HD 156279

Name	Orbital Separation	Planet Size	Method	Year	Reference	Disposition
HD 156279
HD 156279 b	133.4 d	> 2997.76 M_⨁	Radial Velocity	2011	Díaz et al. 2012	Confirmed Planet
HD 156279 c	4818.25 d	3098.83 M_⨁	Radial Velocity	2016	Bryan et al. 2016	Confirmed Planet

HD 156279 Stellar Parameters (10 Solutions)

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RA: 17h12m23.20s

Dec: +63d21m10.02s

Distance: 36.1945+0.0361-0.0359
pc

Parallax: 27.599500±0.027273 mas

Ecliptic Latitude: 84.04124 deg

Ecliptic Longitude: 206.98475 deg

Galactic Latitude: 35.08164 deg

Galactic Longitude: 93.08627 deg

Total Proper Motion: 160.2198147±0.0604401 mas/yr

Proper Motion (RA): -2.026370±0.049135 mas/yr

Proper Motion (Dec): 160.2070000±0.0604417 mas/yr

Photometry: m_V
8.07±0.03; m_TESS
7.3759±0.0060; m_J
6.677±0.018; m_H
6.346±0.026; m_Ks
6.269±0.023; m_W1
6.245±0.081; m_W2
6.252±0.028; m_W3
6.284±0.015; m_W4
6.229±0.036; m_Gaia
7.865690±0.000451; m_B
8.880±0.026

Abundances (Hypatia Catalog): [Fe/H] 0.10±0.04 dex; [C/H] 0.10±0.09 dex; [O/H] 0.02±0.09 dex; [Na/H] 0.06±0.04 dex; [Mg/H] 0.11±0.07 dex; [Al/H] 0.07±0.06 dex; [Si/H] 0.12±0.05 dex; [Ca/H] 0.13±0.06 dex; [Y/H] 0.12±0.02 dex; [BaII/H] -0.07±0.19 dex

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

Source	An et al. 2025	Feng et al. 2022	Rosenthal et al. 2021	TICv8	Gaia DR2	Stassun et al. 2017	Bryan et al. 2016	Diaz et al. 2012	Wright et al. 2004	Cannon & Pickering 1918
S Index	---	---	---	---	---	---	---	---	0.155±0.020	---
CAII LOG RHK	---	---	---	---	---	---	---	---	-5.06	---
T_eff (K)	---	---	5458.242806920000±84.228971017700	5420.0000+120.6830-82.4013	5487.000+92.000-103.333	5453±40	---	5453±40	---	---
Metallicity (dex)	---	---	0.19166574301000±0.05840563328435 [Fe/H]	0.13±0.10 [M/H]	---	0.14 [Fe/H]	---	0.14±0.01 [Fe/H]	---	---
γ (km/s)	---	---	---	---	-20.691183092974615±0.240064506764186	---	---	-20.6432±0.0050	---	---
v sin i (km/s)	---	---	---	---	---	---	---	2.51	---	---
Age (Gyr)	---	---	---	---	---	---	---	4.1+3.6-3.7	---	---
M_✶ (M_⦿)	0.9970+0.0470-0.0420	0.9400±0.1170	0.95981358844400±0.04740555793470	0.94000000+0.13723000-0.09637130	---	0.950±0.080	0.930±0.040	0.93±0.04	---	---
log g (log₁₀(cm/s²))	---	---	4.44951592783000±0.03309416906135	4.4456800+0.0562748-0.0877404	---	4.46±0.03	---	4.46±0.03	---	---
Sp. T	---	---	---	---	---	---	---	G6	---	K0
L_✶ (log₁₀(L_⦿))	---	---	---	-0.1437908+0.0088575-0.0090255	-0.14596498+0.00073301-0.00073425	---	---	---	---	---
R_✶ (R_⦿)	---	---	0.96611709153200±0.02177461684315	0.96107800+0.05881060-0.02476730	0.93540615+0.03625280-0.03059610	0.95±0.02	---	---	---	---
ρ_✶ (g/cm³)	---	---	---	1.4928510+0.3382822-0.2486750	---	---	---	---	---	---

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HD 156279 b Planetary Parameters (5 Solutions)

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Status: Confirmed Planet

Detected By: Astrometry, Radial Velocity

Tools: Planetary Systems

Source	Feng et al. 2022	An et al. 2025	Rosenthal et al. 2021	Stassun et al. 2017	Diaz et al. 2012
M_p sin i (M_⨁)	2997.8+242.2-254.6	3121±92	3019+99-102	3140±219	3086±210
M_p sin i (M_Jup)	9.4320+0.7620-0.8010	9.820±0.290	9.50+0.31-0.32	9.880±0.690	9.71±0.66
e	0.6470+0.0008-0.0007	0.64790+0.00070-0.00077	0.64779+0.00068-0.00066	0.71±0.02	0.708±0.018
P (days)	133.40355+0.00417-0.00405	133.402±0.004	133.4031+0.0037-0.0040	131.05000±0.54000	131.05±0.54
K (m/s)	509.454+0.627-0.612	---	509.95+0.55-0.57	578.0±20.0	578±20
a (au)	0.502+0.020-0.022	0.5126+0.0077-0.0078	0.5041+0.0082-0.0085	0.49±0.01	0.495±0.017
T_p (days)	2452724.507+0.087-0.090 (BJD)	---	---	---	2455525.59±0.18
ω (deg)	265.742+0.117-0.118	---	85.692±0.100	---	264.2±1.7
T_C (days)	---	---	2455464.94+0.12-0.13 (BJD)	---	---
i (deg)	---	87.0+32.0-28.0	---	---	---

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HD 156279 c Planetary Parameters (4 Solutions)

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Status: Confirmed Planet

Detected By: Astrometry, Radial Velocity

Tools: Planetary Systems

Source	Feng et al. 2022	An et al. 2025	Rosenthal et al. 2021	Bryan et al. 2016
M_p (M_⨁)	3098.8+419.2-192.3	3347+207-188	---	---
M_p (M_Jup)	9.7500+1.3190-0.6050	10.53+0.65-0.59	---	---
e	0.261±0.006	0.2602+0.0047-0.0048	0.2597+0.0050-0.0049	0.231+0.018-0.021
i (deg)	74.6990+36.9990-10.5330	110.9+6.9-9.4	---	---
P (days)	4818.25358+44.45769-43.09387	4782.2±29.6	4758+28-27	4191+270-310
a (au)	5.486+0.219-0.240	5.570+0.086-0.084	5.461+0.091-0.095	---
T_p (days)	2451076.760+55.128-54.613 (BJD)	---	---	2455912±17 (JD)
ω (deg)	98.3770+1.6360-1.5360	---	-79.18+0.97-1.00	101.0+2.3-1.9
K (m/s)	121.328+0.591-0.588	---	121.48+0.52-0.55	110.2+4.8-5.3
M_p sin i (M_⨁)	---	---	3003+99-102	2733+159-175
M_p sin i (M_Jup)	---	---	9.45+0.31-0.32	8.60+0.50-0.55
T_C (days)	---	---	2455834.7+3.1-3.2 (BJD)	---

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Ancillary Information (2 Unique Files)

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+ HD 156279 (2 File Types, 2 Files)

Literature Time Series (2 File Types, 2 Files)

File Type	Data Points	Filter	Reference
Photometric Light Curve	109	Hp (Hipparcos)	Hipparcos and Tycho Catalogs
Radial Velocity Curve	15	Optical Spectra	Díaz et al. 2012

Nearby Data (within 30 arcseconds) Browse Nearby Data

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

Data Files: 3 SuperWASP Time Series; 2 Associated Literature Data

Bibliography (15 References)

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Orbits and Masses for 156 Companions from Combined Astrometry and Radial Velocities, and a Validation of Gaia Non-single-star Solutions
An et al. 2025 Reference Overview
3D Selection of 167 Substellar Companions to Nearby Stars
Feng et al. 2022 Reference Overview
The California Legacy Survey. I. A Catalog of 178 Planets from Precision Radial Velocity Monitoring of 719 Nearby Stars over Three Decades
Rosenthal et al. 2021 Reference Overview
The Revised TESS Input Catalog and Candidate Target List
TICv8 Reference Overview
Gaia Data Release 2
Gaia DR2 Reference Overview
Accurate Empirical Radii and Masses of Planets and Their Host Stars with Gaia Parallaxes
Stassun et al. 2017 Reference Overview
Statistics of Long Period Gas Giant Planets in Known Planetary Systems
Bryan et al. 2016 Reference Overview
All WISE Data Release
Cutri et al. 2014 Reference Overview
The SOPHIE search for northern extrasolar planets. IV. Massivecompanions in the planet-brown dwarf boundary
Diaz et al. 2012 Reference Overview
Chromospheric Ca II Emission in Nearby F, G, K, and M Stars
Wright et al. 2004 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_156279.json

Catalog Parameters

RA

ra

17h12m23.20s

Dec

dec

+63d21m10.02s

β

elat

84.04124

λ

elon

206.98475

b

glat

35.08164

l

glon

93.08627

m_V

sy_vmag

8.07±0.03

m_TESS

sy_tmag

7.3759±0.0060

m_J

sy_jmag

6.677±0.018

m_H

sy_hmag

6.346±0.026

m_Ks

sy_kmag

6.269±0.023

sy_kepmag

no_data

m_W1

sy_w1mag

6.245±0.081

m_W2

sy_w2mag

6.252±0.028

m_W3

sy_w3mag

6.284±0.015

m_W4

sy_w4mag

6.229±0.036

sy_icmag

no_data

m_Gaia

sy_gaiamag

7.865690±0.000451

m_B

sy_bmag

8.880±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

160.2198147±0.0604401

μ_δ

sy_pmdec

160.2070000±0.0604417

μ_α

sy_pmra

-2.026370±0.049135

π

sy_plx

27.599500±0.027273

Distance

sy_dist

36.1945+0.0361-0.0359

Set Parameters

R_✶

st_rad

0.93540615+0.03625280-0.03059610

T_eff

st_teff

5453±40

HD 156279 Overview

HD 156279 Architecture & Discovery Information

HD 156279