IPAC Logo
NASA
Exoplanet
Archive
A
service of
NASA
Exoplanet
Science
Institute

TOI-5811 Overview

  • Star: TOI-5811 Aa
    • Stellar Radius: 3.81 Solar Radius
    • Stellar Effective Temperature: 5608.00 K
    • Planet: TOI-5811.01
      • Disposition False Positive
      • Planet Radius 1.026 Jupiter Radius
  • Star: TOI-5811 B
    • Stellar Radius: 3.39 Solar Radius
    • Stellar Effective Temperature: 5101.00 K
    • Planet: TOI-5811 B b
      • Disposition Confirmed
      • Planet Radius 1.960 Jupiter Radius
  • Star: TOI-5811 Ab

TOI-5811 Architecture & Discovery Information

Name Orbital Separation Planet Size Method Year Reference Disposition
TOI-5811 Aa
TOI-5811.01 6.26 d 11.49 R⨁ Transit 2022 TESS Project False Positive Candidate
TOI-5811 B
TOI-5811 B b 6.26 d 21.97 R⨁ Transit 2026 Lillo-Box et al. 2026 Confirmed Planet
TOI-5811 Ab
TOI-5811 Aa TOI-5811.01
  • TOI-5811.01 originally thought to orbit TIC 331484419 (TOI-5811 A). Instead it orbits the gravitationally bound companion, TIC 331484427 (TOI-5811 B). (Lillo-Box et al. 2026)
  • Candidate planet now designated false positive. (Lillo-Box et al. 2026)
RA
20h43m38.86s
Dec
+19d43m40.58s
Distance
169.4940±1.3355 pc
Parallax
5.8715700±0.0461457 mas
Ecliptic Latitude
36.34622 deg
Ecliptic Longitude
319.93515 deg
Galactic Latitude
-13.88995 deg
Galactic Longitude
64.09009 deg
Total Proper Motion
32.382836±0.069605 mas/yr
Proper Motion (RA)
31.177400±0.069676 mas/yr
Proper Motion (Dec)
-8.7531610±0.0686945 mas/yr
Photometry
mV 7.85±0.03
mTESS 7.74689±0.00610
mJ 7.220±0.021
mH 6.993±0.023
mKs 6.974±0.020
mW1 ---
mW2 ---
mW3 ---
mW4 ---
mGaia 8.122030±0.000221
mB 8.522±0.020
Tools
Planetary Systems
ExoFOP Target Overview Page
IRSA Finding Chart
TOI
Stellar Hosts
Source TICv8 ExoFOP
Teff
(K)
5608.0±214.0 5608±214
R✶
(R⦿)
3.81488 3.81
Print
Status
False Positive Candidate
Detected By
Transit
Tools
Transit Prediction Service
TOI
Source ExoFOP
Teq
(K)
1655
S
(S⨁)
1247.98
P
(days)
6.2565600±0.0000276
Rp
(R⨁)
11.4949
Rp
(RJup)
1.02551
δ
(%)
0.08750000±0.00676513
T14
(hours)
3.509±0.884
TC
(days)
2460549.4110970±0.0021504
(BJD)
Print
RA
20h43m38.43s
Dec
+19d43m45.00s
Distance
170.135+1.527-1.501
pc
Parallax
5.8495300±0.0519149 mas
Ecliptic Latitude
36.34793 deg
Ecliptic Longitude
319.93368 deg
Galactic Latitude
-13.88788 deg
Galactic Longitude
64.0901 deg
Total Proper Motion
31.8067048±0.0651478 mas/yr
Proper Motion (RA)
30.3070000±0.0648933 mas/yr
Proper Motion (Dec)
-9.6515400±0.0676059 mas/yr
Photometry
mV 8.850±0.003
mTESS 8.30762±0.00610
mJ 7.514±0.029
mH 7.082±0.021
mKs 6.993±0.017
mW1 6.195±0.059
mW2 5.780±0.009
mW3 6.125±0.010
mW4 6.369±0.054
mGaia 8.871300±0.000395
mB 9.636±0.037
Tools
Planetary Systems
ExoFOP Target Overview Page
IRSA Finding Chart
Stellar Hosts
Source Lillo-Box et al. 2026 TICv8
Teff
(K)
4840±110 5101.0±122.0
R✶
(R⦿)
3.73±0.17 3.38951
L✶
(log10(L⦿))
0.8374+0.0039-0.0039
 ---
Metallicity
(dex)
-0.060±0.100 [Fe/H] ---
v sin i
(km/s)
<3 ---
M✶
(M⦿)
1.08±0.32 ---
log g
(log10(cm/s2))
3.33±0.12 ---
Sp. T
K2 IV+ ---
Print
Status
Confirmed Planet
Detected By
Radial Velocity, Transit
Tools
Planetary Systems
Transit Prediction Service
Transit
Source Lillo-Box et al. 2026
a/R✶
4.22±0.20
Teq
(K)
1530+50-54
b
0.9690+0.0091-0.0107
S
(S⨁)
1320±180
Mp
(M⨁)
257+35-32
Mp
(MJup)
0.81+0.11-0.10
i
(deg)
76.72+0.72-0.76
P
(days)
6.25663±0.00012
ρ
(g/cm3)
0.134+0.053-0.035
Rp
(R⨁)
22.0±2.0
Rp
(RJup)
1.96±0.18
Rp/R✶
0.0540±0.0046
K
(m/s)
71.8+2.4-2.5
a
(au)
0.0731+0.0048-0.0047
T14
(hours)
4.85+0.17-0.15
TC
(days)
2460549.422+0.013-0.014
(BJD)
Print
RA
---
Dec
---
Distance
---
Parallax
---
Ecliptic Latitude
---
Ecliptic Longitude
---
Galactic Latitude
---
Galactic Longitude
---
Total Proper Motion
---
Proper Motion (RA)
---
Proper Motion (Dec)
---
Photometry
mV ---
mTESS ---
mJ ---
mH ---
mKs ---
mW1 ---
mW2 ---
mW3 ---
mW4 ---
mGaia ---
mB ---
Tools
Planetary Systems
Stellar Hosts
Known Objects
1 Confirmed Planets
4 2MASS Point Source Catalog
Data Files
2 KELT Time Series
1 Associated Literature Data
Known Objects
1 Confirmed Planets
4 2MASS Point Source Catalog
Data Files
2 KELT Time Series
1 Associated Literature Data
Known Objects
1 Confirmed Planets
4 2MASS Point Source Catalog
Data Files
2 KELT Time Series
1 Associated Literature Data
  • System
  • Star
  • Confirmed
  • Candidate
  • False Positive Planet
  • Controversial
  • False Positive
  • Aliases
  • Data Access
  • Transit Prediction Service
  • Time Series
  • Kepler | K2
  • External Link
  • Search
  • Browse
  • Download

NASA Exoplanet Archive is operated by the California Institute of Technology, under contract with the National Aeronautics and Space Administration under the Exoplanet Exploration Program.