HD 38801 | NASA Exoplanet Archive

Name	Orbital Separation	Planet Size	Method	Year	Reference	Disposition
HD 38801
HD 38801 b	685.25 d	> 3082.32 M_⨁	Radial Velocity	2009	Harakawa et al. 2010	Confirmed Planet

HD 38801 Stellar Parameters (11 Solutions)

+

RA: 05h47m59.12s

Dec: -08d19m40.89s

Distance: 91.4349±0.3468 pc

Parallax: 10.9080000±0.0411738 mas

Ecliptic Latitude: -31.73087 deg

Ecliptic Longitude: 86.50125 deg

Galactic Latitude: -17.86346 deg

Galactic Longitude: 213.26791 deg

Total Proper Motion: 95.1686535±0.0706551 mas/yr

Proper Motion (RA): -57.7421000±0.0660109 mas/yr

Proper Motion (Dec): -75.6500000±0.0732251 mas/yr

Photometry: m_V
8.26±0.03; m_TESS
7.5043±0.0060; m_J
6.800±0.023; m_H
6.372±0.038; m_Ks
6.279±0.020; m_W1
6.279±0.088; m_W2
6.230±0.027; m_W3
6.278±0.016; m_W4
6.270±0.065; m_Gaia
8.03397±0.00036; m_B
9.104±0.000

Abundances (Hypatia Catalog): [Fe/H] 0.34±0.05 dex; [C/H] 0.16±0.09 dex; [O/H] 0.08±0.06 dex; [Na/H] 0.29±0.10 dex; [Mg/H] 0.23±0.04 dex; [Al/H] 0.23±0.06 dex; [Si/H] 0.23±0.06 dex; [Ca/H] 0.24±0.04 dex; [Y/H] 0.30±0.08 dex; [BaII/H] 0.12±0.19 dex

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

Source	TICv8	Luhn et al. 2019	Ment et al. 2018	Gaia DR2	Barbato et al. 2018	Stassun et al. 2017	Jofré et al. 2015	Mortier et al. 2013	Harakawa et al. 2010	Michigan Catalog, Vol. 5	Cannon & Pickering 1918
T_eff (K)	5207.0±25.0	5207	5207	5251.00+36.00-89.75	5338±59	5277±27	5277±27	5314±43	5222±44	---	---
L_✶ (log₁₀(L_⦿))	---	---	0.58±0.07	0.60598806+0.00237406-0.00238708	---	---	0.68±0.19	---	0.659+0.043-0.047	---	---
Metallicity (dex)	0.28±0.10 [M/H]	---	0.32 [Fe/H]	---	0.25±0.03 [Fe/H]	0.19 [Fe/H]	0.19±0.03 [Fe/H]	0.25±0.03 [Fe/H]	0.26±0.03 [Fe/H]	---	---
v sin i (km/s)	---	---	---	---	---	---	1.87±0.30	---	---	---	---
Age (Gyr)	---	---	4.87±0.96	---	6.072±1.835	---	5.45±2.04	---	4.67±2.56	---	---
M_✶ (M_⦿)	---	1.29	1.29±0.26	---	1.207±0.108	1.64±0.15	1.19±0.12	1.22±0.07	1.36±0.09	---	---
R_✶ (R_⦿)	2.47056	2.41	2.41±0.19	2.4275190+0.0851591-0.0329463	2.029±0.286	2.38±0.07	2.14±0.30	---	2.53±0.13	---	---
log g (log₁₀(cm/s²))	---	3.77	---	---	3.877±0.084	3.90±0.03	3.90±0.03	3.82±0.08	3.84±0.10	---	---
Sp. T	---	---	K0	---	---	---	---	---	---	G8 IV	K0
γ (km/s)	---	---	---	-25.096077958830502±0.148988742717212	---	---	---	---	---	---	---
P_rot (days)	---	---	---	---	47	---	---	---	---	---	---

Print

HD 38801 b Planetary Parameters (5 Solutions)

+

Status: Confirmed Planet

Detected By: Radial Velocity

Tools: Planetary Systems

Source	Barbato et al. 2018	Luhn et al. 2019	Ment et al. 2018	Stassun et al. 2017	Harakawa et al. 2010
T_p (days)	2456752.9+126.5-102.1 (BJD)	2453849±27 (JD)	2463976±20 (JD)	---	2453966.0±2.1
ω (deg)	97.1150+238.6140-71.9000	296±14	2.0±11.0	---	0.0
M_p sin i (M_⨁)	3082.3+182.1-186.6	3220±73	3178±445	3852±251	3400.64±158.908
M_p sin i (M_Jup)	9.6980+0.5730-0.5870	10.13±0.23	10.0±1.4	12.12±0.79	10.7±0.5
e	0.017+0.013-0.011	0.059±0.026	0.0572±0.0063	0.0	0.0
P (days)	685.25±0.85	686.8±1.4	687.14±0.46	696.29999±2.70000	696.3±2.7
a (au)	1.623+0.047-0.049	1.66±0.11	1.66±0.11	1.65±0.03	1.7±0.037
K (m/s)	197.29+3.52-3.43	196.3±3.8	194.4±1.8	200.0±3.9	---

Print

Ancillary Information (3 Unique Files)

+

+ HD 38801 (2 File Types, 3 Files)

Literature Time Series (2 File Types, 3 Files)

File Type	Data Points	Filter	Reference
Photometric Light Curve	113	Hp (Hipparcos)	Hipparcos and Tycho Catalogs
Radial Velocity Curve	11	Optical Spectra	Harakawa et al. 2010
Radial Velocity Curve	10	Optical Spectra	Harakawa et al. 2010

Nearby Data (within 30 arcseconds) Browse Nearby Data

+

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

Data Files: 4 KELT Time Series; 1 Associated Literature Data

Bibliography (16 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
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
Exploring the realm of scaled solar system analogues with HARPS
Barbato et al. 2018 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
Detection of a Low-eccentricity and Super-massive Planet to theSubgiant HD 38801
Harakawa et al. 2010 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
Michigan Catalog of two-dimensional spectral types for the HD stars, Vol 5
Michigan Catalog, Vol. 5 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

+

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

HD 38801 Overview

HD 38801 Architecture & Discovery Information