Key parameters at a glance
- A radius of 16.43 Earth radii
- A mass of 197.05 Earth masses
- Surface gravity around 0.73 g
- An orbital period of 3.901 days
- Semi-major axis 0.0505 AU
- Equilibrium temperature 1,596 K (1323 °C)
- Distance from Earth 1,271.73 light-years
- Earth Similarity Index 0.063
- Travel time at Voyager 1 speed 22,427,035 years
TOI-3023 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#135of 1771
top 7.6%
This planet
16.43R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | TOI-3023 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 16.43 | 11.21 |
| Mass (M⊕) | 1.00 | 197.05 | 317.83 |
| Density (g/cm³) | 5.51 | 0.25 | 1.33 |
| Surface Gravity (g) | 1.00 | 0.73 | 2.53 |
| Insolation (S⊕) | 1.00 | 1,084.00 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 197.054 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 454248975
Gaia DR2
Gaia DR2 5227928170880093568
Gaia DR3
Gaia DR3 5227928170880093568
System
TOI-3023
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 3.90 Earth days (1.1% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0505 AU.
Transit Fingerprint
Depth
0.815 %
Duration
4.961 h
Impact parameter b
0.130
Transit midpoint (BJD)
2,459,071.1922
Photometric dip
Transit produces a flux drop of 8,150 ppm lasting ≈ 4.96 h.
Extended Orbital Architecture
Semi-major axis / stellar radius
6.530
Impact parameter (b)
0.130
RV semi-amplitude (K)
74.000 m/s
Transit mid-time (BJD)
2,459,071.1922
Angular separation (arcsec)
0.13000
Eq. Temperature
1,596K
(1323 °C)
Insolation (S⊕)
1,084.00
Earth = 1.00
Earth Similarity (ESI)
0.063
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
Yee et al. 2023Instrument
TESS CCD Array
Publication
2023-03
Observation locale
Space
Discovery cohort
Planets confirmed in 2023 at Transiting Exoplanet Survey Satellite (TESS) (12 shown).
Host System: TOI-3023
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,760 K — cooler than the Sun (5,778 K)
Estimated Age
7.00 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
1.668 R☉
Stellar Mass
1.120 M☉
Metallicity [Fe/H]
0.09
Extended Stellar Properties
Surface gravity (log g)
4.048 dex
Stellar density
0.346 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
2.536 mas
Total Proper Motion
71.478 mas/yr
PM Right Ascension
-66.73 mas/yr
PM Declination
25.63 mas/yr
Galactic Cartesian (pc)
x = -0.293 · y = 0.077 · z = -0.953
Equatorial (J2000)
RA 165.31582° · Dec -72.35670°
Galactic ℓ, b
294.716° · -11.266°
Ecliptic λ, β
226.461° · -64.808°
HTM-20 index
1144312691
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