Key parameters at a glance
- A radius of 12.87 Earth radii
- A mass of 227.00 Earth masses
- Surface gravity around 1.37 g
- An orbital period of 10.601 days
- Semi-major axis 0.0980 AU
- Equilibrium temperature 894 K (621 °C)
- Distance from Earth 978.11 light-years
- Earth Similarity Index 0.152
- Travel time at Voyager 1 speed 17,248,955 years
TOI-4914 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#1053of 1771
top 59.4%
This planet
12.87R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | TOI-4914 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 12.87 | 11.21 |
| Mass (M⊕) | 1.00 | 227.00 | 317.83 |
| Density (g/cm³) | 5.51 | 0.59 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.37 | 2.53 |
| Insolation (S⊕) | 1.00 | 18.11 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 227.000 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 49254857
Gaia DR2
Gaia DR2 6176542204376734592
Gaia DR3
Gaia DR3 6176542204376734592
System
TOI-4914
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 10.60 Earth days (2.9% of a terrestrial year) on a highly eccentric trajectory at a mean orbital distance of 0.0980 AU.
Transit Fingerprint
Depth
1.292 %
Duration
2.900 h
Impact parameter b
0.827
Rp / R★
0.118000
Transit midpoint (BJD)
2,459,317.2727
Photometric dip
Transit produces a flux drop of 12,920 ppm lasting ≈ 2.90 h.
Extended Orbital Architecture
Planet / star radius ratio
0.118000
Semi-major axis / stellar radius
20.980
Impact parameter (b)
0.827
RV semi-amplitude (K)
70.900 m/s
Transit mid-time (BJD)
2,459,317.2727
Long. of periastron (ω)
58.70°
Angular separation (arcsec)
0.32700
Eq. Temperature
894K
(621 °C)
Insolation (S⊕)
18.11
Earth = 1.00
Earth Similarity (ESI)
0.152
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.
Discovery Paper
Primary reference
Mantovan et al. 2024Instrument
TESS CCD Array
Publication
2024-09
Observation locale
Space
Discovery cohort
Planets confirmed in 2024 at Transiting Exoplanet Survey Satellite (TESS) (12 shown).
Host System: TOI-4914
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,805 K — hotter than the Sun (5,778 K)
Estimated Age
5.30 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
1.000 R☉
Stellar Mass
1.030 M☉
Metallicity [Fe/H]
-0.13
Extended Stellar Properties
Surface gravity (log g)
4.300 dex
Stellar density
1.551 g/cm³
Systemic radial velocity
11.99 km/s
Rotational v·sin i
2.40 km/s
Rotation period
25.70 days
Activity index (log R'HK)
-5.320
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
3.306 mas
Total Proper Motion
20.320 mas/yr
PM Right Ascension
-13.36 mas/yr
PM Declination
-15.31 mas/yr
Galactic Cartesian (pc)
x = -0.802 · y = -0.366 · z = -0.472
Equatorial (J2000)
RA 204.54267° · Dec -28.14292°
Galactic ℓ, b
315.311° · 33.603°
Ecliptic λ, β
213.135° · -16.682°
HTM-20 index
-421879417
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