GJ 720 Overview

GJ 720 B 0.30 R_⦿ 3311.00 K

GJ 720 A 0.61 R_⦿ 3849.00 K

GJ 720 A b

Overview System Parameters Ancillary Nearby Data Legend

Architecture: GJ 720; GJ 720 B; GJ 720 A

Other Data: Bibliography 10; GJ 720 B Nearby Data 5; GJ 720 A Nearby Data 5

Discovery Data

Host	Planet	Method	Year	Reference	Disposition
GJ 720 A	GJ 720 A b	Radial Velocity	2021	González-Álvarez et al. 2021	Confirmed Planet

GJ 720 B Stellar Parameters (2 Solutions)

RA: 18h35m27.96s

Dec: +45d45m46.55s

Distance: 15.5489+0.0099-0.0098
pc

Parallax: 64.2842000±0.0405619 mas

Ecliptic Latitude: 68.67352 deg

Ecliptic Longitude: 287.19738 deg

Galactic Latitude: 21.71119 deg

Galactic Longitude: 74.42165 deg

Total Proper Motion: 582.0956888±0.0897901 mas/yr

Proper Motion (RA): 456.3220000±0.0862362 mas/yr

Proper Motion (Dec): 361.3940000±0.0951823 mas/yr

Photometry: m_V
13.026±0.008; m_TESS
10.4910000±0.0073603; m_J
8.886±0.043; m_H
8.314±0.017; m_Ks
8.075±0.020; m_Ic
---; m_Gaia
11.765600±0.000525; m_B
14.563±0.079

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

Source	González-Álvarez et al. 2021	TICv8
T_eff (K)	---	3311.0±157.0
L_✶ (log₁₀(L_⦿))	---	-2.01902+0.09720-0.12543
ρ_✶ (g/cm³)	---	14.674036±0.232067
M_✶ (M_⦿)	---	0.2735640±0.0201653
R_✶ (R_⦿)	---	0.2973210±0.0088856
log g (log₁₀(cm/s²))	---	4.9286800±0.0061055
Sp. T	M2.5 V	---

GJ 720 A Stellar Parameters (5 Solutions)

RA: 18h35m19.06s

Dec: +45d44m44.17s

Distance: 15.5575±0.0061 pc

Parallax: 64.2488000±0.0249522 mas

Ecliptic Latitude: 68.6608 deg

Ecliptic Longitude: 287.11923 deg

Galactic Latitude: 21.73083 deg

Galactic Longitude: 74.39563 deg

Total Proper Motion: 580.2814772±0.0520300 mas/yr

Proper Motion (RA): 452.1860000±0.0493673 mas/yr

Proper Motion (Dec): 363.6680000±0.0558976 mas/yr

Photometry: m_V
9.84±0.10; m_TESS
8.1351810±0.0073379; m_J
6.881±0.020; m_H
6.260±0.021; m_Ks
6.082±0.016; m_Ic
8.000±0.025; m_Gaia
9.104960±0.000491; m_B
11.163±0.073

Abundances (Hypatia Catalog): [Fe/H] 0.05±0.06 dex

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

Source	González-Álvarez et al. 2021	TICv8	Turnbull 2015	Hawley et al. 1996	Duncan et al. 1991
S Index	---	---	---	---	1.5344±0.2149
T_eff (K)	3837±69	3827.0±157.0	3849	---	---
L_✶ (log₁₀(L_⦿))	-1.2170±0.0964	-1.17328+0.08769-0.10999	-1.155 +0.234-0.544	---	---
M_✶ (M_⦿)	0.57±0.06	0.5792260±0.0201435	0.51	---	---
R_✶ (R_⦿)	0.56±0.06	0.5892470±0.0172714	0.61	---	---
Sp. T	M0.5 V	---	M2	M0	---
ρ_✶ (g/cm³)	---	3.991359±0.212457	---	---	---
log g (log₁₀(cm/s²))	4.71±0.05	4.6603200±0.0103571	---	---	---
Metallicity (dex)	-0.14±0.09 [Fe/H]	---	---	---	---
v sin i (km/s)	0.990±0.530	---	---	---	---
P_rot (days)	36.05+1.38-1.44	---	---	---	---

GJ 720 A b Planetary Parameters (1 Solutions)

Status: Confirmed Planet
Detected By: Radial Velocity

Tools

Source	González-Álvarez et al. 2021
T_p (days)	2456406.81+0.43-0.42
T_eq (K)	401±32
ω (deg)	110.22+23.97-24.28
M_p sin i (M_⨁)	13.64+0.78-0.79
M_p sin i (M_Jup)	0.04292+0.00245-0.00249
e	0.12+0.05-0.06
P (days)	19.466±0.005
K (m/s)	4.72±0.27
a (au)	0.119+0.002-0.001

Ancillary Information (1 Unique File)

+ GJ 720 A (1 File Type, 1 File)

Literature Time Series (1 File Type, 1 File)

File Type	Data Points	Filter	Reference
Photometric Light Curve	112	Hp (Hipparcos)	Hipparcos and Tycho Catalogs

GJ 720 B Nearby Data (5 Data Types within 30 arcseconds)

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

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

GJ 720 A Nearby Data (5 Data Types within 30 arcseconds)

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

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

Bibliography (10 References)

System

Star

Confirmed

Candidate

False Positive Planet

Controversial

False Positive

Aliases

Data Access

Transit Prediction Service

Time Series

Kepler | K2

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