HD 17156

Name	Orbital Separation	Planet Size	Method	Year	Reference	Disposition
HD 17156
HD 17156 b	21.22 d	12.26 R_⨁	Radial Velocity	2007	Fischer et al. 2007	Confirmed Planet

Exoplanet Archive Notes (1)

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HD 17156

Uncertainties for stellar mass, radius, and age in Table 1 have been re-scaled to 1-sigma. (Fischer et al. 2007)

HD 17156 Stellar Parameters (13 Solutions)

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RA: 02h49m44.79s

Dec: +71d45m11.12s

Distance: 78.0863+0.2397-0.2383
pc

Parallax: 12.777600±0.038901 mas

Ecliptic Latitude: 51.93437 deg

Ecliptic Longitude: 67.98451 deg

Galactic Latitude: 10.9937 deg

Galactic Longitude: 131.99027 deg

Total Proper Motion: 96.8491965±0.0634664 mas/yr

Proper Motion (RA): 90.9819000±0.0636486 mas/yr

Proper Motion (Dec): -33.1973000±0.0620804 mas/yr

Photometry: m_V
8.17±0.03; m_TESS
7.6353±0.0060; m_J
7.080±0.018; m_H
6.857±0.027; m_Ks
6.763±0.024; m_W1
6.796±0.069; m_W2
6.778±0.021; m_W3
6.794±0.015; m_W4
6.680±0.061; m_Gaia
8.03298±0.00035; m_B
8.780±0.026

Abundances (Hypatia Catalog): [Fe/H] 0.23±0.12 dex; [C/H] 0.24±0.06 dex; [O/H] 0.14±0.08 dex; [Na/H] 0.21±0.09 dex; [Mg/H] 0.21±0.07 dex; [Al/H] 0.24±0.07 dex; [Si/H] 0.20±0.05 dex; [Ca/H] 0.23±0.05 dex; [Y/H] 0.23±0.08 dex

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

Source	Kane et al. 2023	TICv8	Ment et al. 2018	Gaia DR2	Bonomo et al. 2017	Stassun et al. 2017	Mortier et al. 2013	Southworth 2011	Nutzman et al. 2011	Barbieri et al. 2009	Fischer et al. 2007	Cannon & Pickering 1918	ExoFOP
T_eff (K)	6046+76-72	5969.000+153.633-119.693	5969	5925.000+87.975-91.000	6079±80	6040±24	6084±29	6079±56	---	6100±75	6079±56	---	5925.0±89.5
L_✶ (log₁₀(L_⦿))	0.441+0.029-0.021	0.4395577+0.0080671-0.0187286	0.39±0.05	0.44237360+0.00194975-0.00195854	---	---	---	---	---	0.412 +0.057-0.065	0.415	---	---
v sin i (km/s)	---	---	---	---	2.80±0.50	---	---	---	---	1.5±0.7	2.6±0.5	---	---
Age (Gyr)	3.3+1.2-1.0	---	3.46±0.71	---	3.37+0.20-0.47	---	---	2.8+1.2-0.7	3.38 +0.20-0.47	2.8±1	5.7+0.7-1.0	---	---
ρ_✶ (g/cm³)	0.517+0.039-0.035	0.4155985+0.0842549-0.1044267	---	---	---	0.53±0.03	0.40±0.02	0.556±0.031	0.522 +0.021-0.018	0.59±0.06	---	---	---
M_✶ (M_⦿)	1.285+0.064-0.062	1.100000+0.155738-0.129783	1.23±0.21	---	1.275±0.018	1.41±0.12	1.19±0.08	1.297±0.070	1.275±0.018	1.24±0.03	1.20±0.05	---	---
R_✶ (R_⦿)	1.517+0.038-0.036	1.5510600+0.0581196-0.0993176	1.47±0.09	1.5792931+0.0496525-0.0458748	1.5007±0.0076	1.55±0.04	1.24±0.09	1.487±0.042	1.508±0.021	1.44±0.08	1.47+0.07-0.09	---	1.55±0.08
log g (log₁₀(cm/s²))	4.184±0.024	4.0982000+0.0911374-0.0712748	---	---	---	4.20±0.06	4.33±0.05	4.207±0.019	---	4.22±0.05	4.29±0.06	---	4.10±0.08
Metallicity (dex)	0.208±0.058 [Fe/H]	0.2±0.1 [M/H]	0.22 [Fe/H]	---	0.240±0.030	0.19 [Fe/H]	0.23±0.04 [Fe/H]	0.24±0.05 [Fe/H]	---	---	0.24±0.03 [Fe/H]	---	---
Sp. T	---	---	G5	---	---	---	---	---	---	---	G0 V	G5	---
P_rot (days)	---	---	---	---	---	---	---	---	---	---	12.8	---	---
γ (km/s)	---	---	---	-3.218943629868770±0.177353672874959	---	---	---	---	---	---	---	---	---

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HD 17156 b Planetary Parameters (11 Solutions)

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Status: Confirmed Planet

Detected By: Radial Velocity, Transit

Tools: Planetary Systems; TOI; Transit

Source	Kane et al. 2023	Kokori et al. 2023	Ivshina & Winn 2022	Ment et al. 2018	Bonomo et al. 2017	Stassun et al. 2017	Southworth 2011	Nutzman et al. 2011	Barbieri et al. 2009	Fischer et al. 2007	ExoFOP
a/R_✶	23.11+0.56-0.53	23.2±0.3	---	---	---	23.34±0.43	23.6855+0.4516-0.4351	23.19 +0.32-0.27	---	---	---
T_eq (K)	888+12-11	---	---	---	---	---	883±11	---	---	---	581
M_p (M_⨁)	1036±35	---	---	---	1028±10	1116±67	1037±36	1014.153±10.488	1023.37±25.43	---	---
M_p (M_Jup)	3.26±0.11	---	---	---	3.235±0.032	3.51±0.21	3.262±0.114	3.191±0.033	3.22±0.08	---	---
i (deg)	86.51+0.37-0.34	86.49+0.24-0.20	---	---	86.49+0.24-0.20	87.82±0.17	86.94±0.34	86.49 +0.24-0.20	87.89±0.11	---	---
P (days)	21.2164294±0.0000061	21.2164387±0.0000011	21.2164414±0.0000013	21.2167±0.0003	21.216398±0.000016	21.21663±0.00045	21.216398±0.000016	21.2163979±0.0000159	21.21663±0.00045	21.2±0.3	21.2164640±0.0000324
ρ (g/cm³)	3.08+0.26-0.23	---	---	---	3.123+0.066-0.063	---	3.35±0.27	---	3.78±0.06	---	---
R_p (R_⨁)	12.26+0.35-0.34	---	---	---	12.184±0.074	12.3±0.3	11.94±0.40	12.274±0.224	11.43±0.90	---	13.143100±0.688533
R_p (R_Jup)	1.094+0.031-0.030	---	---	---	1.0870±0.0066	1.10±0.03	1.065±0.036	1.095±0.020	1.02±0.08	---	1.1725509±0.0614269
K (m/s)	274.5+2.5-2.3	---	---	274.7±3.5	271.56+0.62-0.63	279.8±0.1	272.7±2.1	274.2±2.0	279.8±0.06	275±15	---
a (au)	0.1632±0.0027	---	---	0.1607±0.0091	0.16278±0.00076	---	0.1637±0.0029	---	0.1614±0.0022	0.15	---
T_p (days)	2458788.1332+0.0056-0.0055 (BJD-TDB)	---	---	2463759.802±0.039 (JD)	---	---	---	2454884.028170±0.000073 (HJD)	2454757.00787±0.000298 (BJD)	2453738.529±0.5	---
ω (deg)	122.06±0.37	121.7±0.4	---	121.51±0.32	121.32±0.20	---	---	121.71±0.43	121.9±0.23	121±11	---
M_p sin i (M_⨁)	1036±35	---	---	1004±133	---	---	---	---	---	991.59	---
M_p sin i (M_Jup)	3.26±0.11	---	---	3.16±0.42	---	---	---	---	---	3.12	---
e	0.6772+0.0045-0.0044	0.677±0.003	---	0.6753±0.0048	0.6703+0.0014-0.0013	0.68±0.00	---	0.6768±0.0034	0.6819±0.0044	0.67±0.08	---
T_C (days)	2458809.07037±0.00021 (BJD-TDB)	2455499.305815±0.000082 (BJD-TDB)	2454884.02903±0.00017 (BJD-TDB)	---	2454884.028940±0.000073 (BJD-TDB)	---	---	2454884.028170±0.000073 (HJD)	2454756.73134±0.00205 (BJD)	---	2460463.9529650±0.0008474 (BJD)
δ (%)	0.5493+0.0058-0.0059	---	---	---	---	0.5300±0.0087	---	---	---	---	0.6499000±0.0154155
R_p/R_✶	0.07412+0.00039-0.00040	0.0745±0.0003	---	---	---	---	---	0.07454±0.00035	0.0727±0.0006	---	---
T₁₄ (hours)	3.1505+0.0160-0.0150	---	---	---	---	---	---	3.1435±0.0059	3.21±0.08	---	3.045±0.254
λ (deg)	---	---	---	---	---	---	---	---	-4.8±5.3	---	---
b	0.484+0.035-0.041	---	---	---	---	---	---	0.477 +0.023-0.029	---	---	---
S (S_⨁)	68.8+3.9-3.2	---	---	---	---	---	---	---	---	---	18.9464

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Ancillary Information (35 Unique Files)

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+ HD 17156 (3 File Types, 35 Files)

Literature Time Series (3 File Types, 35 Files)

File Type	Data Points	Filter	Reference
Photometric Light Curve	1814	R (Generic)	Barbieri et al. 2009
Photometric Light Curve	605	R (Generic)	Barbieri et al. 2009
Photometric Light Curve	522	R (Generic)	Barbieri et al. 2009
Photometric Light Curve	437	R (Generic)	Barbieri et al. 2009
Photometric Light Curve	370	R (Generic)	Barbieri et al. 2009
Photometric Light Curve	269	R (Generic)	Barbieri et al. 2009
Photometric Light Curve	259	R (Generic)	Barbieri et al. 2009
Photometric Light Curve	216	R (Generic)	Barbieri et al. 2009
Photometric Light Curve	172	R (Generic)	Barbieri et al. 2009
Photometric Light Curve	115	R (Generic)	Barbieri et al. 2009
Photometric Light Curve	92	R (Generic)	Barbieri et al. 2009
Photometric Light Curve	80	R (Generic)	Barbieri et al. 2009
Photometric Light Curve	29	R (Generic)	Barbieri et al. 2009
Photometric Light Curve	1090	Unknown	Barbieri et al. 2009
Photometric Light Curve	890	Unknown	Barbieri et al. 2009
Photometric Light Curve	211	B (Generic)	Gillon et al. 2008
Photometric Light Curve	142	Hp (Hipparcos)	Hipparcos and Tycho Catalogs
Radial Velocity Curve	29	Optical Spectra	Barbieri et al. 2009
Radial Velocity Curve	34	Optical Spectra	Winn et al. 2009
Radial Velocity Curve	9	Optical Spectra	Winn et al. 2009
Radial Velocity Curve	18	Optical Spectra	Cochran et al. 2008
Radial Velocity Curve	13	Optical Spectra	Cochran et al. 2008
Radial Velocity Curve	25	Optical Spectra	Narita et al. 2008
Radial Velocity Curve	24	Optical Spectra	Fischer et al. 2007
Radial Velocity Curve	9	Optical Spectra	Fischer et al. 2007
Amateur Light Curve	1090	B (Generic)	Amateur-Contributed Light Curves
Amateur Light Curve	890	B (Generic)	Amateur-Contributed Light Curves
Amateur Light Curve	1291	Clear, no filter	Amateur-Contributed Light Curves
Amateur Light Curve	193	I (Generic)	Amateur-Contributed Light Curves
Amateur Light Curve	272	R (Generic)	Amateur-Contributed Light Curves
Amateur Light Curve	258	R (Generic)	Amateur-Contributed Light Curves
Amateur Light Curve	233	R (Generic)	Amateur-Contributed Light Curves
Amateur Light Curve	224	R (Generic)	Amateur-Contributed Light Curves
Amateur Light Curve	152	R (Generic)	Amateur-Contributed Light Curves
Amateur Light Curve	1005	V (Generic)	Amateur-Contributed Light Curves

Nearby Data (within 30 arcseconds) Browse Nearby Data

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Known Objects: 1 Confirmed Planets; 4 2MASS Point Source Catalog

Data Files: 1 Associated Literature Data

Bibliography (25 References)

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Revised Properties and Dynamical History for the HD 17156 System
Kane et al. 2023 Reference Overview
ExoClock Project. III. 450 New Exoplanet Ephemerides from Ground and Space Observations
Kokori et al. 2023 Reference Overview
TESS Transit Timing of Hundreds of Hot Jupiters
Ivshina & Winn 2022 Reference Overview
The Revised TESS Input Catalog and Candidate Target List
TICv8 Reference Overview
Radial Velocities from the N2K Project: Six New Cold Gas Giant Planets Orbiting HD 55696, HD 98736, HD 148164, HD 203473, and HD 211810
Ment et al. 2018 Reference Overview
Gaia Data Release 2
Gaia DR2 Reference Overview
ExoFOP TOI Table
ExoFOP
The GAPS Programme with HARPS-N at TNG . XIV. Investigating giant planet migration history via improved eccentricity and mass determination for 231 transiting planets
Bonomo et al. 2017 Reference Overview
Accurate Empirical Radii and Masses of Planets and Their Host Stars with Gaia Parallaxes
Stassun et al. 2017 Reference Overview
All WISE Data Release
Cutri et al. 2014 Reference Overview
New and updated stellar parameters for 90 transit hosts. The effect of the surface gravity
Mortier et al. 2013 Reference Overview
Homogeneous studies of transiting extrasolar planets - IV. Thirty systems with space-based light curves
Southworth 2011 Reference Overview
Precise Estimates of the Physical Parameters for the ExoplanetSystem HD 17156 Enabled by Hubble Space Telescope Fine GuidanceSensor Transit and Asteroseismic Observations
Nutzman et al. 2011 Reference Overview
Exoplanet Archive Help: Amateur Light Curves
Amateur-Contributed Light Curves
Characterization of the HD 17156 planetary system
Barbieri et al. 2009 Reference Overview
The Transit Light Curve Project. X. A Christmas Transit of HD 17156b
Winn et al. 2009 Reference Overview
The Spin-Orbit Alignment of the HD 17156 Transiting Eccentric Planetary System
Cochran et al. 2008 Reference Overview
Improved parameters for the transiting planet HD 17156b: a high-density giant planet with a very eccentric orbit
Gillon et al. 2008 Reference Overview
A Possible Spin-Orbit Misalignment in the Transiting EccentricPlanet HD 17156b
Narita et al. 2008 Reference Overview
Five Intermediate-Period Planets from the N2K Sample
Fischer et al. 2007 Reference Overview
2MASS All-Sky Catalog of Point Sources
2MASS Point Source Catalog Reference Overview
The Hipparcos and Tycho Photometric System Passbands
Tycho 2 converted using Bessell 2000 Reference Overview
The Tycho-2 catalog of the 2.5 million brightest stars
The Tycho-2 Catalog Reference Overview
The Hipparcos and Tycho Catalogs
Hipparcos and Tycho Catalogs Reference Overview
The Henry Draper catalogue 0h, 1h, 2h, and 3h
Cannon & Pickering 1918 Reference Overview

Legend

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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

Debug Info

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https://vmexoweb2.ipac.caltech.edu/data/Overviews_2.0/4/HD_17156.json

Catalog Parameters

RA

ra

02h49m44.79s

Dec

dec

+71d45m11.12s

β

elat

51.93437

λ

elon

67.98451

b

glat

10.9937

l

glon

131.99027

m_V

sy_vmag

8.17±0.03

m_TESS

sy_tmag

7.6353±0.0060

m_J

sy_jmag

7.080±0.018

m_H

sy_hmag

6.857±0.027

m_Ks

sy_kmag

6.763±0.024

sy_kepmag

no_data

m_W1

sy_w1mag

6.796±0.069

m_W2

sy_w2mag

6.778±0.021

m_W3

sy_w3mag

6.794±0.015

m_W4

sy_w4mag

6.680±0.061

sy_icmag

no_data

m_Gaia

sy_gaiamag

8.03298±0.00035

m_B

sy_bmag

8.780±0.026

sy_gmag

no_data

sy_imag

no_data

sy_rmag

no_data

sy_umag

no_data

sy_zmag

no_data

μ

sy_pm

96.8491965±0.0634664

μ_δ

sy_pmdec

-33.1973000±0.0620804

μ_α

sy_pmra

90.9819000±0.0636486

π

sy_plx

12.777600±0.038901

Distance

sy_dist

78.0863+0.2397-0.2383

Set Parameters

R_✶

st_rad

1.44±0.08

T_eff

st_teff

6100±75

HD 17156 Overview

HD 17156 Architecture & Discovery Information

HD 17156