Key parameters at a glance
- A radius of 1.94 Earth radii
- A mass of 4.42 Earth masses
- Surface gravity around 1.17 g
- An orbital period of 15.363 days
- Semi-major axis 0.1126 AU
- Equilibrium temperature 608 K (335 °C)
- Distance from Earth 2,015.64 light-years
- Earth Similarity Index 0.455
- Travel time at Voyager 1 speed 35,545,881 years
- Almost certainly tidally locked to its host star given the close orbit
Kepler-1384 b Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#79of 1176
top 6.6%
This planet
1.94R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-1384 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.94 | 11.21 |
| Mass (M⊕) | 1.00 | 4.42 | 317.83 |
| Density (g/cm³) | 5.51 | 3.33 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.17 | 2.53 |
| Insolation (S⊕) | 1.00 | 32.23 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 184418214
Gaia DR2
Gaia DR2 2073299327909532928
Gaia DR3
Gaia DR3 2073299327911286144
System
Kepler-1384
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 15.36 Earth days (4.2% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1126 AU.
Transit Fingerprint
Depth
0.047 %
Duration
3.657 h
Impact parameter b
0.250
Rp / R★
0.023794
Transit midpoint (BJD)
2,454,978.5723
Photometric dip
Transit produces a flux drop of 468 ppm lasting ≈ 3.66 h.
Extended Orbital Architecture
Planet / star radius ratio
0.023794
Semi-major axis / stellar radius
31.050
Impact parameter (b)
0.250
Transit mid-time (BJD)
2,454,978.5723
Angular separation (arcsec)
0.18200
Eq. Temperature
608K
(335 °C)
Insolation (S⊕)
32.23
Earth = 1.00
Earth Similarity (ESI)
0.455
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water. Close-orbiting tidally-locked around a cool host.
Discovery Paper
Primary reference
Morton et al. 2016Instrument
Kepler CCD Array
Publication
2016-05
Observation locale
Space
Discovery cohort
Planets confirmed in 2016 at Kepler (12 shown).
Host System: Kepler-1384
Spectral Class
K-type orange
Effective Temperature
4,919 K — cooler than the Sun (5,778 K)
Estimated Age
4.57 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.740 R☉
Stellar Mass
0.780 M☉
Metallicity [Fe/H]
-0.06
Extended Stellar Properties
Surface gravity (log g)
4.600 dex
Stellar density
2.400 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Total Proper Motion
21.557 mas/yr
PM Right Ascension
-21.30 mas/yr
PM Declination
-3.31 mas/yr
Galactic Cartesian (pc)
x = 0.341 · y = -0.692 · z = 0.636
Equatorial (J2000)
RA 296.21513° · Dec 39.52702°
Galactic ℓ, b
73.727° · 7.564°
Ecliptic λ, β
311.748° · 59.225°
HTM-20 index
-1078922097
Similar Worlds
HD 110067 e
Super-Earth · K-type orange
Radius 1.94 R⊕ · 104.9 ly
Kepler-1600 c
Super-Earth · K-type orange
Radius 1.94 R⊕ · 3,362.0 ly
TOI-1739 b
Super-Earth · K-type orange
Radius 1.95 R⊕ · 231.5 ly
K2-368 d
Super-Earth · K-type orange
Radius 1.95 R⊕ · 673.9 ly
K2-49 b
Super-Earth · K-type orange
Radius 1.93 R⊕ · 1,490.9 ly
Kepler-298 c
Super-Earth · K-type orange
Radius 1.93 R⊕ · 1,690.2 ly