Key parameters at a glance
- A radius of 13.60 Earth radii
- A mass of 450.24 Earth masses
- Surface gravity around 2.43 g
- An orbital period of 40.563 days
- Semi-major axis 0.2219 AU
- Distance from Earth 1,117.43 light-years
- Earth Similarity Index 0.337
- Travel time at Voyager 1 speed 19,705,820 years
- Almost certainly tidally locked to its host star given the close orbit
2 siblings around TOI-4504
TOI-4504 d shares its host star with 2 other confirmed planets. Side-by-side measurements below.
| Planet | Type | Radius (R⊕) | Mass (M⊕) | Period (d) | Eq. T (K) | Year |
|---|---|---|---|---|---|---|
| TOI-4504 b | Sub-Neptune | 2.69 | 7.71 | 2.426 | 1,234 | 2024 |
| TOI-4504 d this | Gas Giant | 13.60 | 450.24 | 40.563 | — | 2024 |
| TOI-4504 c | Gas Giant | 11.10 | 1,197.32 | 82.972 | 183 | 2024 |
TOI-4504 d Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#609of 1771
top 34.3%
This planet
13.60R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | TOI-4504 d | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 13.60 | 11.21 |
| Mass (M⊕) | 1.00 | 450.24 | 317.83 |
| Density (g/cm³) | 5.51 | 0.98 | 1.33 |
| Surface Gravity (g) | 1.00 | 2.43 | 2.53 |
| Insolation (S⊕) | 1.00 | — | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 450.236 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 349972412
Gaia DR2
Gaia DR2 5289275864525400704
Gaia DR3
Gaia DR3 5289275864525400704
System
TOI-4504
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 40.56 Earth days (11.1% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.2219 AU.
Extended Orbital Architecture
RV semi-amplitude (K)
90.837 m/s
Long. of periastron (ω)
98.30°
Sky-projected obliquity (λ)
9.89°
Angular separation (arcsec)
0.64800
Eq. Temperature
—
Insolation (S⊕)
—
Earth = 1.00
Earth Similarity (ESI)
0.337
0 = alien, 1 = Earth-identical
Insufficient insolation data. Close-orbiting tidally-locked around a cool host.
Discovery Paper
Primary reference
V & Iacute Tkov & Aacute et al. 2024Instrument
Multiple Instruments
Publication
2024-12
Observation locale
Ground
Discovery cohort
Planets confirmed in 2024 at Multiple Observatories (12 shown).
Host System: TOI-4504
Spectral Class
K-type orange
Effective Temperature
5,315 K — cooler than the Sun (5,778 K)
Estimated Age
10.00 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
0.920 R☉
Stellar Mass
0.890 M☉
Metallicity [Fe/H]
0.16
Extended Stellar Properties
Surface gravity (log g)
4.458 dex
Stellar density
1.607 g/cm³
Rotational v·sin i
1.90 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
2.890 mas
Total Proper Motion
12.007 mas/yr
PM Right Ascension
-8.66 mas/yr
PM Declination
-8.32 mas/yr
Galactic Cartesian (pc)
x = -0.194 · y = 0.426 · z = -0.884
Equatorial (J2000)
RA 114.46731° · Dec -62.07828°
Galactic ℓ, b
273.986° · -18.605°
Ecliptic λ, β
168.464° · -78.584°
HTM-20 index
892222422
Similar Worlds
HS Psc b
Gas Giant · K-type orange
Radius 13.60 R⊕ · 122.8 ly
HD 185283 b
Gas Giant · K-type orange
Radius 13.60 R⊕ · 102.4 ly
HD 331093 b
Gas Giant · K-type orange
Radius 13.60 R⊕ · 163.7 ly
HD 167042 b
Gas Giant · K-type orange
Radius 13.60 R⊕ · 162.0 ly
HD 10442 b
Gas Giant · K-type orange
Radius 13.60 R⊕ · 441.5 ly
HD 83443 c
Gas Giant · K-type orange
Radius 13.60 R⊕ · 133.4 ly