TOI-1173 Overview
-
Star:
TOI-1173
- Stellar Radius: 0.96 Solar Radius
- Stellar Effective Temperature: 5322.00 K
-
Planet:
TOI-1173 b
- Disposition Confirmed
- Planet Radius 0.783 Jupiter Radius
-
Star:
TOI-1173 B
- Stellar Radius: 0.84 Solar Radius
- Stellar Effective Temperature: 5007.00 K
TOI-1173 Architecture & Discovery Information
| Name | Orbital Separation | Planet Size | Method | Year | Reference | Disposition |
|---|---|---|---|---|---|---|
| TOI-1173 | ||||||
| TOI-1173 b | 7.06 d | 8.78 R⨁ | Transit | 2024 | Polanski et al. 2024 | Confirmed Planet |
| TOI-1173 B | ||||||
TOI-1173 b
- Planet also independently announced in this ref. (Galarza et al. 2024)
- Orbital eccentricity is a 2-sigma upper limit. (Yee & Vissapragada 2026)
- RA
- 13h10m43.94s
- Dec
- +70d46m04.84s
- Distance
-
132.353+0.461-0.458pc
- Parallax
- 7.5267100±0.0260286 mas
- Ecliptic Latitude
- 64.96901 deg
- Ecliptic Longitude
- 137.87474 deg
- Galactic Latitude
- 46.27411 deg
- Galactic Longitude
- 120.63534 deg
- Total Proper Motion
- 109.041186±0.045672 mas/yr
- Proper Motion (RA)
- 57.6509000±0.0548863 mas/yr
- Proper Motion (Dec)
- -92.5546000±0.0415505 mas/yr
- Photometry
- mV 11.038±0.009
- mTESS 10.2938±0.0060
- mJ 9.564±0.020
- mH 9.228±0.017
- mKs 9.134±0.015
- mW1 9.096±0.023
- mW2 9.157±0.020
- mW3 9.108±0.027
- mW4 9.145001±0.464000
- mGaia 10.804100±0.000359
- mB 11.727±0.130
| Source | Yee & Vissapragada 2026 | Galarza et al. 2024 | TICv8 | MacDougall et al. 2023 | ExoFOP | ||
|---|---|---|---|---|---|---|---|
|
Teff
(K)
|
--- | 5350±34 |
5322.000+105.045-142.358
|
5415+62-65
|
5429.6±292.5 | ||
|
L✶
(log10(L⦿))
|
--- | --- |
-0.1806353+0.0112927-0.0094548
|
-0.169+0.022-0.021
|
--- | ||
|
ρ✶
(g/cm3)
|
1.80+0.13-0.17
|
--- |
1.482446+0.407410-0.289210
|
1.6131+0.1051-0.1031
|
--- | ||
|
M✶
(M⦿)
|
--- |
0.911+0.028-0.030
|
0.91700000+0.15013500-0.08527570
|
0.9450+0.0311-0.0291
|
--- | ||
|
R✶
(R⦿)
|
--- | 0.934±0.011 |
0.95540000+0.05413820-0.05229900
|
0.9361+0.0153-0.0143
|
0.960±0.050 | ||
|
log g
(log10(cm/s2))
|
--- | 4.450±0.020 |
4.4400700+0.0813445-0.0870540
|
4.468±0.022 | 4.44±0.08 | ||
|
Metallicity
(dex)
|
--- | 0.139±0.065 [Fe/H] | --- |
0.191+0.061-0.060
[Fe/H]
|
--- | ||
|
Age
(Gyr)
|
--- |
8.70+2.00-1.90
|
--- | 5.9±2.4 | --- | ||
|
v sin i
(km/s)
|
--- | <2.0 | --- | --- | --- | ||
|
Sp. T
|
--- | G9 | --- | --- | --- |
- Status
- Confirmed Planet
- Detected By
- Radial Velocity, Transit
| Source | Yee & Vissapragada 2026 | Galarza et al. 2024 | Polanski et al. 2024 | ExoFOP | ||
|---|---|---|---|---|---|---|
|
Teq
(K)
|
--- | 868±11 |
868.950065858290+13.172581843056-13.210838407229
|
890 | ||
|
S
(S⨁)
|
--- | 132.0±10.0 | --- | 104.311 | ||
|
P
(days)
|
7.0643971±0.0000017 |
7.06466+0.00028-0.00029
|
7.0645600±0.0000025 | 7.0643978±0.0000019 | ||
|
Rp
(R⨁)
|
8.78+0.28-0.26
|
9.19±0.18 |
9.01941098437231+0.15845918931531-0.15041335779469
|
9.39131±0.52994 | ||
|
Rp
(RJup)
|
0.783+0.025-0.023
|
0.820±0.016 |
0.804659337523198+0.014136806330241-0.013419004084349
|
0.837838±0.047278 | ||
|
δ
(%)
|
--- | --- | --- | 0.8268000±0.0144082 | ||
|
T14
(hours)
|
--- |
2.586+0.041-0.039
|
2.56095979290369+0.01746030539329-0.01794828500689
|
2.424±0.183 | ||
|
TC
(days)
|
2459529.37849±0.00014
(BJD)
|
2458702.8444±0.0023
(BJD)
|
2458688.71523±0.00021
(BJD)
|
2460341.7843050±0.0002984
(BJD)
|
||
|
b
|
0.739+0.023-0.016
|
0.771+0.020-0.025
|
0.753119170924455+0.013556151474382-0.016401738135357
|
--- | ||
|
Mp
(M⨁)
|
28.3+1.0-1.0
|
27.4±1.7 |
28.3+4.1-4.0
|
--- | ||
|
Mp
(MJup)
|
0.0890+0.0033-0.0032
|
0.0862±0.0053 |
0.0890+0.0129-0.0126
|
--- | ||
|
e
|
<0.037 |
0.023+0.025-0.016
|
0 | --- | ||
|
ρ
(g/cm3)
|
0.230+0.019-0.026
|
0.195+0.018-0.017
|
0.21+0.04-0.05
|
--- | ||
|
Rp/R✶
|
0.0882+0.0017-0.0018
|
0.0900+0.0015-0.0013
|
0.0883357712409180+0.0005632525334458-0.0005891097517396
|
--- | ||
|
K
(m/s)
|
10.05+0.21-0.19
|
9.670+0.470-0.460
|
9.80±1.30 | --- | ||
|
ω
(deg)
|
--- | --- | 90 | --- | ||
|
a
(au)
|
--- | 0.0696±0.0014 | 0.071±0.001 | --- | ||
|
a/R✶
|
--- |
16.02+0.25-0.26
|
--- | --- | ||
|
i
(deg)
|
--- |
87.228+0.087-0.091
|
--- | --- |
- RA
- 13h10m27.86s
- Dec
- +70d45m30.13s
- Distance
-
131.875+0.476-0.471pc
- Parallax
- 7.5540700±0.0270204 mas
- Ecliptic Latitude
- 64.94495 deg
- Ecliptic Longitude
- 137.87192 deg
- Galactic Latitude
- 46.28607 deg
- Galactic Longitude
- 120.6656 deg
- Total Proper Motion
- 109.315938±0.046398 mas/yr
- Proper Motion (RA)
- 57.34600±0.05677 mas/yr
- Proper Motion (Dec)
- -93.0667000±0.0417912 mas/yr
- Photometry
- mV 11.222±0.040
- mTESS 10.8217±0.0060
- mJ 10.043±0.022
- mH 9.598±0.023
- mKs 9.495±0.020
- mW1 9.452±0.022
- mW2 9.514±0.020
- mW3 9.451±0.032
- mW4 9.156±0.422
- mGaia 11.390700±0.000302
- mB 12.780±0.199
| Source | Galarza et al. 2024 | TICv8 |
|---|---|---|
|
Teff
(K)
|
5047±34 |
5007.000+139.428-106.054
|
|
L✶
(log10(L⦿))
|
--- |
-0.3967649+0.0100904-0.0139871
|
|
ρ✶
(g/cm3)
|
--- |
1.965270+0.576096-0.394221
|
|
M✶
(M⦿)
|
0.839+0.033-0.036
|
0.8310000+0.0897431-0.1029700
|
|
R✶
(R⦿)
|
0.820+0.010-0.011
|
0.8416180+0.0395643-0.0633251
|
|
log g
(log10(cm/s2))
|
4.53±0.03 |
4.5074400+0.1007160-0.0695175
|
|
Metallicity
(dex)
|
0.114±0.069 [Fe/H] | --- |
|
v sin i
(km/s)
|
<2.0 | --- |
|
Age
(Gyr)
|
8.60+3.10-3.50
|
--- |
|
Sp. T
|
K1.5 | --- |
TOI-1173 Nearby Data (within 30 arcseconds) Browse Nearby Data
+
- Known Objects
- 1 Confirmed Planets
- 1 2MASS Point Source Catalog
- Data Files
- 1 Associated Literature Data
TOI-1173 B Nearby Data (within 30 arcseconds) Browse Nearby Data
+
- Known Objects
- 1 Confirmed Planets
- 1 2MASS Point Source Catalog
- Data Files
- 1 Associated Literature Data
-
"Popcorn Planets" Are Not Actively Inflated by Eccentricity Tides
Yee & Vissapragada 2026 Reference Overview -
TOI-1173 A b: The First Inflated Super-Neptune in a Wide Binary System
Galarza et al. 2024 Reference Overview -
The TESS-Keck Survey. XX. 15 New TESS Planets and a Uniform RV Analysis of All Survey Targets
Polanski et al. 2024 Reference Overview -
The TESS-Keck Survey. XV. Precise Properties of 108 TESS Planets and Their Host Stars
MacDougall et al. 2023 Reference Overview -
The Revised TESS Input Catalog and Candidate Target List
TICv8 Reference Overview -
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