Key parameters at a glance
- A radius of 14.36 Earth radii
- A mass of 899.45 Earth masses
- Surface gravity around 4.36 g
- An orbital period of 3.377 days
- Semi-major axis 0.0506 AU
- Equilibrium temperature 1,802 K (1529 °C)
- Distance from Earth 988.27 light-years
- Earth Similarity Index 0.078
- Travel time at Voyager 1 speed 17,428,180 years
TOI-2152 A b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#295of 1771
top 16.6%
This planet
14.36R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | TOI-2152 A b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 14.36 | 11.21 |
| Mass (M⊕) | 1.00 | 899.45 | 317.83 |
| Density (g/cm³) | 5.51 | 1.67 | 1.33 |
| Surface Gravity (g) | 1.00 | 4.36 | 2.53 |
| Insolation (S⊕) | 1.00 | 2,195.79 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 899.454 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 395393265
Gaia DR2
Gaia DR2 562109759036198272
Gaia DR3
Gaia DR3 562109759036198272
System
TOI-2152
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 3.38 Earth days (0.9% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0506 AU.
Transit Fingerprint
Depth
0.666 %
Duration
3.715 h
Impact parameter b
0.415
Rp / R★
0.081600
Transit midpoint (BJD)
2,458,927.6498
Photometric dip
Transit produces a flux drop of 6,660 ppm lasting ≈ 3.72 h.
Extended Orbital Architecture
Planet / star radius ratio
0.081600
Semi-major axis / stellar radius
6.760
Impact parameter (b)
0.415
RV semi-amplitude (K)
291.000 m/s
Transit mid-time (BJD)
2,458,927.6498
Long. of periastron (ω)
96.00°
Angular separation (arcsec)
0.16700
Eq. Temperature
1,802K
(1529 °C)
Insolation (S⊕)
2,195.79
Earth = 1.00
Earth Similarity (ESI)
0.078
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.
Detection Signatures
Transit photometry
A transit dip has been observed from at least one telescope.
Radial velocity
Stellar wobble has been measured spectroscopically.
Discovery Paper
Primary reference
Rodriguez et al. 2023Instrument
TESS CCD Array
Publication
2023-02
Observation locale
Space
Discovery cohort
Planets confirmed in 2023 at Transiting Exoplanet Survey Satellite (TESS) (12 shown).
Host System: TOI-2152
Spectral Class
F-type yellow-white
Effective Temperature
6,630 K — hotter than the Sun (5,778 K)
Estimated Age
0.83 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
1.612 R☉
Stellar Mass
1.516 M☉
Metallicity [Fe/H]
0.28
Extended Stellar Properties
Surface gravity (log g)
4.205 dex
Stellar density
0.511 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
3.272 mas
Total Proper Motion
29.992 mas/yr
PM Right Ascension
27.64 mas/yr
PM Declination
-11.63 mas/yr
Galactic Cartesian (pc)
x = 0.190 · y = 0.094 · z = 0.977
Equatorial (J2000)
RA 26.33897° · Dec 77.79012°
Galactic ℓ, b
125.861° · 15.226°
Ecliptic λ, β
68.238° · 59.250°
HTM-20 index
1319627622
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