GJ 393

Name	Orbital Separation	Planet Size	Method	Year	Reference	Disposition
GJ 393
GJ 393 b	7.03 d	> 1.71 M_⨁	Radial Velocity	2021	Amado et al. 2021	Confirmed Planet

GJ 393 Stellar Parameters (7 Solutions)

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RA: 10h28m54.93s

Dec: +00d50m16.25s

Distance: 7.031490±0.002485 pc

Parallax: 142.1880000±0.0499288 mas

Ecliptic Latitude: -8.07837 deg

Ecliptic Longitude: 158.61882 deg

Galactic Latitude: 46.88333 deg

Galactic Longitude: 244.47566 deg

Total Proper Motion: 948.4442122±0.0763903 mas/yr

Proper Motion (RA): -603.003000±0.084483 mas/yr

Proper Motion (Dec): -732.0750000±0.0703717 mas/yr

Photometry: m_V
9.65±0.10; m_TESS
7.5583900±0.0077604; m_J
6.176±0.021; m_H
5.605±0.033; m_Ks
5.311±0.023; m_Kep
8.771; m_Ic
7.412; m_Gaia
8.67373±0.00078; m_B
11.054±0.064; m_g
10.5111000±0.0004139; m_i
8.0154800±0.0002402; m_r
9.0690000±0.0003941; m_u
15.4777000±0.0089022; m_z
8.2555700±0.0009448

Abundances (Hypatia Catalog): [Fe/H] -0.08±0.03 dex; [Mg/H] -0.14±0.07 dex; [Si/H] -0.18±0.05 dex

Mission: K2 : Observed in Campaign 14

Tools: Planetary Systems; ExoFOP Target Overview Page; IRSA Finding Chart; K2 Targets; Stellar Hosts; K2 Time Series

Source	Amado et al. 2021	TICv8	Turnbull 2015	Wright et al. 2004	Nidever et al. 2002	Hawley et al. 1996	Duncan et al. 1991
S Index	---	---	---	1.004±0.131	---	---	1.0345
T_eff (K)	3579±51	3546.0±157.0	3545	---	---	---	---
L_✶ (log₁₀(L_⦿))	-1.571+0.009-0.009	-1.57337+0.09279-0.11816	-1.523 +0.637-0.368	---	---	---	---
M_✶ (M_⦿)	0.426±0.017	0.4281750±0.0203426	0.40	---	---	---	---
R_✶ (R_⦿)	0.426±0.013	0.4330010±0.0129681	0.44	---	---	---	---
Sp. T	M2.0 V	---	M2	---	---	M2	---
γ (km/s)	---	---	---	---	8.3	---	---
ρ_✶ (g/cm³)	---	7.435678±0.314907	---	---	---	---	---
log g (log₁₀(cm/s²))	4.88±0.07	4.7967100±0.0053726	---	---	---	---	---
Metallicity (dex)	-0.090±0.160 [Fe/H]	---	---	---	---	---	---
v sin i (km/s)	<2.0	---	---	---	---	---	---
P_rot (days)	34.15+0.22-0.21	---	---	---	---	---	---

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GJ 393 b Planetary Parameters (1 Solution)

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Status: Confirmed Planet

Detected By: Radial Velocity

Tools: Planetary Systems

Source	Amado et al. 2021
T_p (days)	2458002.72±0.21 (BJD)
T_eq (K)	485±11
S (S_⨁)	9.21±0.31
M_p sin i (M_⨁)	1.71±0.24
M_p sin i (M_Jup)	0.00538±0.00076
P (days)	7.02679+0.00082-0.00085
K (m/s)	1.01±0.14
a (au)	0.05402±0.00072

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Ancillary Information (1 Unique File)

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+ GJ 393 (1 File Type, 1 File)

Literature Time Series (1 File Type, 1 File)

File Type	Data Points	Filter	Reference
Photometric Light Curve	69	Hp (Hipparcos)	Hipparcos and Tycho Catalogs

Nearby Data (within 30 arcseconds) Browse Nearby Data

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Known Objects: 1 Confirmed Planets; 1 K2 Targets; 1 2MASS Point Source Catalog

Data Files: 1 K2 Time Series; 1 Associated Literature Data

Bibliography (14 References)

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The CARMENES search for exoplanets around M dwarfs. Two terrestrial planets orbiting G 264-012 and one terrestrial planet orbiting Gl 393
Amado et al. 2021 Reference Overview
The Revised TESS Input Catalog and Candidate Target List
TICv8 Reference Overview
The K2 Ecliptic Plane Input Catalog (EPIC) and Stellar Classifications of 138,600 Targets in Campaigns 1-8
EPIC Catalog Reference Overview
ExoCat-1: The Nearby Stellar Systems Catalog for Exoplanet Imaging Missions
Turnbull 2015 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
Yale Trigonometric Parallaxes, Fourth Edition (van Altena+ 1995)
van Altena et al. 2001 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
CA II H and K measurements made at Mount Wilson Observatory, 1966-1983
Duncan et al. 1991 Reference Overview
VRI photometry of nearby stars.
Cousins 1980a 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/GJ_393.json

Catalog Parameters

RA

ra

10h28m54.93s

Dec

dec

+00d50m16.25s

β

elat

-8.07837

λ

elon

158.61882

b

glat

46.88333

l

glon

244.47566

m_V

sy_vmag

9.65±0.10

m_TESS

sy_tmag

7.5583900±0.0077604

m_J

sy_jmag

6.176±0.021

m_H

sy_hmag

5.605±0.033

m_Ks

sy_kmag

5.311±0.023

m_Kep

sy_kepmag

8.771

sy_w1mag

no_data

sy_w2mag

no_data

sy_w3mag

no_data

sy_w4mag

no_data

m_Ic

sy_icmag

7.412

m_Gaia

sy_gaiamag

8.67373±0.00078

m_B

sy_bmag

11.054±0.064

m_g

sy_gmag

10.5111000±0.0004139

m_i

sy_imag

8.0154800±0.0002402

m_r

sy_rmag

9.0690000±0.0003941

m_u

sy_umag

15.4777000±0.0089022

m_z

sy_zmag

8.2555700±0.0009448

μ

sy_pm

948.4442122±0.0763903

μ_δ

sy_pmdec

-732.0750000±0.0703717

μ_α

sy_pmra

-603.003000±0.084483

π

sy_plx

142.1880000±0.0499288

Distance

sy_dist

7.031490±0.002485

Set Parameters

R_✶

st_rad

0.44

T_eff

st_teff

3545

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GJ 393