TOI-4427 Overview

TOI-4427 0.89 R_⦿ 5328.00 K

TOI-4427 b

1.168 R_Jup

Overview Parameters Nearby Data Bibliography 3 Legend Expand All

TOI-4427 Architecture & Discovery Information

Name	Orbital Separation	Planet Size	Method	Year	Reference	Disposition
TOI-4427
TOI-4427 b	4.62 d	13.09 R_⨁	Transit	2026	Guenther et al. 2026	Confirmed Planet

TOI-4427 Stellar Parameters (3 Solutions)

RA: 09h00m11.82s

Dec: +72d08m51.89s

Distance: 198.251+0.930-0.921
pc

Parallax: 5.015260±0.023374 mas

Ecliptic Latitude: 51.92019 deg

Ecliptic Longitude: 110.59196 deg

Galactic Latitude: 35.40666 deg

Galactic Longitude: 141.49262 deg

Total Proper Motion: 42.5156550±0.0328741 mas/yr

Proper Motion (RA): 37.5260000±0.0320988 mas/yr

Proper Motion (Dec): -19.9845000±0.0354728 mas/yr

Photometry: m_V
11.983±0.069; m_TESS
11.3427±0.0060; m_J
10.624±0.020; m_H
10.237±0.018; m_Ks
10.163±0.015; m_W1
10.118±0.023; m_W2
10.183±0.021; m_W3
10.236±0.077; m_W4
8.617; m_Gaia
11.858500±0.000221; m_B
12.802±0.147

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

Source	Guenther et al. 2026	TICv8	ExoFOP
T_eff (K)	5347±135	5328.000+114.565-157.601	5328.000±136.083
L_✶ (log₁₀(L_⦿))	-0.17+0.03-0.03	-0.2410319+0.0114711-0.0145754	---
ρ_✶ (g/cm³)	2.01+0.32-0.64	1.842713+0.319905-0.542350	---
M_✶ (M_⦿)	0.90±0.03	0.91900000+0.12760600-0.09848150	---
R_✶ (R_⦿)	0.89±0.03	0.8892180+0.0592402-0.0436392	0.889217972755432±0.051439700000000
log g (log₁₀(cm/s²))	4.45+0.15-0.10	4.5033700+0.0586555-0.1050610	4.5033700±0.0818582
Metallicity (dex)	0.002 [Fe/H]	---	---
γ (km/s)	-16.65±0.46	---	---
v sin i (km/s)	0.0+2.0-0.0	---	---
Age (Gyr)	7.90±3.40	---	---

TOI-4427 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)	1040+46-50	964.847508941066
S (S_⨁)	195+36-35	204.812152275735
P (days)	4.6182621±0.0000017	4.61826314544925±0.00000295090800
R_p (R_⨁)	13.09±0.31	13.3976161718627±0.7774529500000
R_p (R_Jup)	1.168±0.028	1.19525731468720±0.06935982591174
δ (%)	1.86143353254+0.02360000000-0.02570000000	2.02876182680282±0.00993851600000
T₁₄ (hours)	2.655±0.014	2.70086372131813±0.01713552100000
T_C (days)	2459598.7129540±0.0001600 (BJD-TDB)	2459940.46421100±0.00036799 (BJD)
b	0.61884+0.01900-0.02100	---
ω (deg)	-75.0+167.0-52.0	---
M_p (M_⨁)	87.7+12.4-13.0	---
M_p (M_Jup)	0.276+0.039-0.041	---
e	0.0740+0.0770-0.0520	---
i (deg)	87.40+0.42-0.35	---
ρ (g/cm³)	0.214+0.036-0.034	---
R_p/R_✶	0.1073+0.0015-0.0014	---
K (m/s)	36.3+5.1-5.4	---
a (au)	0.05389+0.00520-0.00350	---

Nearby Data (within 30 arcseconds) Browse Nearby Data

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Known Objects: 1 Confirmed Planets; 1 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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