Key parameters at a glance
- A radius of 19.54 Earth radii
- A mass of 408.09 Earth masses
- Surface gravity around 1.07 g
- An orbital period of 1.710 days
- Semi-major axis 0.0301 AU
- Equilibrium temperature 1,970 K (1697 °C)
- Distance from Earth 815.78 light-years
- Earth Similarity Index 0.049
- Travel time at Voyager 1 speed 14,386,361 years
KELT-14 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#36of 1771
top 2.0%
This planet
19.54R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | KELT-14 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 19.54 | 11.21 |
| Mass (M⊕) | 1.00 | 408.09 | 317.83 |
| Density (g/cm³) | 5.51 | 0.32 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.07 | 2.53 |
| Insolation (S⊕) | 1.00 | 826.11 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 408.094 M⊕ | Direct mass measurement (not derived). |
| Minimum mass (M sin i) | 374.086 M⊕ | Lower bound from radial-velocity fitting. |
| Computed mass | 380.249 M⊕ | Model-computed mass (e.g. from mass-radius relation). |
Star Catalogue Identifiers
TIC
TIC 134537478
Gaia DR2
Gaia DR2 5560886336446650240
Gaia DR3
Gaia DR3 5560886336446650240
System
KELT-14
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 1.71 Earth days (0.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0301 AU.
Transit Fingerprint
Depth
1.386 %
Duration
2.188 h
Impact parameter b
0.862
Rp / R★
0.117700
Transit midpoint (BJD)
2,456,665.2240
Photometric dip
Transit produces a flux drop of 13,860 ppm lasting ≈ 2.19 h.
Extended Orbital Architecture
Planet / star radius ratio
0.117700
Semi-major axis / stellar radius
4.248
Impact parameter (b)
0.862
RV semi-amplitude (K)
185.100 m/s
Transit mid-time (BJD)
2,456,665.2240
Angular separation (arcsec)
0.12000
Eq. Temperature
1,970K
(1697 °C)
Insolation (S⊕)
826.11
Earth = 1.00
Earth Similarity (ESI)
0.049
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
Rodriguez et al. 2016Instrument
Apogee 4K CCD Sensor
Publication
2016-06
Observation locale
Ground
Discovery cohort
Planets confirmed in 2016 at KELT-South (2 shown).
Host System: KELT-14
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,720 K — cooler than the Sun (5,778 K)
Estimated Age
5.11 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
1.520 R☉
Stellar Mass
1.239 M☉
Metallicity [Fe/H]
0.32
Extended Stellar Properties
Surface gravity (log g)
4.166 dex
Stellar density
0.495 g/cm³
Systemic radial velocity
34.59 km/s
Rotational v·sin i
3.30 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 14 bands
Astrometric Data
Parallax
3.969 mas
Total Proper Motion
11.438 mas/yr
PM Right Ascension
-11.29 mas/yr
PM Declination
-1.86 mas/yr
Galactic Cartesian (pc)
x = -0.232 · y = 0.701 · z = -0.674
Equatorial (J2000)
RA 108.30141° · Dec -42.40976°
Galactic ℓ, b
253.630° · -14.194°
Ecliptic λ, β
121.732° · -63.846°
HTM-20 index
1207863522
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