Key parameters at a glance
- A radius of 11.50 Earth radii
- A mass of 4,049.13 Earth masses
- Surface gravity around 30.62 g
- An orbital period of 69.048 days
- Semi-major axis 0.3300 AU
- Equilibrium temperature 517 K (244 °C)
- Distance from Earth 826.43 light-years
- Earth Similarity Index 0.275
- Travel time at Voyager 1 speed 14,574,099 years
TIC 4672985 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#1590of 1771
top 89.7%
This planet
11.50R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | TIC 4672985 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 11.50 | 11.21 |
| Mass (M⊕) | 1.00 | 4,049.13 | 317.83 |
| Density (g/cm³) | 5.51 | 14.60 | 1.33 |
| Surface Gravity (g) | 1.00 | 30.62 | 2.53 |
| Insolation (S⊕) | 1.00 | — | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 4,049.134 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 4672985
Gaia DR2
Gaia DR2 5172202413314737152
Gaia DR3
Gaia DR3 5172202413314737152
System
TIC 4672985
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 69.05 Earth days (18.9% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.3300 AU.
Transit Fingerprint
Impact parameter b
0.900
Rp / R★
0.089000
Transit midpoint (BJD)
2,458,429.8577
Extended Orbital Architecture
Planet / star radius ratio
0.089000
Impact parameter (b)
0.900
RV semi-amplitude (K)
625.400 m/s
Transit mid-time (BJD)
2,458,429.8577
Long. of periastron (ω)
126.30°
Angular separation (arcsec)
1.30000
Eq. Temperature
517K
(244 °C)
Insolation (S⊕)
—
Earth = 1.00
Earth Similarity (ESI)
0.275
0 = alien, 1 = Earth-identical
Insufficient insolation data — 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.
Discovery Paper
Primary reference
Jones et al. 2024Instrument
TESS CCD Array
Publication
2024-03
Observation locale
Space
Discovery cohort
Planets confirmed in 2024 at Transiting Exoplanet Survey Satellite (TESS) (12 shown).
Host System: TIC 4672985
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,757 K — cooler than the Sun (5,778 K)
Estimated Age
7.71 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
1.150 R☉
Stellar Mass
1.010 M☉
Metallicity [Fe/H]
0.14
Extended Stellar Properties
Surface gravity (log g)
4.320 dex
Stellar density
0.939 g/cm³
Rotational v·sin i
3.50 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
3.918 mas
Total Proper Motion
51.355 mas/yr
PM Right Ascension
43.22 mas/yr
PM Declination
-27.74 mas/yr
Galactic Cartesian (pc)
x = 0.769 · y = 0.611 · z = -0.185
Equatorial (J2000)
RA 38.47068° · Dec -10.65738°
Galactic ℓ, b
183.518° · -60.813°
Ecliptic λ, β
32.347° · -24.385°
HTM-20 index
705244615
Similar Worlds
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Gas Giant · G-type yellow (Sun-like)
Radius 11.43 R⊕ · 1,358.3 ly