TOI-5388 Overview

TOI-5388 0.31 R_⦿ 3495.00 K

TOI-5388.01

0.088 R_Jup

Overview Notes 1 Parameters Nearby Data Bibliography 4 Legend Expand All

TOI-5388 Architecture & Discovery Information

Name	Orbital Separation	Planet Size	Method	Year	Reference	Disposition
TOI-5388
TOI-5388.01	2.59 d	0.99 R_⨁	Transit	2024	Hord et al. 2024	Confirmed Planet

Exoplanet Archive Notes (1)

TOI-5388.01

Equilibrium temperature was calculated assuming a Bond albedo of 0.3. (Poultourtzidis et al. 2026)

TOI-5388 Stellar Parameters (4 Solutions)

RA: 10h08m42.36s

Dec: +35d32m51.21s

Distance: 18.52260±0.01665 pc

Parallax: 53.9592000±0.0481785 mas

Ecliptic Latitude: 22.47893 deg

Ecliptic Longitude: 141.14123 deg

Galactic Latitude: 54.51058 deg

Galactic Longitude: 188.93782 deg

Total Proper Motion: 234.0754407±0.0632573 mas/yr

Proper Motion (RA): 192.5360000±0.0654902 mas/yr

Proper Motion (Dec): 133.1210000±0.0583105 mas/yr

Photometry: m_V
12.728±0.064; m_TESS
10.5737000±0.0073077; m_J
9.167±0.018; m_H
8.618±0.029; m_Ks
8.319±0.021; m_W1
8.165±0.022; m_W2
8.031±0.020; m_W3
7.916±0.020; m_W4
7.764±0.189; m_Gaia
11.728400±0.000483; m_B
14.390±0.011

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

Source	Poultourtzidis et al. 2026	Hord et al. 2024	TICv8	ExoFOP
T_eff (K)	3440±85	3495.0	3495.0±157.0	3495±157
L_✶ (log₁₀(L_⦿))	-1.9454+0.0019-0.0020	---	-1.88047+0.09372-0.11968	---
ρ_✶ (g/cm³)	17±3	---	13.40333±0.27454	---
M_✶ (M_⦿)	0.292±0.018	0.285719766	0.2914860±0.0202015	---
R_✶ (R_⦿)	0.300±0.015	0.31	0.3129850±0.0093784	0.31±0.01
log g (log₁₀(cm/s²))	4.99±0.21	4.91164	4.9116400±0.0041128	4.91164000±0.00411282
Metallicity (dex)	-0.36±0.20 [Fe/H]	---	---	---
v sin i (km/s)	<2	---	---	---
Sp. T	M3.0 V	---	---	---

TOI-5388.01 Planetary Parameters (3 Solutions)

Status: Confirmed Planet

Detected By: Transit

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

Source	Poultourtzidis et al. 2026	Hord et al. 2024	ExoFOP
T_eq (K)	488+54-25	601.3533109	375
S (S_⨁)	---	3.30231	3.30231
P (days)	2.5946748+0.0000042-0.0000030	2.594675	2.5946750±0.0000092
R_p (R_⨁)	0.990+0.070-0.060	1.894260±0.558897	1.894260±0.558897
R_p (R_Jup)	0.0883+0.0062-0.0054	0.168811449±0.049807425	0.1689948±0.0498615
δ (%)	---	---	0.1070000±0.0260812
T₁₄ (hours)	---	0.313	0.313±0.218
T_C (days)	2459348.07817+0.00052-0.00055 (BJD-TDB)	---	2459630.8957480±0.0015028 (BJD)
a/R_✶	20.5+1.9-4.6	16.88903951	---
b	0.43+0.29-0.28	---	---
M_p (M_⨁)	<2.2	---	---
M_p (M_Jup)	<0.0069	---	---
i (deg)	88.8+0.8-1.4	---	---
ρ (g/cm³)	<11.9	---	---
R_p/R_✶	0.0305+0.0017-0.0010	0.055974261	---
K (m/s)	0.44+0.48-0.30	---	---
a (au)	---	0.024335855	---

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)

Characterization of two new transiting sub-Neptunes and a terrestrial planet around M-dwarf hosts
Poultourtzidis et al. 2026 Reference Overview
Identification of the Top TESS Objects of Interest for Atmospheric Characterization of Transiting Exoplanets with JWST
Hord 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

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Debug Info

https://vmexoweb2.ipac.caltech.edu/data/Overviews_2.0/39/TOI-5388.json

TOI-5388

Catalog Parameters

10h08m42.36s

Dec

dec

+35d32m51.21s

elat

22.47893

elon

141.14123

glat

54.51058

glon

188.93782

m_V

sy_vmag

12.728±0.064

m_TESS

sy_tmag

10.5737000±0.0073077

m_J

sy_jmag

9.167±0.018

m_H

sy_hmag

8.618±0.029

m_Ks

sy_kmag

8.319±0.021

sy_kepmag

no_data

m_W1

sy_w1mag

8.165±0.022

m_W2

sy_w2mag

8.031±0.020

m_W3

sy_w3mag

7.916±0.020

m_W4

sy_w4mag

7.764±0.189

sy_icmag

no_data

m_Gaia

sy_gaiamag

11.728400±0.000483

m_B

sy_bmag

14.390±0.011

sy_gmag

no_data

sy_imag

no_data

sy_rmag

no_data

sy_umag

no_data

sy_zmag

no_data

sy_pm

234.0754407±0.0632573

μ_δ

sy_pmdec

133.1210000±0.0583105

μ_α

sy_pmra

192.5360000±0.0654902

sy_plx

53.9592000±0.0481785

Distance

sy_dist

18.52260±0.01665

Set Parameters

R_✶

st_rad

0.3129850±0.0093784

T_eff

st_teff

3495.0±157.0