Key parameters at a glance
- A radius of 0.86 Earth radii
- A mass of 0.57 Earth masses
- Surface gravity around 0.77 g
- An orbital period of 10.055 days
- Semi-major axis 0.0850 AU
- Equilibrium temperature 694 K (421 °C)
- Distance from Earth 824.30 light-years
- Earth Similarity Index 0.453
- Travel time at Voyager 1 speed 14,536,597 years
2 siblings around Kepler-352
Kepler-352 b 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-352 d | Rocky Terrestrial | 0.81 | 0.45 | 6.887 | 788 | 2021 |
| Kepler-352 b this | Rocky Terrestrial | 0.86 | 0.57 | 10.055 | 694 | 2014 |
| Kepler-352 c | Rocky Terrestrial | 1.24 | 2.07 | 16.333 | 591 | 2014 |
Kepler-352 b Planet Profile
Physical Specs
Classification
Planet Type
Rocky Terrestrial
Discovery
Size rank in cohort
Rank by radius
#444of 570
top 77.7%
This planet
0.86R⊕
Rocky Terrestrial median
1.01R⊕
Nearest-size peers
| Metric | Earth | Kepler-352 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 0.86 | 11.21 |
| Mass (M⊕) | 1.00 | 0.57 | 317.83 |
| Density (g/cm³) | 5.51 | 4.89 | 1.33 |
| Surface Gravity (g) | 1.00 | 0.77 | 2.53 |
| Insolation (S⊕) | 1.00 | 50.39 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 269271535
Gaia DR2
Gaia DR2 2085281530744134272
Gaia DR3
Gaia DR3 2085281530744134272
System
Kepler-352
Percentile among Rocky Terrestrial cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 10.06 Earth days (2.8% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0850 AU.
Transit Fingerprint
Depth
0.015 %
Duration
2.963 h
Impact parameter b
0.260
Rp / R★
0.010833
Transit midpoint (BJD)
2,455,006.2330
Photometric dip
Transit produces a flux drop of 146 ppm lasting ≈ 2.96 h.
Extended Orbital Architecture
Planet / star radius ratio
0.010833
Semi-major axis / stellar radius
26.280
Impact parameter (b)
0.260
Transit mid-time (BJD)
2,455,006.2330
Angular separation (arcsec)
0.33600
Eq. Temperature
694K
(421 °C)
Insolation (S⊕)
50.39
Earth = 1.00
Earth Similarity (ESI)
0.453
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water.
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-352
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,212 K — cooler than the Sun (5,778 K)
Estimated Age
1.70 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.781 R☉
Stellar Mass
0.798 M☉
Metallicity [Fe/H]
-0.11
Extended Stellar Properties
Surface gravity (log g)
4.566 dex
Stellar density
2.010 g/cm³
Systemic radial velocity
-5.87 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
3.928 mas
Total Proper Motion
24.538 mas/yr
PM Right Ascension
13.85 mas/yr
PM Declination
-20.25 mas/yr
Galactic Cartesian (pc)
x = 0.346 · y = -0.602 · z = 0.720
Equatorial (J2000)
RA 299.89662° · Dec 46.05190°
Galactic ℓ, b
80.798° · 8.472°
Ecliptic λ, β
322.477° · 64.143°
HTM-20 index
-1955098591
Similar Worlds
Kepler-107 d
Rocky Terrestrial · G-type yellow (Sun-like)
Radius 0.86 R⊕ · 1,715.6 ly
Kepler-1258 b
Rocky Terrestrial · G-type yellow (Sun-like)
Radius 0.86 R⊕ · 2,340.3 ly
K2-210 b
Rocky Terrestrial · G-type yellow (Sun-like)
Radius 0.86 R⊕ · 575.7 ly
Kepler-605 c
Rocky Terrestrial · G-type yellow (Sun-like)
Radius 0.86 R⊕ · 1,815.3 ly
Kepler-1972 c
Rocky Terrestrial · G-type yellow (Sun-like)
Radius 0.87 R⊕ · 937.2 ly
Kepler-1385 b
Rocky Terrestrial · G-type yellow (Sun-like)
Radius 0.85 R⊕ · 2,246.5 ly