TOI-2040 Overview

TOI-2040 0.92 R_⦿ 5019.00 K

TOI-2040 b

0.921 R_Jup

Overview Parameters Nearby Data Bibliography 3 Legend Expand All

TOI-2040 Architecture & Discovery Information

Name	Orbital Separation	Planet Size	Method	Year	Reference	Disposition
TOI-2040
TOI-2040 b	3.86 d	10.32 R_⨁	Transit	2026	Guenther et al. 2026	Confirmed Planet

TOI-2040 Stellar Parameters (3 Solutions)

RA: 23h29m05.94s

Dec: +71d30m23.31s

Distance: 144.717+0.494-0.490
pc

Parallax: 6.8811700±0.0233259 mas

Ecliptic Latitude: 62.50654 deg

Ecliptic Longitude: 47.08499 deg

Galactic Latitude: 9.68078 deg

Galactic Longitude: 116.43584 deg

Total Proper Motion: 51.5293696±0.0418532 mas/yr

Proper Motion (RA): 44.8526000±0.0421834 mas/yr

Proper Motion (Dec): 25.3677000±0.0408035 mas/yr

Photometry: m_V
11.489±0.022; m_TESS
10.8407±0.0060; m_J
10.059±0.022; m_H
9.664±0.029; m_Ks
9.570±0.026; m_W1
9.495±0.023; m_W2
9.573±0.020; m_W3
9.464±0.034; m_W4
9.213±0.445; m_Gaia
11.416600±0.000321; m_B
12.596±0.226

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

Source	Guenther et al. 2026	TICv8	ExoFOP
T_eff (K)	5132±129	5019.000+185.577-146.511	5019±166
L_✶ (log₁₀(L_⦿))	-0.22+0.08-0.06	-0.3123762+0.0358810-0.0222803	---
ρ_✶ (g/cm³)	1.96+0.13-0.12	1.494994+0.377578-0.402651	---
M_✶ (M_⦿)	0.92±0.03	0.834000+0.108234-0.101910	---
R_✶ (R_⦿)	0.87±0.02	0.9230610+0.0697618-0.0411528	0.92±0.06
log g (log₁₀(cm/s²))	4.515±0.019	4.4287700+0.0805871-0.0917245	4.43±0.09
Metallicity (dex)	0.300 [Fe/H]	---	---
γ (km/s)	-20.30±0.35	---	---
v sin i (km/s)	1.86±1.00	---	---
Age (Gyr)	8.70+2.80-3.20	---	---

TOI-2040 b Planetary Parameters (2 Solutions)

Status: Confirmed Planet

Detected By: Radial Velocity, Transit

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

Source	Guenther et al. 2026	ExoFOP
T_eq (K)	1070±29	995
b	0.298+0.074-0.108	---
S (S_⨁)	216+25-23	163.361
ω (deg)	11+14-15	---
M_p (M_⨁)	248±11	---
M_p (M_Jup)	0.781±0.036	---
e	0.109+0.021-0.020	---
i (deg)	88.48+0.54-0.36	---
P (days)	3.8608576+0.0000045-0.0000044	3.8608551±0.0000013
ρ (g/cm³)	1.24+0.11-0.10	---
R_p (R_⨁)	10.3±0.3	11.222400±0.679003
R_p (R_Jup)	0.921±0.023	1.0011972±0.0605767
R_p/R_✶	0.10756+0.00100-0.00099	---
K (m/s)	107.5+4.8-4.7	---
a (au)	0.04730±0.00150	---
δ (%)	1.1569+0.0215-0.0212	1.4670000000±0.0000625001
T₁₄ (hours)	2.657+0.016-0.015	2.571±0.030
T_C (days)	2459740.36547+0.00015-0.00016 (BJD-TDB)	2459740.3652610±0.0002599 (BJD)

Nearby Data (within 30 arcseconds) Browse Nearby Data

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

Data Files: 1 Associated Literature Data

Bibliography (3 References)

The Discovery of Five Hot Jupiters by TESS
Guenther 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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