IPAC Logo
NASA
Exoplanet
Archive
A
service of
NASA
Exoplanet
Science
Institute

HAT-P-20 Overview

HAT-P-20 1.03 R⦿ 4502.00 K
HAT-P-20 b
0.867 RJup

HAT-P-20 Architecture & Discovery Information

Name Orbital Separation Planet Size Method Year Reference Disposition
HAT-P-20
HAT-P-20 b 2.88 d 9.72 R⨁ Transit 2010 Bakos et al. 2010 Confirmed Planet
RA
07h27m39.94s
Dec
+24d20m10.03s
Distance
71.0374+0.1994-0.1983
pc
Parallax
14.0483000±0.0391097 mas
Ecliptic Latitude
2.39826 deg
Ecliptic Longitude
109.89653 deg
Galactic Latitude
18.39436 deg
Galactic Longitude
194.41535 deg
Total Proper Motion
96.3636397±0.0599735 mas/yr
Proper Motion (RA)
-4.9852600±0.0683012 mas/yr
Proper Motion (Dec)
-96.2346000±0.0599496 mas/yr
Photometry
mV
11.231±0.023
mTESS
10.2832±0.0061
mJ
9.276±0.022
mH
8.743±0.021
mKs
8.601±0.019
mW1
8.559±0.028
mW2
8.648±0.022
mW3
8.515±0.030
mW4
8.063±0.362
mGaia
10.990300±0.001176
mB
12.539±0.075
mg
15.6262000±0.0150073
mi
12.0708000±0.0019816
mr
13.1135000±0.0032342
mu
15.8447000±0.0108829
mz
13.3036000±0.0146086
Abundances
(Hypatia Catalog)
[Fe/H] 0.20±0.12 dex
[C/H] 0.13±0.11 dex
[O/H] 0.08±0.06 dex
[Na/H] 0.54±0.04 dex
[Mg/H] 0.11±0.03 dex
[Al/H] 0.32±0.08 dex
[Si/H] 0.22±0.12 dex
[Ca/H] 0.16±0.08 dex
[BaII/H] 0.15±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. 2017 Salz et al. 2015 Knutson et al. 2014 Mortier et al. 2013 Bakos et al. 2010 ExoFOP
Teff
(K)
4604.030+129.230-125.095
4500.5+240.5-122.0
 4595±80 4595±45 4600 --- 4502±188 4595±80 4604.0±127.2
Metallicity
(dex)
0.2110400±0.0887045 [M/H] --- 0.350±0.080 0.22±0.09 [Fe/H] --- 0.26±0.11 [Fe/H] 0.12±0.15 [Fe/H] 0.35±0.08 [Fe/H] ---
ρ✶
(g/cm3)
3.2982040+0.8410812-1.0428795
 --- --- 2.36±0.16 --- --- 2.27±0.18 --- ---
M✶
(M⦿)
0.7300000+0.0709188-0.1023460
 --- 0.756±0.028 0.742±0.042 --- 0.756±0.028 0.76±0.20 0.756±0.028 ---
R✶
(R⦿)
0.6782710+0.0665648-0.0398874
0.72539765+0.04098730-0.07172880
 0.694±0.021 0.6796±0.0054 --- --- 1.03±1.03 0.694±0.021 0.68±0.05
log g
(log10(cm/s2))
4.6385800+0.0803773-0.1143440
 --- --- 4.52±0.09 --- --- 4.32±0.60 4.63±0.02 4.64±0.10
Age
(Gyr)
--- ---
6.70+5.70-3.80
 --- 0.8 --- ---
6.7 +5.7-3.8
---
Sp. T
--- --- --- --- K3 V --- --- K3 ---
L✶
(log10(L⦿))
-0.7299459+0.0249290-0.0150379
-0.71110994+0.00183668-0.00184451
 --- --- --- --- ---
-0.721 +0.043-0.048
---
γ
(km/s)
--- -19.095091289315185±1.526377371440575 --- -18.08744±0.00070 --- --- --- -18.81±0.68 ---
v sin i
(km/s)
--- --- 2.10±0.50 1.85±0.27 --- --- --- 2.1±0.5 ---
Prot
(days)
--- --- --- 14.48±0.02 --- --- --- --- ---
Print
Status
Confirmed Planet
Detected By
Radial Velocity, Transit
Tools
Planetary Systems
Transit Prediction Service
TOI
Transit
Atmospheric Spectroscopy
Source Bakos et al. 2010 Kokori et al. 2023 Ivshina & Winn 2022 Kokori et al. 2022 Bonomo et al. 2017 Esposito et al. 2017 Deming et al. 2015 Salz et al. 2015 Knutson et al. 2014 ExoFOP
a/R✶
11.17±0.29 11.2±0.3 --- --- --- 11.36±0.25 --- --- --- ---
ω
(deg)
317±130 317.0±130.0 --- ---
324.2+12.0-8.9
 342.7±7.3
322.4+7.4-5.9
 ---
327+19-13
 ---
e
0.015±0.005 0.015±0.005 --- ---
0.0158+0.0023-0.0018
 0.0172±0.0016
0.0171+0.0018-0.0016
 0
0.0158+0.0041-0.0036
 ---
i
(deg)
86.8±0.2 86.8±0.2 --- --- 86.80±0.20 86.88±0.31 --- --- --- ---
P
(days)
2.875317±0.000004 2.87531773±0.00000011 2.87531738±0.00000071 2.87531693±0.00000024 2.87531860±0.00000020 2.875316938±0.000000190 2.8753187±0.0000018 2.9 --- 2.8753183±0.0000004
Rp/R✶
0.1284±0.0016 0.1284±0.0016 --- --- --- 0.155±0.010 --- --- --- ---
TC
(days)
2455080.92661±0.00021
(BJD-UTC)
2457959.120430±0.000056
(BJD-TDB)
2456233.92980±0.00016
(BJD-TDB)
2456705.48183±0.00007
(BJD-TDB)
2455598.48482±0.00032
(BJD-TDB)
--- --- --- --- 2460285.252669±0.000081
(BJD)
Teq
(K)
970±23 --- --- --- --- 964±10 1134±29 950 --- 846
S
(S⨁)
--- --- --- --- --- --- --- --- --- 85.1168
Rp
(R⨁)
9.718±0.370 --- --- --- 9.72±0.37 11.49±0.59 --- 9.75 --- 11.133100±0.873749
Rp
(RJup)
0.867±0.033 --- --- --- 0.867±0.033 1.025±0.053 --- 0.87 --- 0.99323037±0.07795080
δ
(%)
0.9898 --- --- --- --- --- --- --- --- 2.36760000±0.00534753
T14
(hours)
1.8480±0.0192 --- --- --- --- 1.896±0.012 --- --- --- 1.615±0.037
Tp
(days)
--- --- --- --- --- 2455942.681±0.016
(BJD)
--- --- --- ---
b
0.631 +0.025-0.028
 --- --- --- --- 0.622±0.059 --- --- --- ---
Mp
(M⨁)
2302.899±59.432 --- --- --- 2311±57 2295±114 --- 2320.1 2301±57 ---
Mp
(MJup)
7.246±0.187 --- --- --- 7.27±0.18 7.22±0.36 --- 7.3 7.24±0.18 ---
ρ
(g/cm3)
13.78±1.50 --- --- ---
13.8+1.7-1.5
 8.31±0.38 --- 13.8 --- ---
K
(m/s)
1246.0±8.1 --- --- ---
1249.7+4.2-4.1
 1249.5±1.2
1247.0+3.0-2.9
 ---
1245.4+6.1-6.3
 ---
a
(au)
0.0361±0.0005 --- --- ---
0.03617+0.00043-0.00045
 0.03593±0.00029 --- 0.036 --- ---
λ
(deg)
--- --- --- --- --- -8.0±6.9 --- --- --- ---
ψ
(deg)
--- --- --- --- ---
36 +10-12
 --- --- --- ---
Print
Literature Time Series (1 File Type, 1 File)
File Type Data Points Filter Reference
Radial Velocity Curve     10 Optical Spectra Bakos et al. 2010
Known Objects
1 Confirmed Planets
6 2MASS Point Source Catalog
Data Files
2 SuperWASP Time Series
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
  • Search
  • Browse
  • Download
NExScI Logo IPAC Logo Caltech Logo JPL Logo NASA Logo

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.