)
288+38-31
 ---
Mp
(M⨁)
4.55+0.73-0.69
 ---
Mp
(MJup)
0.0143+0.0023-0.0022
 ---
e
0.0890+0.0360-0.0300
 ---
ρ
(g/cm3)
2.91+0.60-0.52
 ---
Rp/R✶
0.03479+0.00097-0.00088
 ---
K
(m/s)
2.40+0.37-0.35
 ---
a
(au)
0.05387+0.00112-0.00117
 ---
Print
Status
Confirmed Planet
Detected By
Radial Velocity, Transit
Tools
Planetary Systems
Transit Prediction Service
TOI
Transit
Source Wilson et al. 2026 ExoFOP Show Candidate Solutions >> << Hide Candidate Solutions
Teq
(K)
442±11 439
S
(S⨁)
6.35+0.67-0.62
 6.20302
P
(days)
12.566287+0.000032-0.000028
 12.5739572±0.0012622
Rp
(R⨁)
2.500+0.078-0.077
 2.43590±0.11049
Rp
(RJup)
0.2230+0.0070-0.0069
 0.217317±0.009857
δ
(%)
0.1808+0.0062-0.0060
 0.2170000±0.0118687
T14
(hours)
2.762+0.127-0.134
 2.722±0.298
TC
(days)
2458844.3901+0.0019-0.0021
(BJD)
2459598.3722830±0.0023637
(BJD)
a/R✶
34.32+1.20-1.10
 ---
b
0.329+0.096-0.112
 ---
ω
(deg)
233+29-19
 ---
Mp
(M⨁)
5.96+1.15-1.13
 ---
Mp
(MJup)
0.0188+0.0036-0.0036
 ---
e
0.112+0.055-0.044
 ---
ρ
(g/cm3)
2.09+0.47-0.43
 ---
Rp/R✶
0.04253+0.00072-0.00071
 ---
K
(m/s)
2.48±0.46 ---
a
(au)
0.08604+0.00178-0.00186
 ---
Print
Status
Confirmed Planet
Detected By
Radial Velocity, Transit
Tools
Planetary Systems
Transit Prediction Service
Transit
Source Wilson et al. 2026
a/R✶
60.35±2.00
Teq
(K)
333+9-8
b
0.120+0.094-0.079
S
(S⨁)
2.05+0.22-0.20
ω
(deg)
263+63-76
Mp
(M⨁)
5.79+1.60-1.61
Mp
(MJup)
0.0182+0.0050-0.0051
e
0.014+0.015-0.010
P
(days)
29.31773+0.00028-0.00025
ρ
(g/cm3)
6.10+1.83-1.71
Rp
(R⨁)
1.732+0.059-0.058
Rp
(RJup)
0.1545+0.0053-0.0052
Rp/R✶
0.02947±0.00062
K
(m/s)
1.82±0.50
a
(au)
0.15135+0.00314-0.00338
δ
(%)
0.0868+0.0037-0.0036
T14
(hours)
3.780+0.134-0.133
TC
(days)
2458868.8152+0.0071-0.0083
(BJD)
Print
Known Objects
4 Confirmed Planets
3 2MASS Point Source Catalog
Data Files
2 SuperWASP Time Series
4 Associated Literature Data
System
Star
Confirmed
Candidate
False Positive Planet
Controversial
False Positive
Aliases
Data Access
Transit Prediction Service
Time Series
Kepler | K2
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