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TOI-789 Overview

  • Star: TOI-789
    • Stellar Radius: 0.37 Solar Radius
    • Stellar Effective Temperature: 3461.00 K
    • Planet: TOI-789 b
      • Disposition Confirmed
      • Planet Radius 0.105 Jupiter Radius
    • Planet: TOI-789 c
      • Disposition Confirmed
      • Planet Radius 0.103 Jupiter Radius
    • Planet: TOI-789 d
      • Disposition Confirmed
      • Planet Radius 0.125 Jupiter Radius
    • Planet: TOI-789.04
      • Disposition Candidate
      • Planet Radius 0.079 Jupiter Radius

TOI-789 Architecture & Discovery Information

Name Orbital Separation Planet Size Method Year Reference Disposition
TOI-789
TOI-789 b 5.45 d 1.18 R⨁ Transit 2026 Collier et al. 2026 Confirmed Planet
TOI-789 c 8.04 d 1.15 R⨁ Transit 2026 Pagés Navarrete 2026 Confirmed Planet
TOI-789 d 12.97 d 1.4 R⨁ Transit 2026 Pagés Navarrete 2026 Confirmed Planet
TOI-789.04 19.74 d 0.88 R⨁ Transit 2026 Pagés Navarrete 2026 Candidate Planet
TOI-789 b TOI-789 c TOI-789 d TOI-789.04
RA
07h41m04.85s
Dec
-71d18m13.55s
Distance
43.4070±0.0579 pc
Parallax
23.0089000±0.0305029 mas
Ecliptic Latitude
-79.85776 deg
Ecliptic Longitude
219.00142 deg
Galactic Latitude
-21.75317 deg
Galactic Longitude
283.23391 deg
Total Proper Motion
196.9022012±0.0633739 mas/yr
Proper Motion (RA)
129.6130000±0.0563228 mas/yr
Proper Motion (Dec)
148.2260000±0.0682759 mas/yr
Photometry
mV 14.230±0.026
mTESS 11.9802000±0.0073258
mJ 10.507±0.022
mH 9.954001±0.021000
mKs 9.704001±0.023000
mW1 9.568±0.023
mW2 9.419±0.020
mW3 9.309±0.023
mW4 9.471±0.322
mGaia 13.16430±0.00042
mB 15.775±0.013
Tools
Planetary Systems
ExoFOP Target Overview Page
IRSA Finding Chart
TOI
Stellar Hosts
Source Pagés Navarrete 2026 TICv8 ExoFOP ExoFOP ExoFOP
Teff
(K)
3471±64 3461.0±157.0 3471±64 3471±64 3471±64
L✶
(log10(L⦿))
---
-1.74942+0.09443-0.12083
 --- --- ---
ρ✶
(g/cm3)
10.1±0.9 9.888649±0.331597 --- --- ---
M✶
(M⦿)
0.358±0.009 0.3585790±0.0203116 --- --- ---
R✶
(R⦿)
0.371±0.011 0.3711400±0.0111606 0.371140003204346±0.011160600000000 0.371140003204346±0.011160600000000 0.371140003204346±0.011160600000000
log g
(log10(cm/s2))
4.85±0.03 4.8535800±0.0015005 4.877070±0.378264 4.877070±0.378264 4.877070±0.378264
Metallicity
(dex)
0.0±0.5 [Fe/H] --- --- --- ---
Sp. T
M3 V --- --- --- ---
Print
Status
Confirmed Planet
Detected By
Transit
Tools
Planetary Systems
Transit Prediction Service
TOI
Transit
Source Pagés Navarrete 2026 Collier et al. 2026 ExoFOP
Teq
(K)
448±11 --- 448.319881701765
S
(S⨁)
9.50±0.90 --- 9.54713355075766
P
(days)
5.4470340±0.0000050
5.4470318+0.0000045-0.0000058
 5.44706477562336±0.00000983348900
Rp
(R⨁)
1.18±0.05 1.08±0.05 1.12450643375442±0.79260610000000
Rp
(RJup)
0.105±0.004 0.0964±0.0045 0.100321917206479±0.070711701733950
δ
(%)
--- --- 0.0862258699738852±0.0063576244000000
T14
(hours)
--- --- 1.58330104654011±0.43707690000000
TC
(days)
2458329.1067±0.0013
(BJD)
2458329.10706+0.00154-0.00115
(BJD)
2458329.10454900±0.00109089
(BJD)
a/R✶
25.1±0.7
25.21+0.83-0.92
 ---
b
0.27±0.14 --- ---
Mp
(M⨁)
<3.7 --- ---
Mp
(MJup)
<0.012 --- ---
e
<0.05 0 ---
Rp/R✶
0.0265±0.0009 0.0266±0.0010 ---
a
(au)
0.043±0.001 --- ---
Print
Status
Confirmed Planet
Detected By
Transit
Tools
Planetary Systems
Transit Prediction Service
TOI
Transit
Source Pagés Navarrete 2026 ExoFOP
Teq
(K)
394±9 393.699870131119
S
(S⨁)
5.7±0.5 5.67782611305048
P
(days)
8.0432344±0.0000123 8.04323434410059±0.00001918060700
Rp
(R⨁)
1.15±0.05 1.28727812921615±0.12295525500000
Rp
(RJup)
0.103±0.004 0.114843460227936±0.010969352012534
δ
(%)
--- 0.087893022114544±0.007011529000000
T14
(hours)
--- 2.0067184684471±0.2376089000000
TC
(days)
2458329.9785±0.0031
(BJD)
2458329.97914500±0.00195184
(BJD)
a/R✶
32.6±0.9 ---
b
0.34±0.13 ---
Mp
(M⨁)
<3.0 ---
Mp
(MJup)
<0.0094 ---
e
<0.05 ---
Rp/R✶
0.0263±0.0009 ---
a
(au)
0.056±0.002 ---
Print
Status
Confirmed Planet
Detected By
Transit
Tools
Planetary Systems
Transit Prediction Service
TOI
Transit
Source Pagés Navarrete 2026 ExoFOP
Teq
(K)
336±8 335.728075963649
S
(S⨁)
3.0±0.3 3.00242140731818
P
(days)
12.9706890±0.0000153 12.9707041096505±0.0000253699750
Rp
(R⨁)
1.40±0.06 1.32803318116522±0.60951090000000
Rp
(RJup)
0.125±0.005 0.118479388689216±0.054377013959887
δ
(%)
--- 0.120878962479241±0.008692166000000
T14
(hours)
--- 2.26698080584711±0.47137478000000
TC
(days)
2458334.7672±0.0025
(BJD)
2458334.76780500±0.00174312
(BJD)
a/R✶
44.8±1.3 ---
b
0.24±0.14 ---
Mp
(M⨁)
<6.6 ---
Mp
(MJup)
<0.021 ---
e
<0.05 ---
Rp/R✶
0.0310±0.0011 ---
a
(au)
0.077±0.002 ---
Print
Status
Candidate Planet
Detected By
Transit
Tools
Transit Prediction Service
Source Pagés Navarrete 2026
a/R✶
58.8±1.7
Teq
(K)
292±7
b
0.71±0.15
S
(S⨁)
1.71±0.16
e
<0.05
P
(days)
19.74323±0.00013
Rp
(R⨁)
0.880+0.320-0.230
Rp
(RJup)
0.0785+0.0285-0.0205
Rp/R✶
0.0201±0.0039
a
(au)
0.102±0.003
TC
(days)
2458343.2215±0.0147
(BJD)
Print
Known Objects
3 Confirmed Planets
2 2MASS Point Source Catalog
Data Files
1 SuperWASP Time Series
3 Associated Literature Data
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