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HAT-P-18 Overview

HAT-P-18 0.72 R⦿ 4870.00 K
HAT-P-18 b
0.995 RJup

HAT-P-18 Architecture & Discovery Information

Name Orbital Separation Planet Size Method Year Reference Disposition
HAT-P-18
HAT-P-18 b 5.51 d 11.15 R⨁ Transit 2010 Hartman et al. 2011 Confirmed Planet
HAT-P-18 b
  • Value for Stellar Surface Gravity drawn from Table 2, solution "Derived parameters" in ref. Value for Rot. Velocity drawn from Table 2, solution "RV and photometric data fit" in ref. (Esposito et al. 2014)
RA
17h05m23.13s
Dec
+33d00m44.37s
Distance
161.400+0.610-0.605
pc
Parallax
6.1669300±0.0231329 mas
Ecliptic Latitude
55.48655 deg
Ecliptic Longitude
249.54854 deg
Galactic Latitude
35.56176 deg
Galactic Longitude
55.652 deg
Total Proper Motion
39.2955032±0.0410087 mas/yr
Proper Motion (RA)
-14.0729000±0.0337627 mas/yr
Proper Motion (Dec)
-36.6891000±0.0419694 mas/yr
Photometry
mV
12.597±0.069
mTESS
11.7330±0.0061
mJ
10.822±0.020
mH
10.340±0.019
mKs
10.234±0.017
mW1
10.195±0.023
mW2
10.253±0.019
mW3
10.154±0.052
mW4
8.915
mGaia
12.368200±0.000283
mB
13.662±0.053
mg
13.5205000±0.0022484
mi
12.1300000±0.0010789
mr
12.420100±0.001168
mu
15.8651000±0.0066004
mz
13.2403000±0.0079283
Abundances
(Hypatia Catalog)
[Fe/H] 0.15±0.03 dex
[C/H] 0.22±0.18 dex
[O/H] 0.31±0.09 dex
[Na/H] 0.12±0.02 dex
[Mg/H] 0.11±0.03 dex
[Al/H] 0.13±0.06 dex
[Si/H] 0.16±0.05 dex
[Ca/H] 0.20±0.06 dex
[Y/H] 0.08±0.08 dex
[BaII/H] 0.07±0.19 dex
Tools
Planetary Systems
ExoFOP Target Overview Page
IRSA Finding Chart
TOI
Stellar Hosts
Source TICv8 Gaia DR2 Bonomo et al. 2017 Esposito et al. 2014 Knutson et al. 2014 Hartman et al. 2011 ExoFOP
Teff
(K)
4790.000+107.643-127.605
4804.1704+146.4800-49.1054
 4803±80 4870±50 --- 4803±80 4790.000±117.624
Metallicity
(dex)
0.14±0.08 [M/H] --- 0.100±0.080 0.10±0.06 [Fe/H] 0.14±0.08 [Fe/H] 0.10±0.08 [Fe/H] ---
v sin i
(km/s)
--- --- 0.50±0.50 1.58±0.18 --- 0.5±0.5 ---
ρ✶
(g/cm3)
2.6881299+0.5599999-0.8398660
 --- --- 2.94±0.30 --- --- ---
M✶
(M⦿)
0.7730000+0.0759889-0.1052010
 --- 0.770±0.031 0.770±0.027 0.77±0.03 0.770±0.031 ---
R✶
(R⦿)
0.7401130+0.0603302-0.0390065
0.7305036+0.0151658-0.0425886
 0.749±0.037 0.717±0.026 --- 0.749±0.037 0.7401130±0.0496683
log g
(log10(cm/s2))
4.5876500+0.0674392-0.1094610
 --- --- 4.613±0.031 --- 4.57±0.04 4.5876500±0.0884501
L✶
(log10(L⦿))
-0.5853674+0.0191334-0.0123049
-0.59158686+0.00285967-0.00287865
 --- --- ---
-0.569 +0.060-0.070
---
γ
(km/s)
--- -11.834511252635906±1.156579315342083 --- --- --- -11.92±0.28 ---
Age
(Gyr)
--- ---
12.4+1.4-6.4
 --- ---
12.4 +4.4-6.4
---
Sp. T
--- --- --- --- --- K2 ---
Print
Status
Confirmed Planet
Detected By
Radial Velocity, Transit
Tools
Planetary Systems
Transit Prediction Service
TOI
Transit
Atmospheric Spectroscopy
Source Hartman et al. 2011 Kokori et al. 2023 Fu et al. 2022 Patel & Espinoza 2022 Ivshina & Winn 2022 Kokori et al. 2022 Kirk et al. 2017 Bonomo et al. 2017 Seeliger et al. 2015 Esposito et al. 2014 Knutson et al. 2014 ExoFOP
a/R✶
16.04±0.75 16.39±0.24 16.52±0.06
17.25+0.27-0.41
 --- --- 16.39±0.24 --- 17.09±0.71 --- --- ---
i
(deg)
88.8±0.3 88.53±0.16 88.66±0.03 --- --- --- 88.53±0.16 88.80±0.30 88.79±0.21 88.79±0.25 --- ---
P
(days)
5.508023±0.000006 5.50802941±0.00000053 --- 5.5080232±0.0000056 5.5080287±0.0000014 5.5080300±0.0000008 --- 5.5080230±0.0000060 5.5080291±0.0000042 5.507978±0.000043 --- 5.50806821746442±0.00007165837500
Rp/R✶
0.1365±0.0015 0.1356±0.0028 ---
0.1324+0.0021-0.0016
 --- ---
0.1356+0.0028-0.0024
 --- 0.1362±0.0011 --- --- ---
TC
(days)
2454715.02174±0.00020
(BJD-UTC)
2457408.449133±0.000081
(BJD-TDB)
2459743.853395±0.000023
(BJD-TDB)
2459033.31735+0.00021-0.00022
(BJD)
2456411.49556±0.00053
(BJD-TDB)
2457276.25646±0.00010
(BJD-TDB)
2457507.59219566+0.00019400-0.00018100
(BJD)
2454715.02249±0.00020
(BJD-TDB)
2454715.02254±0.00039
(BJD-TDB)
--- --- 2458983.74499200±0.00038474
(BJD)
Teq
(K)
852±28 --- --- --- --- --- --- --- --- 841±15 --- 768.053368932309
b
0.324 +0.055-0.078
 --- ---
0.148+0.127-0.095
 --- --- --- --- --- 0.352±0.057 --- ---
ω
(deg)
120.0±56.0 --- --- --- --- --- --- --- --- 104±50
12+22-21
 ---
Mp
(M⨁)
62.610±4.132 --- --- --- --- --- --- 63.6±6.0 --- 62.3±2.5
58.2+10.8-10.2
 ---
Mp
(MJup)
0.197±0.013 --- --- --- --- --- --- 0.200±0.019 --- 0.196±0.008
0.183+0.034-0.032
 ---
e
0.084±0.048 --- --- --- --- --- --- <0.087 ---
0.0090+0.0300-0.0090
0.106+0.150-0.084
 ---
ρ
(g/cm3)
0.25±0.04 --- --- --- --- --- ---
0.251+0.052-0.042
 --- 0.286±0.042 --- ---
Rp
(R⨁)
11.153±0.583 --- --- --- --- --- --- 11.15±0.58 --- 10.6±0.5 --- 10.7299795003944±0.7361982000000
Rp
(RJup)
0.995±0.052 --- --- --- --- --- --- 0.9950±0.0520 --- 0.947±0.044 --- 0.957266301689180±0.065679317299565
K
(m/s)
27.1±1.6 --- --- --- --- --- --- 27.5±2.5 --- 26.9±1.1
25.4+5.8-4.5
 ---
a
(au)
0.0559±0.0007 --- --- --- --- --- --- 0.05596±0.00074 --- 0.0559±0.0007 --- ---
T14
(hours)
2.7144±0.0216 --- --- --- --- --- --- --- --- 2.69±0.06 --- 2.63999947014186±0.03443654300000
Tp
(days)
--- --- --- --- --- --- --- --- --- 2455706.7±0.7
(BJD)
--- ---
δ
(%)
--- --- --- --- --- --- --- --- --- 2.179±0.048 --- 2.15847573167274±0.01938142700000
λ
(deg)
--- --- --- --- --- --- --- --- --- 132±15 --- ---
S
(S⨁)
--- --- --- --- --- --- --- --- --- --- --- 82.2406616223352
Print
Literature Time Series (1 File Type, 1 File)
File Type Data Points Filter Reference
Radial Velocity Curve     24 Optical Spectra Hartman et al. 2011
Known Objects
1 Confirmed Planets
1 2MASS Point Source Catalog
Data Files
4 KELT Time Series
1 SuperWASP Time Series
1 Associated Literature Data
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