HD 159868 Overview

HD 159868 2.03 R_⦿ 5558.00 K

HD 159868 c

HD 159868 b

Overview Parameters Ancillary 2 Nearby Data Bibliography 21 Legend Expand All

HD 159868 Architecture & Discovery Information

Name	Orbital Separation	Planet Size	Method	Year	Reference	Disposition
HD 159868
HD 159868 c	351 d	> 244.09 M_⨁	Radial Velocity	2012	Wittenmyer et al. 2012	Confirmed Planet
HD 159868 b	1184.1 d	> 704.95 M_⨁	Radial Velocity	2006	O'Toole et al. 2007	Confirmed Planet

HD 159868 Stellar Parameters (13 Solutions)

RA: 17h38m59.20s

Dec: -43d08m46.44s

Distance: 55.8503+0.1669-0.1660
pc

Parallax: 17.8763000±0.0529555 mas

Ecliptic Latitude: -19.78116 deg

Ecliptic Longitude: 265.92517 deg

Galactic Latitude: -6.31279 deg

Galactic Longitude: 347.17359 deg

Total Proper Motion: 285.0969850±0.0867686 mas/yr

Proper Motion (RA): -230.5100000±0.0901334 mas/yr

Proper Motion (Dec): -167.7660000±0.0800315 mas/yr

Photometry: m_V
7.24±0.03; m_TESS
6.5739±0.0060; m_J
5.941±0.021; m_H
5.567±0.026; m_Ks
5.535±0.024; m_W1
5.492±0.164; m_W2
5.346±0.053; m_W3
5.522±0.015; m_W4
5.473±0.040; m_Ic
6.479; m_Gaia
7.045790±0.000353; m_B
7.927±0.000

Abundances (Hypatia Catalog): [Fe/H] -0.04±0.14 dex; [C/H] -0.01±0.06 dex; [O/H] -0.11±0.12 dex; [Na/H] 0.02±0.17 dex; [Mg/H] 0.04±0.08 dex; [Al/H] 0.00±0.10 dex; [Si/H] -0.02±0.06 dex; [Ca/H] 0.04±0.06 dex; [Y/H] -0.02±0.08 dex; [BaII/H] 0.02±0.04 dex

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

Source	TICv8	Luhn et al. 2019	Gaia DR2	Stassun et al. 2017	Jofré et al. 2015	Mortier et al. 2013	Wittenmyer et al. 2012	Sousa et al. 2008	Valenti & Fischer 2005	Nordstrom et al. 2004	Henry et al. 1996	Michigan Catalog, Vol. 2	Cannon & Pickering 1918
S Index	---	---	---	---	---	---	---	---	---	---	0.148	---	---
CAII LOG RHK	---	---	---	---	---	---	---	---	---	---	-5.09	---	---
T_eff (K)	5534.0000+86.2941-133.3340	5534	5576.5+51.5-60.0	5566±20	5630±31	5558±15	5558±15	5558±15	---	---	---	---	---
Metallicity (dex)	-0.060±0.100 [M/H]	---	---	-0.05 [Fe/H]	0.02±0.03 [Fe/H]	-0.08±0.01 [Fe/H]	-0.08±0.01 [Fe/H]	-0.08±0.01 [Fe/H]	---	---	---	---	---
M_✶ (M_⦿)	0.9700000+0.1363460-0.1012280	1.19	---	1.42±0.12	1.08±0.04	1.16±0.04	1.087+0.032-0.033	0.919	---	---	---	---	---
log g (log₁₀(cm/s²))	3.7959600+0.0559813-0.0905000	3.92	---	4.00±0.03	4.08±0.07	3.96±0.02	3.99+0.05-0.04	3.96±0.02	---	---	---	---	---
L_✶ (log₁₀(L_⦿))	0.55573501+0.01135155-0.00820321	---	0.55549164+0.00174473-0.00175176	---	0.53±0.09	---	---	0.4877+0.0069-0.0070	---	---	---	---	---
γ (km/s)	---	---	-23.454182411692141±0.166277502910176	---	---	---	---	---	-23.8	-23.5±0.2	---	---	---
R_✶ (R_⦿)	2.0627300+0.1202700-0.0696794	2.13	2.0308368+0.0444169-0.0369968	1.97±0.04	1.78±0.10	---	---	---	---	---	---	---	---
v sin i (km/s)	---	---	---	---	0.96±0.23	---	---	---	2.1±0.5	1	---	---	---
Age (Gyr)	---	---	---	---	7.57±0.93	---	---	---	---	---	---	---	---
Sp. T	---	---	---	---	---	---	G5 V	---	---	---	---	G5 V	G5
ρ_✶ (g/cm³)	0.1558154+0.0275747-0.0342789	---	---	---	---	---	---	---	---	---	---	---	---

HD 159868 c Planetary Parameters (2 Solutions)

Status: Confirmed Planet

Detected By: Radial Velocity

Tools: Planetary Systems

Source	Luhn et al. 2019	Wittenmyer et al. 2012
T_p (days)	2453225±13 (JD)	2453239±21
ω (deg)	272±16	290±25
M_p sin i (M_⨁)	244±14	232.01±15.89
M_p sin i (M_Jup)	0.768±0.044	0.73±0.05
e	0.184±0.037	0.15±0.05
P (days)	351.0±1.1	352.3±1.3
K (m/s)	20.0±1.1	20.1±1.1
a (au)	1.032±0.064	1.00±0.01

HD 159868 b Planetary Parameters (4 Solutions)

Status: Confirmed Planet

Detected By: Radial Velocity

Tools: Planetary Systems

Source	Luhn et al. 2019	Stassun et al. 2017	Wittenmyer et al. 2012	O'Toole et al. 2007
M_p sin i (M_⨁)	704.9±18.8	798±51	667.41±34.96	540.288±95.345
M_p sin i (M_Jup)	2.218±0.059	2.51±0.16	2.10±0.11	1.700±0.300
e	0.024±0.019	0.01±0.02	0.01±0.03	0.690±0.020
P (days)	1184.1±7.1	1178.40002±8.80000	1178.4±8.8	986.000±9.000
K (m/s)	37.92±0.97	38.3±1.1	38.3±1.1	---
a (au)	2.32±0.14	2.30±0.04	2.25±0.03	2.00000±0.30000
T_p (days)	2453670±190 (JD)	---	2453435±56	2450700.00±9.00
ω (deg)	63.0±76.0	---	350±171	97.00±3.00

Ancillary Information (2 Unique Files)

+ HD 159868 (2 File Types, 2 Files)

Literature Time Series (2 File Types, 2 Files)

File Type	Data Points	Filter	Reference
Photometric Light Curve	49	Hp (Hipparcos)	Hipparcos and Tycho Catalogs
Radial Velocity Curve	28	Optical Spectra	O'Toole et al. 2007

Nearby Data (within 30 arcseconds) Browse Nearby Data

Known Objects: 2 Confirmed Planets; 9 2MASS Point Source Catalog

Data Files: 4 KELT Time Series; 2 Associated Literature Data

Bibliography (21 References)

The Revised TESS Input Catalog and Candidate Target List
TICv8 Reference Overview
Retired A Stars and Their Companions. VIII. 15 New Planetary Signals around Subgiants and Transit Parameters for California Planet Search Planets with Subgiant Hosts
Luhn et al. 2019 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
Stellar parameters and chemical abundances of 223 evolved stars with and without planets
Jofré et al. 2015 Reference Overview
All WISE Data Release
Cutri et al. 2014 Reference Overview
New and updated stellar parameters for 71 evolved planet hosts. On the metallicity-giant planet connection
Mortier et al. 2013 Reference Overview
The Anglo-Australian Planet Search. XXII. Two New Multi-planetSystems
Wittenmyer et al. 2012 Reference Overview
Spectroscopic parameters for 451 stars in the HARPS GTO planet search program. Stellar [Fe/H] and the frequency of exo-Neptunes
Sousa et al. 2008 Reference Overview
New Planets around Three G Dwarfs
O'Toole et al. 2007 Reference Overview
Spectroscopic Properties of Cool Stars (SPOCS). I. 1040 F, G, and K Dwarfs from Keck, Lick, and AAT Planet Search Programs
Valenti & Fischer 2005 Reference Overview
The Geneva-Copenhagen survey of the Solar neighbourhood. Ages,metallicities and kinematix properties of ~14 000 F and G dwarfs
Nordstrom et al. 2004 Reference Overview
2MASS All-Sky Catalog of Point Sources
2MASS Point Source Catalog Reference Overview
Yale Trigonometric Parallaxes, Fourth Edition (van Altena+ 1995)
van Altena et al. 2001 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
A Survey of Ca II H and K Chromospheric Emission in Southern Solar-Type Stars
Henry et al. 1996 Reference Overview
VRI photometry of southern stars.
Cousins 1980b Reference Overview
Michigan Catalog of two-dimensional spectral types for the HD stars, Vol 2
Michigan Catalog, Vol. 2 Reference Overview
The Henry Draper catalogue 0h, 1h, 2h, and 3h
Cannon & Pickering 1918 Reference Overview

Legend

System
Star
Confirmed
Candidate
False Positive Planet
Controversial
False Positive

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Kepler | K2

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