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TOI-1243 Overview

TOI-1243 0.49 R⦿ 3489.00 K
TOI-1243 b
0.208 RJup
Architecture
TOI-1243
TOI-1243
TOI-1243 b
Discovery Data
Host Planet Orbital Separation Planet Size Method Year Reference Disposition
TOI-1243 TOI-1243 b 4.66 d 2.33 R⨁ Transit 2026 Poultourtzidis et al. 2026 Confirmed Planet
TOI-1243 b
RA
09h02m55.83s
Dec
+71d38m11.10s
Distance
43.1865±0.0613 pc
Parallax
23.1265000±0.0326275 mas
Ecliptic Latitude
51.5626 deg
Ecliptic Longitude
111.27465 deg
Galactic Latitude
35.79962 deg
Galactic Longitude
141.97236 deg
Total Proper Motion
174.6840638±0.0458497 mas/yr
Proper Motion (RA)
-100.4040000±0.0399605 mas/yr
Proper Motion (Dec)
-142.9460000±0.0484924 mas/yr
Photometry
mV
13.427±0.037
mTESS
11.1966000±0.0073593
mJ
9.731±0.018
mH
9.093±0.017
mKs
8.878±0.016
mW1
8.719±0.023
mW2
8.648±0.020
mW3
8.546±0.024
mW4
8.937±0.419
mGaia
12.359000±0.000475
mB
14.923±0.100
Tools
Planetary Systems
ExoFOP Target Overview Page
IRSA Finding Chart
TOI
Stellar Hosts
Source Poultourtzidis et al. 2026 TICv8 ExoFOP Show Candidate Solutions >> << Hide Candidate Solutions
Teff
(K)
3515±79 3489.0±157.0 3489±157
L✶
(log10(L⦿))
-1.446+0.009-0.009
-1.49282+0.09342-0.11919
 ---
ρ✶
(g/cm3)
5.4±0.8 5.831606±0.273705 ---
M✶
(M⦿)
0.515±0.027 0.4888190±0.0201716 ---
R✶
(R⦿)
0.511±0.024 0.490729±0.014421 0.490729004144669±0.014421000000000
log g
(log10(cm/s2))
4.73±0.12 4.7455300±0.0076007 4.74553000±0.00760071
Metallicity
(dex)
-0.20±0.16 [Fe/H] --- ---
v sin i
(km/s)
<2 --- ---
Sp. T
M2.0 V --- ---
Print
Status
Confirmed Planet
Detected By
Radial Velocity, Transit
Tools
Planetary Systems
Transit Prediction Service
TOI
Transit
Source Poultourtzidis et al. 2026 ExoFOP Show Candidate Solutions >> << Hide Candidate Solutions
a/R✶
25.5+1.9-2.3
 ---
Teq
(K)
450+22-19
 519.900485452084
b
0.78±0.04 ---
Mp
(M⨁)
7.7±1.5 ---
Mp
(MJup)
0.024±0.005 ---
i
(deg)
88.24+0.20-0.28
 ---
P
(days)
4.6594779+0.0000042-0.0000045
 4.65951692268813±0.00000816240500
ρ
(g/cm3)
3.3±0.9 ---
Rp
(R⨁)
2.33±0.12 2.19615072748226±0.55820070000000
Rp
(RJup)
0.208±0.011 0.195927782040187±0.049799416640980
Rp/R✶
0.0418+0.0011-0.0008
 ---
K
(m/s)
4.6±0.9 ---
TC
(days)
2459369.83103+0.00028-0.00027
(BJD)
2459598.1431640±0.0019616
(BJD)
S
(S⨁)
--- 17.2664038094902
δ
(%)
--- 0.172517062589876±0.013773328000000
T14
(hours)
--- 0.901182068655105±0.190031540000000
Print
Known Objects
1 Confirmed Planets
2 2MASS Point Source Catalog
Data Files
1 Associated Literature Data
System
Star
Confirmed
Candidate
False Positive Planet
Controversial
False Positive
Aliases
Data Access
Transit Prediction Service
Time Series
Kepler | K2
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