GJ 3512 Overview

GJ 3512 0.14 R_⦿ 3384.00 K

GJ 3512 b

GJ 3512 c

Overview Notes 1 Parameters Nearby Data Bibliography 8 Legend Expand All

GJ 3512 Architecture & Discovery Information

Name	Orbital Separation	Planet Size	Method	Year	Reference	Disposition
GJ 3512
GJ 3512 b	203.11 d	> 146.52 M_⨁	Radial Velocity	2019	Morales et al. 2019	Confirmed Planet
GJ 3512 c	2354 d	> 143.98 M_⨁	Radial Velocity	2020	Lopez-Santiago et al. 2020	Confirmed Planet

Exoplanet Archive Notes (1)

GJ 3512

Stellar age value/uncertainties estimated from range given in ref. (Morales et al. 2019)

GJ 3512 Stellar Parameters (4 Solutions)

RA: 08h41m19.60s

Dec: +59d29m30.61s

Distance: 9.48637+0.00857-0.00856
pc

Parallax: 105.3860000±0.0944488 mas

Ecliptic Latitude: 39.53319 deg

Ecliptic Longitude: 115.21083 deg

Galactic Latitude: 36.96199 deg

Galactic Longitude: 157.24389 deg

Total Proper Motion: 1305.8410506±0.1252324 mas/yr

Proper Motion (RA): -260.421000±0.129256 mas/yr

Proper Motion (Dec): -1279.610000±0.125063 mas/yr

Photometry: m_V
15.18±0.20; m_TESS
11.5760000±0.0075394; m_J
9.615±0.023; m_H
8.996±0.028; m_Ks
8.668±0.021; m_Ic
11.470±0.025; m_Gaia
13.111700±0.000961

Abundances (Hypatia Catalog): [Fe/H] -0.03±0.04 dex; [Mg/H] -0.09±0.07 dex

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

Source	Morales et al. 2025	TICv8	Morales et al. 2019	Gaia DR2
T_eff (K)	3141±38	2902.0±157.0	3081±51	3384.0+216.3-89.0
L_✶ (log₁₀(L_⦿))	---	-2.8089+0.1066-0.1415	-2.80+0.01-0.01	---
Metallicity (dex)	-0.070±0.160 [Fe/H]	---	-0.070±0.160 [Fe/H]	---
Age (Gyr)	---	---	5.5±2.5	---
M_✶ (M_⦿)	0.123±0.009	0.1275630±0.0200287	0.123±0.009	---
R_✶ (R_⦿)	0.139±0.005	0.1558830±0.0046622	0.139±0.005	---
Sp. T	M5.5 V	---	M5.5 V	---
P_rot (days)	83	---	87±5	---
ρ_✶ (g/cm³)	---	47.4781564±3.2219888	---	---
log g (log₁₀(cm/s²))	---	5.1582000±0.0427719	---	---
v sin i (km/s)	<2	---	---	---

GJ 3512 b Planetary Parameters (3 Solutions)

Status: Confirmed Planet

Detected By: Radial Velocity

Tools: Planetary Systems

Source	Morales et al. 2025	Lopez-Santiago et al. 2020	Morales et al. 2019
ω (deg)	126.80+0.62-0.64	125.8+0.3-0.7	125.49+0.71-0.73
M_p sin i (M_⨁)	147±7	146+6-3	147+7-7
M_p sin i (M_Jup)	0.461±0.023	0.46+0.02-0.01	0.463+0.022-0.023
e	0.4279+0.0036-0.0035	0.44±0.01	0.4356±0.0042
P (days)	203.109+0.035-0.034	203.69+0.09-0.02	203.59±0.14
K (m/s)	71.28+0.32-0.31	71.8+0.2-0.1	71.84+0.34-0.36
a (au)	0.3376+0.0082-0.0084	0.337±0.001	0.3380+0.0080-0.0084
T_C (days)	2457739.51+0.22-0.20 (BJD)	---	---
T_p (days)	---	---	2457745.65±0.50 (BJD)

GJ 3512 c Planetary Parameters (2 Solutions)

Status: Confirmed Planet

Detected By: Radial Velocity

Tools: Planetary Systems

Source	Morales et al. 2025	Lopez-Santiago et al. 2020
ω (deg)	50±10	26+2-1
M_p sin i (M_⨁)	144±7	64±3
M_p sin i (M_Jup)	0.453±0.023	0.20±0.01
e	0.0890±0.0120	0.0183±0.0001
P (days)	2354+36-30	1599.6+1.1-0.8
K (m/s)	28.02+0.36-0.34	15.1±0.2
a (au)	1.731+0.043-0.046	1.292±0.003
T_C (days)	2457339.0+32.0-37.0 (BJD)	---

Nearby Data (within 30 arcseconds) Browse Nearby Data

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

Data Files: 1 SuperWASP Time Series; 2 Associated Literature Data

Bibliography (8 References)

The CARMENES search for exoplanets around M dwarfs: Revisiting the GJ 317, GJ463, and GJ 3512 systems and two newly discovered planets orbiting GJ9773 and GJ 508.2
Morales et al. 2025 Reference Overview
A Likely Magnetic Activity Cycle for the Exoplanet Host M Dwarf GJ 3512
Lopez-Santiago et al. 2020 Reference Overview
The Revised TESS Input Catalog and Candidate Target List
TICv8 Reference Overview
A giant exoplanet orbiting a very-low-mass star challenges planet formation models
Morales et al. 2019 Reference Overview
Gaia Data Release 2
Gaia DR2 Reference Overview
2MASS All-Sky Catalog of Point Sources
2MASS Point Source Catalog Reference Overview
Revised Coordinates and Proper Motions of the Stars in the Luyten Half-Second Catalog
Bakos et al. 2002 Reference Overview
Photometry of Stars with Large Proper Motion
Weis 1996 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
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Debug Info

https://vmexoweb2.ipac.caltech.edu/data/Overviews_2.0/7/GJ_3512.json

GJ 3512

Catalog Parameters

08h41m19.60s

Dec

dec

+59d29m30.61s

elat

39.53319

elon

115.21083

glat

36.96199

glon

157.24389

m_V

sy_vmag

15.18±0.20

m_TESS

sy_tmag

11.5760000±0.0075394

m_J

sy_jmag

9.615±0.023

m_H

sy_hmag

8.996±0.028

m_Ks

sy_kmag

8.668±0.021

sy_kepmag

no_data

sy_w1mag

no_data

sy_w2mag

no_data

sy_w3mag

no_data

sy_w4mag

no_data

m_Ic

sy_icmag

11.470±0.025

m_Gaia

sy_gaiamag

13.111700±0.000961

sy_bmag

no_data

sy_gmag

no_data

sy_imag

no_data

sy_rmag

no_data

sy_umag

no_data

sy_zmag

no_data

sy_pm

1305.8410506±0.1252324

μ_δ

sy_pmdec

-1279.610000±0.125063

μ_α

sy_pmra

-260.421000±0.129256

sy_plx

105.3860000±0.0944488

Distance

sy_dist

9.48637+0.00857-0.00856

Set Parameters

R_✶

st_rad

0.139±0.005

T_eff

st_teff

3384.0+216.3-89.0