Key parameters at a glance
- A radius of 10.93 Earth radii
- A mass of 220.57 Earth masses
- Surface gravity around 1.85 g
- An orbital period of 14.256 days
- Semi-major axis 0.1170 AU
- Equilibrium temperature 786 K (513 °C)
- Distance from Earth 1,071.76 light-years
- Earth Similarity Index 0.195
- Travel time at Voyager 1 speed 18,900,516 years
1 sibling around TOI-1232
TOI-1232 b shares its host star with 1 other confirmed planet. Side-by-side measurements below.
| Planet | Type | Radius (R⊕) | Mass (M⊕) | Period (d) | Eq. T (K) | Year |
|---|---|---|---|---|---|---|
| TOI-1232 b this | Gas Giant | 10.93 | 220.57 | 14.256 | 786 | 2026 |
| TOI-1232 c | Neptune-like | 8.88 | 58.48 | 30.356 | — | 2026 |
TOI-1232 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#1669of 1771
top 94.2%
This planet
10.93R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | TOI-1232 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 10.93 | 11.21 |
| Mass (M⊕) | 1.00 | 220.57 | 317.83 |
| Density (g/cm³) | 5.51 | 0.93 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.85 | 2.53 |
| Insolation (S⊕) | 1.00 | 90.07 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 220.573 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 364395234
Gaia DR2
Gaia DR2 5289147737059634560
Gaia DR3
Gaia DR3 5289147737059634560
System
TOI-1232
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 14.26 Earth days (3.9% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1170 AU.
Transit Fingerprint
Depth
0.790 %
Duration
4.725 h
Rp / R★
0.091400
Transit midpoint (BJD)
2,458,544.0212
Photometric dip
Transit produces a flux drop of 7,900 ppm lasting ≈ 4.73 h.
Extended Orbital Architecture
Planet / star radius ratio
0.091400
Semi-major axis / stellar radius
20.000
RV semi-amplitude (K)
56.100 m/s
Transit mid-time (BJD)
2,458,544.0212
Long. of periastron (ω)
97.40°
Angular separation (arcsec)
0.35600
Eq. Temperature
786K
(513 °C)
Insolation (S⊕)
90.07
Earth = 1.00
Earth Similarity (ESI)
0.195
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water.
Detection Signatures
Transit photometry
A transit dip has been observed from at least one telescope.
Radial velocity
Stellar wobble has been measured spectroscopically.
Transit timing variations
Gravitational interactions from neighbours have been detected.
Discovery Paper
Primary reference
Mihaylov et al. 2026Instrument
TESS CCD Array
Publication
2026-03
Observation locale
Space
Discovery cohort
Planets confirmed in 2026 at Transiting Exoplanet Survey Satellite (TESS) (12 shown).
Host System: TOI-1232
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,823 K — hotter than the Sun (5,778 K)
Estimated Age
4.00 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
1.072 R☉
Stellar Mass
1.058 M☉
Metallicity [Fe/H]
0.18
Extended Stellar Properties
Surface gravity (log g)
4.403 dex
Stellar density
1.125 g/cm³
Rotational v·sin i
4.13 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
3.014 mas
Total Proper Motion
26.244 mas/yr
PM Right Ascension
-2.33 mas/yr
PM Declination
26.14 mas/yr
Galactic Cartesian (pc)
x = -0.210 · y = 0.422 · z = -0.882
Equatorial (J2000)
RA 116.50140° · Dec -61.87979°
Galactic ℓ, b
274.204° · -17.651°
Ecliptic λ, β
170.238° · -77.678°
HTM-20 index
138860185
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