TOI-4438 Overview

TOI-4438 0.38 R_⦿ 3353.00 K

TOI-4438 b

0.225 R_Jup

Overview Parameters Nearby Data Bibliography 4 Legend Expand All

TOI-4438 Architecture & Discovery Information

Name	Orbital Separation	Planet Size	Method	Year	Reference	Disposition
TOI-4438
TOI-4438 b	7.45 d	2.52 R_⨁	Transit	2024	Goffo et al. 2024	Confirmed Planet

TOI-4438 Stellar Parameters (4 Solutions)

RA: 18h01m16.14s

Dec: +35d35m41.64s

Distance: 30.0346±0.0233 pc

Parallax: 33.2660000±0.0256476 mas

Ecliptic Latitude: 59.03363 deg

Ecliptic Longitude: 270.4975 deg

Galactic Latitude: 24.9965 deg

Galactic Longitude: 61.79465 deg

Total Proper Motion: 572.2108933±0.0490796 mas/yr

Proper Motion (RA): 29.1092000±0.0428259 mas/yr

Proper Motion (Dec): -571.4700000±0.0490948 mas/yr

Photometry: m_V
13.690±0.045; m_TESS
11.2695000±0.0073086; m_J
9.695±0.021; m_H
9.128±0.016; m_Ks
8.869±0.018; m_Gaia
12.519600±0.000337; m_B
15.220±0.121

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

Source	Peláez-Torres et al. 2024	Goffo et al. 2024	TICv8	ExoFOP
T_eff (K)	3353±157	3422±81	3353.0±157.0	3353±157
L_✶ (log₁₀(L_⦿))	-1.7935+0.0962-0.1238	-1.768+0.002-0.002	-1.79352+0.09617-0.12371	---
ρ_✶ (g/cm³)	---	10.1+1.7-1.4	9.664684±0.322123	---
M_✶ (M_⦿)	0.3640±0.0202	0.368±0.021	0.3639960±0.0201927	---
R_✶ (R_⦿)	0.376±0.011	0.372±0.018	0.3758590±0.0111301	0.375858992338181±0.011130100000000
log g (log₁₀(cm/s²))	>4.5	4.68±0.04	4.8491100±0.0016113	4.84911000±0.00161128
Metallicity (dex)	---	-0.19±0.05 [Fe/H]	---	---
γ (km/s)	---	-35.81±0.47	---	---
v sin i (km/s)	---	<2	---	---
Age (Gyr)	---	5.1±2.8	---	---
Sp. T	M	M3.5 V	---	---
P_rot (days)	---	68±6	---	---

TOI-4438 b Planetary Parameters (3 Solutions)

Status: Confirmed Planet

Detected By: Radial Velocity, Transit

Tools: Planetary Systems; Transit Prediction Service; TOI; Transit; Atmospheric Spectroscopy

Source	Goffo et al. 2024	Peláez-Torres et al. 2024	ExoFOP
T_eq (K)	435±15	435±15	392.843947064714
S (S_⨁)	6.00+0.90-0.77	---	5.62861139341486
P (days)	7.446280±0.000009	7.446300+0.000008-0.000009	7.44630337680409±0.00002302009300
R_p (R_⨁)	2.52±0.13	2.49±0.13	2.40486443504248±0.30863930000000
R_p (R_Jup)	0.225±0.012	0.222±0.012	0.214548003909265±0.027535001465387
δ (%)	---	---	0.404572417847442±0.012828719000000
T₁₄ (hours)	2.021+0.033-0.025	---	2.00331377616967±0.15890975000000
T_C (days)	2459396.41168±0.00065 (BJD-TDB)	2459396.4107±0.0006 (BJD)	2459396.40957800±0.00075457 (BJD)
b	0.39+0.16-0.24	0.25+0.19-0.18	---
ω (deg)	-70.0+36.0-32.0	---	---
M_p (M_⨁)	5.4±1.1	---	---
M_p (M_Jup)	0.017±0.003	---	---
e	0.14±0.09	---	---
i (deg)	89.34+0.39-0.21	89.51+0.36-0.44	---
ρ (g/cm³)	1.85+0.51-0.44	---	---
R_p/R_✶	0.062±0.001	0.0643+0.0052-0.0022	---
K (m/s)	3.50±0.72	---	---
a (au)	0.0534±0.0037	0.0511+0.0015-0.0037	---
a/R_✶	---	29.22+0.87-2.14	---

Nearby Data (within 30 arcseconds) Browse Nearby Data

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

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

Bibliography (4 References)

Validation of up to seven TESS planet candidates through multi-colour transit photometry using MuSCAT2 data
Peláez-Torres et al. 2024 Reference Overview
TOI-4438 b: a transiting mini-Neptune amenable to atmospheric characterization
Goffo et al. 2024 Reference Overview
The Revised TESS Input Catalog and Candidate Target List
TICv8 Reference Overview
ExoFOP TOI Table
ExoFOP

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_2.0/39/TOI-4438.json

TOI-4438

Catalog Parameters

18h01m16.14s

Dec

dec

+35d35m41.64s

elat

59.03363

elon

270.4975

glat

24.9965

glon

61.79465

m_V

sy_vmag

13.690±0.045

m_TESS

sy_tmag

11.2695000±0.0073086

m_J

sy_jmag

9.695±0.021

m_H

sy_hmag

9.128±0.016

m_Ks

sy_kmag

8.869±0.018

sy_kepmag

no_data

sy_w1mag

no_data

sy_w2mag

no_data

sy_w3mag

no_data

sy_w4mag

no_data

sy_icmag

no_data

m_Gaia

sy_gaiamag

12.519600±0.000337

m_B

sy_bmag

15.220±0.121

sy_gmag

no_data

sy_imag

no_data

sy_rmag

no_data

sy_umag

no_data

sy_zmag

no_data

sy_pm

572.2108933±0.0490796

μ_δ

sy_pmdec

-571.4700000±0.0490948

μ_α

sy_pmra

29.1092000±0.0428259

sy_plx

33.2660000±0.0256476

Distance

sy_dist

30.0346±0.0233

Set Parameters

R_✶

st_rad

0.3758590±0.0111301

T_eff

st_teff

3353.0±157.0