GJ 849

Name	Orbital Separation	Planet Size	Method	Year	Reference	Disposition
GJ 849
GJ 849 b	1925.31 d	> 283.82 M_⨁	Radial Velocity	2006	Butler et al. 2006	Confirmed Planet
GJ 849 c	5990 d	> 314.65 M_⨁	Radial Velocity	2014	Montet et al. 2014	Confirmed Planet

Exoplanet Archive Notes (1)

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GJ 849 c

Msini mass units changed from M_Earth to M_Jupiter. (Pinamonti et al. 2023)

GJ 849 Stellar Parameters (13 Solutions)

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RA: 22h09m41.52s

Dec: -04d38m26.99s

Distance: 8.800580±0.003615 pc

Parallax: 113.6000000±0.0463143 mas

Ecliptic Latitude: 6.27556 deg

Ecliptic Longitude: 332.72015 deg

Galactic Latitude: -45.40318 deg

Galactic Longitude: 55.89444 deg

Total Proper Motion: 1132.7461051±0.0811619 mas/yr

Proper Motion (RA): 1132.5300000±0.0811613 mas/yr

Proper Motion (Dec): -22.1255000±0.0826078 mas/yr

Photometry: m_V
10.41±0.10; m_TESS
8.021980±0.007385; m_J
6.510±0.024; m_H
5.899±0.044; m_Ks
5.594±0.017; m_W1
5.570±0.116; m_W2
5.183±0.064; m_W3
5.307±0.015; m_W4
5.177±0.036; m_Ic
7.870±0.008; m_Gaia
9.224500±0.000651; m_B
11.582±0.115

Abundances (Hypatia Catalog): [Fe/H] 0.04±0.18 dex; [C/H] 0.34±0.09 dex; [O/H] 0.18±0.09 dex; [Mg/H] 0.26±0.07 dex; [Si/H] 0.10±0.05 dex

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

Source	Pinamonti et al. 2023	Rosenthal et al. 2021	TICv8	Gaia DR2	Stassun et al. 2017	Turnbull 2015	Montet et al. 2014	Bonfils et al. 2013	Butler et al. 2006	Wright et al. 2004	Nidever et al. 2002	Hawley et al. 1996	Walker 1983
S Index	---	---	---	---	---	---	---	---	---	1.042±0.135	---	---	---
T_eff (K)	3467±68	3562.6792580500±30.5018743829	3407.0±157.0	3856.5325+225.4930-233.9820	3241±150	3343	---	---	---	---	---	---	---
Metallicity (dex)	0.090±0.090 [Fe/H]	0.39603023958200±0.06161336876375 [Fe/H]	---	---	0.24 [Fe/H]	---	0.22±0.17 [Fe/H]	---	0.16±0.2 [Fe/H]	---	---	---	---
M_✶ (M_⦿)	0.45±0.07	0.4958586505210000±0.0088135718362900	0.4612860±0.0201897	---	0.65±0.24	0.42	0.490±0.049	0.49	0.49±0.05	---	---	---	---
R_✶ (R_⦿)	0.45±0.07	0.46845750841300010±0.00682867310487500	0.4639120±0.0136633	---	0.53±0.05	0.55	---	---	---	---	---	---	---
log g (log₁₀(cm/s²))	4.80±0.07	4.7906277386800005±0.0088220593490750	4.7691700±0.0065689	---	4.80±0.14	---	---	---	---	---	---	---	---
L_✶ (log₁₀(L_⦿))	-1.59±0.13	---	-1.58295+0.09501-0.12178	---	---	-1.523 +0.637-0.368	---	-1.553	---	---	---	---	---
Sp. T	M3.5	---	---	---	---	M3	M3.5	M3 V	M3.5 V	---	---	M3.5	M3 V
γ (km/s)	---	---	---	---	---	---	---	---	---	---	-15.3	---	---
v sin i (km/s)	---	---	---	---	---	---	---	---	1.0±0.6	---	---	---	---
Age (Gyr)	---	---	---	---	---	---	---	---	>3	---	---	---	---
ρ_✶ (g/cm³)	---	---	6.5137218±0.2906188	---	---	---	---	---	---	---	---	---	---
CAII LOG RHK	-5.116±0.031	---	---	---	---	---	---	---	---	---	---	---	---
P_rot (days)	40.45+0.19-0.18	---	---	---	---	---	---	---	---	---	---	---	---

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GJ 849 b Planetary Parameters (7 Solutions)

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Status: Confirmed Planet

Detected By: Radial Velocity

Tools: Planetary Systems

Source	Pinamonti et al. 2023	Rosenthal et al. 2021	Stassun et al. 2017	Feng et al. 2015	Montet et al. 2014	Bonfils et al. 2013	Butler et al. 2006
ω (deg)	111+38-37	23+32-36	---	66±28	---	298±29	351±60
M_p sin i (M_⨁)	284+30-31	283±11	318±99	289.531±11.441	286+14-14	289.21	260.61
M_p sin i (M_Jup)	0.893+0.094-0.097	0.891±0.036	1.00±0.31	0.911±0.036	0.900+0.043-0.045	0.91	0.82
e	0.029±0.019	0.050+0.029-0.030	0.04±0.02	0.038±0.019	---	0.05±0.03	0.06±0.09
P (days)	1925.31±6.50	1940±12	1882.00000±250.00000	1924±15	1915+23-24	1845±15	1890±130
K (m/s)	24.85+0.61-0.63	23.21+0.88-0.89	22.0±4.0	23.96±0.94	---	24.4±0.7	22±2
a (au)	2.32+0.11-0.13	2.409+0.018-0.017	2.35±0.22	2.39±0.082	---	2.32	2.35
T_C (days)	2453906+12-11 (BJD)	2453873+21-24 (BJD)	---	---	---	---	---
T_p (days)	---	---	---	2453770±150	---	2454000±150	2451462±540

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GJ 849 c Planetary Parameters (3 Solutions)

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Status: Confirmed Planet

Detected By: Radial Velocity

Tools: Planetary Systems

Source	Pinamonti et al. 2023	Rosenthal et al. 2021	Montet et al. 2014
ω (deg)	143+25-23	-36+28-24	---
M_p sin i (M_⨁)	315±35	342.9±16.8	223.1+109.3-64.5
M_p sin i (M_Jup)	0.99±0.11	1.079±0.053	0.7020+0.3440-0.2030
e	0.0920+0.0380-0.0360	0.0990+0.0410-0.0400	---
P (days)	5990+110-100	5750+130-120	7068+6282-2166
K (m/s)	18.81+0.81-0.82	19.64+0.93-0.95	---
a (au)	4.95+0.25-0.28	4.974+0.083-0.074	---
T_C (days)	2453120+74-75 (BJD)	2458970+140-120 (BJD)	---

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Ancillary Information (2 Unique Files)

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+ GJ 849 (2 File Types, 2 Files)

Literature Time Series (2 File Types, 2 Files)

File Type	Data Points	Filter	Reference
Photometric Light Curve	50	Hp (Hipparcos)	Hipparcos and Tycho Catalogs
Radial Velocity Curve	29	Optical Spectra	Butler et al. 2006

Nearby Data (within 30 arcseconds) Browse Nearby Data

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

Data Files: 2 Associated Literature Data

Bibliography (20 References)

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The GAPS programme at TNG. XLVI. Deep search for low-mass planets in late-dwarf systems hosting cold Jupiters
Pinamonti et al. 2023 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
ExoCat-1: The Nearby Stellar Systems Catalog for Exoplanet Imaging Missions
Turnbull 2015 Reference Overview
The California Planet Survey IV: A Planet Orbiting the Giant Star HD 145934 and Updates to Seven Systems with Long-period Planets
Feng et al. 2015 Reference Overview
The TRENDS High-contrast Imaging Survey. IV. The Occurrence Rate of Giant Planets around M Dwarfs
Montet et al. 2014 Reference Overview
All WISE Data Release
Cutri et al. 2014 Reference Overview
The HARPS search for southern extra-solar planets XXXI. The M-dwarf sample
Bonfils et al. 2013 Reference Overview
A Long-Period Jupiter-Mass Planet Orbiting the Nearby M Dwarf GJ 849
Butler et al. 2006 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
Radial Velocities of 889 late-type stars
Nidever et al. 2002 Reference Overview
Revised Coordinates and Proper Motions of the Stars in the Luyten Half-Second Catalog
Bakos et al. 2002 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 Palomar/MSU nearby star spectroscopic survey. II. The southern M dwarfs and investigations of magnetic activity.
Hawley et al. 1996 Reference Overview
UBV(RI)_c photometry of faint nearby stars
Laing 1989 Reference Overview
A spectroscopic survey of 113 nearby red dwarf stars
Walker 1983 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
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Debug Info

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https://vmexoweb2.ipac.caltech.edu/data/Overviews_2.0/4/GJ_849.json

Catalog Parameters

RA

ra

22h09m41.52s

Dec

dec

-04d38m26.99s

β

elat

6.27556

λ

elon

332.72015

b

glat

-45.40318

l

glon

55.89444

m_V

sy_vmag

10.41±0.10

m_TESS

sy_tmag

8.021980±0.007385

m_J

sy_jmag

6.510±0.024

m_H

sy_hmag

5.899±0.044

m_Ks

sy_kmag

5.594±0.017

sy_kepmag

no_data

m_W1

sy_w1mag

5.570±0.116

m_W2

sy_w2mag

5.183±0.064

m_W3

sy_w3mag

5.307±0.015

m_W4

sy_w4mag

5.177±0.036

m_Ic

sy_icmag

7.870±0.008

m_Gaia

sy_gaiamag

9.224500±0.000651

m_B

sy_bmag

11.582±0.115

sy_gmag

no_data

sy_imag

no_data

sy_rmag

no_data

sy_umag

no_data

sy_zmag

no_data

μ

sy_pm

1132.7461051±0.0811619

μ_δ

sy_pmdec

-22.1255000±0.0826078

μ_α

sy_pmra

1132.5300000±0.0811613

π

sy_plx

113.6000000±0.0463143

Distance

sy_dist

8.800580±0.003615

Set Parameters

R_✶

st_rad

0.53±0.05

T_eff

st_teff

3241±150

GJ 849 Overview

GJ 849 Architecture & Discovery Information

GJ 849