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HD 18438 Overview

HD 18438 70.84 R⦿ 3854.00 K
HD 18438 b
Architecture
HD 18438
HD 18438
HD 18438 b
Other Data
Bibliography 2
Exoplanet Archive Notes 1
Nearby Data 3
Discovery Data
Host Planet Method Year Reference Disposition
HD 18438 HD 18438 b Radial Velocity 2023 Lee et al. 2023 Confirmed Planet
HD 18438 b
RA
03h06m07.64s
Dec
+79d25m06.89s
Distance
224.146+9.017-8.356
pc
Parallax
4.443300±0.171209 mas
Ecliptic Latitude
58.08871 deg
Ecliptic Longitude
76.16931 deg
Galactic Latitude
18.19302 deg
Galactic Longitude
129.0842 deg
Total Proper Motion
36.894637±0.240376 mas/yr
Proper Motion (RA)
-35.290500±0.237915 mas/yr
Proper Motion (Dec)
10.76080±0.26541 mas/yr
Photometry
mV
5.50474±0.02300
mTESS
3.77665±0.00780
mJ
2.470±0.246
mH
1.606±0.194
mKs
1.325±0.216
mW1
-1.221
mW2
-0.502
mW3
1.212±0.011
mW4
1.114±0.016
mGaia
4.7319900±0.0048084
mB
7.144±0.013
Tools
ExoFOP Target Overview Page
IRSA Finding Chart
Stellar Hosts
Source Lee et al. 2023 TICv8
Teff
(K)
3860±100 3854.0±122.0
R✶
(R⦿)
88.475±4.424 70.8356
L✶
(log10(L⦿))
2.97+0.02-0.02
 ---
Metallicity
(dex)
-0.4±0.1 [Fe/H] ---
v sin i
(km/s)
5.5±0.2 ---
Age
(Gyr)
5.5±2.4 ---
M✶
(M⦿)
1.84±0.09 ---
log g
(log10(cm/s2))
0.9±0.1 ---
Sp. T
M2.5 III ---
Print
Status
Confirmed Planet
Detected By
Radial Velocity
Tools
Source Lee et al. 2023
Tp
(days)
2455367±45
ω
(deg)
167±24
Mp sin i
(M⨁)
6674±318
Mp sin i
(MJup)
21±1
e
0.1±0.1
P
(days)
803±5
K
(m/s)
305±18
a
(au)
2.1±0.1
Print
Known Objects
1 Confirmed Planets
1 2MASS Point Source Catalog
Data Files
1 Associated Literature Data
System
Star
Confirmed
Candidate
False Positive Planet
Controversial
False Positive
Aliases
Data Access
Transit Prediction Service
Time Series
Kepler | K2
External Link
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NASA Exoplanet Archive is operated by the California Institute of Technology, under contract with the National Aeronautics and Space Administration under the Exoplanet Exploration Program.