Key parameters at a glance
- A radius of 1.31 Earth radii
- A mass of 2.27 Earth masses
- Surface gravity around 1.32 g
- An orbital period of 16.934 days
- Semi-major axis 0.1150 AU
- Equilibrium temperature 508 K (235 °C)
- Distance from Earth 1,807.11 light-years
- Earth Similarity Index 0.607
- Travel time at Voyager 1 speed 31,868,436 years
- Almost certainly tidally locked to its host star given the close orbit
2 siblings around Kepler-354
Kepler-354 c shares its host star with 2 other confirmed planets. Side-by-side measurements below.
| Planet | Type | Radius (R⊕) | Mass (M⊕) | Period (d) | Eq. T (K) | Year |
|---|---|---|---|---|---|---|
| Kepler-354 b | Super-Earth | 1.84 | 4.04 | 5.477 | 741 | 2014 |
| Kepler-354 c this | Super-Earth | 1.31 | 2.27 | 16.934 | 508 | 2014 |
| Kepler-354 d | Rocky Terrestrial | 1.24 | 2.07 | 24.210 | 451 | 2014 |
Kepler-354 c Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#1072of 1176
top 91.1%
This planet
1.31R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-354 c | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.31 | 11.21 |
| Mass (M⊕) | 1.00 | 2.27 | 317.83 |
| Density (g/cm³) | 5.51 | 5.55 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.32 | 2.53 |
| Insolation (S⊕) | 1.00 | 14.40 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 120578185
Gaia DR2
Gaia DR2 2103860562828483712
Gaia DR3
Gaia DR3 2103860562828483712
System
Kepler-354
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 16.93 Earth days (4.6% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1150 AU.
Transit Fingerprint
Depth
0.036 %
Duration
3.456 h
Impact parameter b
0.630
Rp / R★
0.017030
Transit midpoint (BJD)
2,454,970.2677
Photometric dip
Transit produces a flux drop of 356 ppm lasting ≈ 3.46 h.
Extended Orbital Architecture
Planet / star radius ratio
0.017030
Semi-major axis / stellar radius
32.600
Impact parameter (b)
0.630
Transit mid-time (BJD)
2,454,970.2677
Angular separation (arcsec)
0.20800
Eq. Temperature
508K
(235 °C)
Insolation (S⊕)
14.40
Earth = 1.00
Earth Similarity (ESI)
0.607
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
Rowe et al. 2014Instrument
Kepler CCD Array
Publication
2014-03
Observation locale
Space
Discovery cohort
Planets confirmed in 2014 at Kepler (12 shown).
Host System: Kepler-354
Spectral Class
K-type orange
Effective Temperature
4,648 K — cooler than the Sun (5,778 K)
Estimated Age
13.80 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
0.674 R☉
Stellar Mass
0.652 M☉
Metallicity [Fe/H]
-0.03
Extended Stellar Properties
Surface gravity (log g)
4.627 dex
Stellar density
1.916 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.776 mas
Total Proper Motion
12.881 mas/yr
PM Right Ascension
9.80 mas/yr
PM Declination
8.36 mas/yr
Galactic Cartesian (pc)
x = 0.204 · y = -0.723 · z = 0.660
Equatorial (J2000)
RA 285.75153° · Dec 41.33567°
Galactic ℓ, b
71.832° · 15.512°
Ecliptic λ, β
296.981° · 63.307°
HTM-20 index
1986258038
Similar Worlds
Kepler-1254 d
Super-Earth · K-type orange
Radius 1.31 R⊕ · 2,031.4 ly
Kepler-821 b
Super-Earth · K-type orange
Radius 1.31 R⊕ · 2,004.5 ly
Kepler-62 b
Super-Earth · K-type orange
Radius 1.31 R⊕ · 981.3 ly
K2-233 b
Super-Earth · K-type orange
Radius 1.32 R⊕ · 220.2 ly
TOI-2076 e
Super-Earth · K-type orange
Radius 1.30 R⊕ · 136.7 ly
Kepler-1783 b
Super-Earth · K-type orange
Radius 1.32 R⊕ · 861.3 ly