Key parameters at a glance
- A radius of 11.27 Earth radii
- A mass of 106.00 Earth masses
- Surface gravity around 0.83 g
- An orbital period of 22.343 days
- Semi-major axis 0.1684 AU
- Equilibrium temperature 806 K (533 °C)
- Distance from Earth 1,555.93 light-years
- Earth Similarity Index 0.159
- Travel time at Voyager 1 speed 27,438,890 years
3 siblings around KOI-94
KOI-94 d shares its host star with 3 other confirmed planets. Side-by-side measurements below.
KOI-94 d Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#1622of 1771
top 91.5%
This planet
11.27R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | KOI-94 d | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 11.27 | 11.21 |
| Mass (M⊕) | 1.00 | 106.00 | 317.83 |
| Density (g/cm³) | 5.51 | 0.36 | 1.33 |
| Surface Gravity (g) | 1.00 | 0.83 | 2.53 |
| Insolation (S⊕) | 1.00 | 97.12 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 106.000 M⊕ | Direct mass measurement (not derived). |
| Minimum mass (M sin i) | 79.602 M⊕ | Lower bound from radial-velocity fitting. |
Star Catalogue Identifiers
TIC
TIC 273231214
Gaia DR2
Gaia DR2 2076970047474270208
Gaia DR3
Gaia DR3 2076970047474270208
System
KOI-94
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 22.34 Earth days (6.1% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1684 AU.
Transit Fingerprint
Depth
0.561 %
Duration
6.686 h
Impact parameter b
0.055
Rp / R★
0.068016
Transit midpoint (BJD)
2,454,965.7405
Photometric dip
Transit produces a flux drop of 5,613 ppm lasting ≈ 6.69 h.
Extended Orbital Architecture
Planet / star radius ratio
0.068016
Semi-major axis / stellar radius
23.800
Impact parameter (b)
0.055
RV semi-amplitude (K)
18.300 m/s
Transit mid-time (BJD)
2,454,965.7405
Sky-projected obliquity (λ)
-11.00°
Angular separation (arcsec)
0.35300
Eq. Temperature
806K
(533 °C)
Insolation (S⊕)
97.12
Earth = 1.00
Earth Similarity (ESI)
0.159
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.
Transit timing variations
Gravitational interactions from neighbours have been detected.
Discovery Paper
Primary reference
Weiss et al. 2013Instrument
Kepler CCD Array
Publication
2013-05
Observation locale
Space
Discovery cohort
Planets confirmed in 2013 at Kepler (12 shown).
Host System: KOI-94
Spectral Class
F-type yellow-white
Effective Temperature
6,182 K — hotter than the Sun (5,778 K)
Estimated Age
3.16 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
1.520 R☉
Stellar Mass
1.277 M☉
Metallicity [Fe/H]
0.02
Extended Stellar Properties
Surface gravity (log g)
4.181 dex
Stellar density
0.771 g/cm³
Rotational v·sin i
7.30 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
2.068 mas
Total Proper Motion
2.394 mas/yr
PM Right Ascension
1.97 mas/yr
PM Declination
1.36 mas/yr
Galactic Cartesian (pc)
x = 0.342 · y = -0.661 · z = 0.668
Equatorial (J2000)
RA 297.33307° · Dec 41.89112°
Galactic ℓ, b
76.226° · 7.983°
Ecliptic λ, β
315.053° · 61.124°
HTM-20 index
-847074365
Similar Worlds
K2-290 c
Gas Giant · F-type yellow-white
Radius 11.28 R⊕ · 890.1 ly
KOI-351 h
Gas Giant · F-type yellow-white
Radius 11.25 R⊕ · 2,766.6 ly
TIC 172900988 b
Gas Giant · F-type yellow-white
Radius 11.25 R⊕ · 818.5 ly
CoRoT-3 b
Gas Giant · F-type yellow-white
Radius 11.32 R⊕ · 2,507.4 ly
K2-232 b
Gas Giant · F-type yellow-white
Radius 11.21 R⊕ · 426.4 ly
TOI-4406 b
Gas Giant · F-type yellow-white
Radius 11.21 R⊕ · 854.0 ly