TOI-2431 Overview

TOI-2431 0.68 R_⦿ 4079.00 K

TOI-2431 b

0.137 R_Jup

Overview Notes 1 Parameters Nearby Data Bibliography 3 Legend Expand All

TOI-2431 Architecture & Discovery Information

Name	Orbital Separation	Planet Size	Method	Year	Reference	Disposition
TOI-2431
TOI-2431 b	0.22 d	1.53 R_⨁	Transit	2026	Taș et al. 2026	Confirmed Planet

Exoplanet Archive Notes (1)

TOI-2431 b

Planet parameters drawn from Table 2, "FCO fit, adopted" solution in ref. (Taș et al. 2026)

TOI-2431 Stellar Parameters (3 Solutions)

RA: 02h31m03.67s

Dec: +08d22m53.85s

Distance: 36.0559+0.0594-0.0592
pc

Parallax: 27.7059000±0.0452671 mas

Ecliptic Latitude: -6.158 deg

Ecliptic Longitude: 38.12524 deg

Galactic Latitude: -47.0654 deg

Galactic Longitude: 160.64046 deg

Total Proper Motion: 384.5961768±0.0690392 mas/yr

Proper Motion (RA): 374.9530000±0.0693461 mas/yr

Proper Motion (Dec): -85.5831000±0.0628585 mas/yr

Photometry: m_V
10.90±0.03; m_TESS
9.5209±0.0061; m_J
8.356±0.023; m_H
7.729±0.051; m_Ks
7.554±0.023; m_Gaia
10.323400±0.000757; m_B
12.188±0.014

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

Source	Taș et al. 2026	TICv8	ExoFOP
T_eff (K)	4109+28-27	4079.0000+85.3861-166.5310	4079±126
R_✶ (R_⦿)	0.651±0.012	0.6764590+0.0875342-0.0451291	0.68±0.07
log g (log₁₀(cm/s²))	4.68±0.05	4.5837600+0.0955699-0.1303720	4.58±0.11
L_✶ (log₁₀(L_⦿))	-0.963+0.019-0.020	-0.9426074+0.0370876-0.0254980	---
ρ_✶ (g/cm³)	3.25±0.18	2.914886+0.980249-0.980211	---
M_✶ (M_⦿)	0.661+0.021-0.024	0.6400000+0.0846982-0.0714983	---
Metallicity (dex)	-0.020±0.130 [Fe/H]	---	---
v sin i (km/s)	<2	---	---
Age (Gyr)	2.00+9.10-1.70	---	---
Sp. T	K7 V	---	---

TOI-2431 b Planetary Parameters (2 Solutions)

Status: Confirmed Planet

Detected By: Radial Velocity, Transit

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

Source	Taș et al. 2026	ExoFOP
T_eq (K)	2063±30	1998
S (S_⨁)	---	2649.15
P (days)	0.22419578±0.00000005	0.2241950±0.0000004
R_p (R_⨁)	1.534+0.034-0.033	5.59553±1.95546
R_p (R_Jup)	0.1369+0.0030-0.0029	0.499201±0.174455
δ (%)	---	0.05400000±0.06362360
T₁₄ (hours)	---	0.292±0.026
T_C (days)	2460258.86855+0.00016-0.00015 (BJD)	2460258.8688690±0.0004664 (BJD)
b	0.573+0.031-0.033	---
ω (deg)	90	---
M_p (M_⨁)	6.2±1.6	---
M_p (M_Jup)	0.020±0.005	---
e	0	---
i (deg)	74.00+1.01-0.96	---
ρ (g/cm³)	9.40±2.50	---
R_p/R_✶	0.02131+0.00033-0.00032	---
K (m/s)	8.20±2.10	---
a (au)	0.0063±0.0001	---

Nearby Data (within 30 arcseconds) Browse Nearby Data

+

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

Data Files: 1 Associated Literature Data

Bibliography (3 References)

An Earth-sized planet on a 5.4 h orbit around a nearby K dwarf
Taș et al. 2026 Reference Overview
The Revised TESS Input Catalog and Candidate Target List
TICv8 Reference Overview
ExoFOP TOI Table
ExoFOP

System
Star
Confirmed
Candidate
False Positive Planet
Controversial
False Positive

Aliases
Data Access
Transit Prediction Service
Time Series
Kepler | K2

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