Key parameters at a glance
- A radius of 1.41 Earth radii
- A mass of 2.57 Earth masses
- Surface gravity around 1.29 g
- An orbital period of 0.684 days
- Semi-major axis 0.0141 AU
- Equilibrium temperature 2,023 K (1750 °C)
- Distance from Earth 1,765.12 light-years
- Earth Similarity Index 0.135
- Travel time at Voyager 1 speed 31,127,896 years
- Almost certainly tidally locked to its host star given the close orbit
Kepler-1604 b Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#902of 1176
top 76.6%
This planet
1.41R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-1604 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.41 | 11.21 |
| Mass (M⊕) | 1.00 | 2.57 | 317.83 |
| Density (g/cm³) | 5.51 | 5.04 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.29 | 2.53 |
| Insolation (S⊕) | 1.00 | 1,391.40 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 351911398
Gaia DR2
Gaia DR2 2105964306529014400
Gaia DR3
Gaia DR3 2105964306529014400
System
Kepler-1604
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts roughly 16.4 hours long on a nearly circular orbit at a mean orbital distance of 0.0141 AU.
Transit Fingerprint
Depth
0.029 %
Duration
0.999 h
Impact parameter b
0.633
Rp / R★
0.016915
Transit midpoint (BJD)
2,454,964.6604
Photometric dip
Transit produces a flux drop of 286 ppm lasting ≈ 1.00 h.
Extended Orbital Architecture
Planet / star radius ratio
0.016915
Semi-major axis / stellar radius
1.268
Impact parameter (b)
0.633
Transit mid-time (BJD)
2,454,964.6604
Angular separation (arcsec)
0.02600
Eq. Temperature
2,023K
(1750 °C)
Insolation (S⊕)
1,391.40
Earth = 1.00
Earth Similarity (ESI)
0.135
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched. 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-1604
Spectral Class
K-type orange
Effective Temperature
4,976 K — cooler than the Sun (5,778 K)
Estimated Age
4.17 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.760 R☉
Stellar Mass
0.810 M☉
Metallicity [Fe/H]
0.02
Extended Stellar Properties
Surface gravity (log g)
4.590 dex
Stellar density
1.940 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.819 mas
Total Proper Motion
2.748 mas/yr
PM Right Ascension
2.71 mas/yr
PM Declination
-0.48 mas/yr
Galactic Cartesian (pc)
x = 0.190 · y = -0.689 · z = 0.700
Equatorial (J2000)
RA 285.41065° · Dec 44.41223°
Galactic ℓ, b
74.700° · 16.906°
Ecliptic λ, β
298.235° · 66.347°
HTM-20 index
127739921
Similar Worlds
Kepler-237 b
Super-Earth · K-type orange
Radius 1.41 R⊕ · 2,145.5 ly
Kepler-62 f
Super-Earth · K-type orange
Radius 1.41 R⊕ · 981.3 ly
Kepler-141 c
Super-Earth · K-type orange
Radius 1.41 R⊕ · 982.3 ly
Kepler-1848 b
Super-Earth · K-type orange
Radius 1.41 R⊕ · 1,010.1 ly
Kepler-1813 b
Super-Earth · K-type orange
Radius 1.41 R⊕ · —
Kepler-1038 c
Super-Earth · K-type orange
Radius 1.42 R⊕ · 1,905.2 ly