Key parameters at a glance
- A radius of 2.72 Earth radii
- A mass of 7.85 Earth masses
- Surface gravity around 1.06 g
- An orbital period of 34.060 days
- Semi-major axis 0.2100 AU
- Equilibrium temperature 554 K (281 °C)
- Distance from Earth 3,591.30 light-years
- Earth Similarity Index 0.438
- Travel time at Voyager 1 speed 63,332,638 years
1 sibling around Kepler-358
Kepler-358 b shares its host star with 1 other confirmed planet. Side-by-side measurements below.
| Planet | Type | Radius (R⊕) | Mass (M⊕) | Period (d) | Eq. T (K) | Year |
|---|---|---|---|---|---|---|
| Kepler-358 b this | Sub-Neptune | 2.72 | 7.85 | 34.060 | 554 | 2014 |
| Kepler-358 c | Sub-Neptune | 2.85 | 8.50 | 83.488 | 411 | 2014 |
Kepler-358 b Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#838of 1978
top 42.3%
This planet
2.72R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-358 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 2.72 | 11.21 |
| Mass (M⊕) | 1.00 | 7.85 | 317.83 |
| Density (g/cm³) | 5.51 | 2.14 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.06 | 2.53 |
| Insolation (S⊕) | 1.00 | 21.81 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 26815908
Gaia DR2
Gaia DR2 2128902558627267200
Gaia DR3
Gaia DR3 2128902558627267200
System
Kepler-358
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 34.06 Earth days (9.3% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.2100 AU.
Transit Fingerprint
Depth
0.082 %
Duration
2.461 h
Impact parameter b
0.380
Rp / R★
0.028309
Transit midpoint (BJD)
2,454,974.3633
Photometric dip
Transit produces a flux drop of 819 ppm lasting ≈ 2.46 h.
Extended Orbital Architecture
Planet / star radius ratio
0.028309
Semi-major axis / stellar radius
59.000
Impact parameter (b)
0.380
Transit mid-time (BJD)
2,454,974.3633
Angular separation (arcsec)
0.19100
Eq. Temperature
554K
(281 °C)
Insolation (S⊕)
21.81
Earth = 1.00
Earth Similarity (ESI)
0.438
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-358
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,908 K — hotter than the Sun (5,778 K)
Estimated Age
0.40 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.954 R☉
Stellar Mass
0.940 M☉
Metallicity [Fe/H]
0.04
Extended Stellar Properties
Surface gravity (log g)
4.504 dex
Stellar density
2.434 g/cm³
Metallicity ratio
[M/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
0.880 mas
Total Proper Motion
2.187 mas/yr
PM Right Ascension
-0.46 mas/yr
PM Declination
-2.14 mas/yr
Galactic Cartesian (pc)
x = 0.262 · y = -0.612 · z = 0.746
Equatorial (J2000)
RA 293.23023° · Dec 48.28139°
Galactic ℓ, b
80.613° · 13.517°
Ecliptic λ, β
314.814° · 68.137°
HTM-20 index
-580377710
Similar Worlds
K2-331 c
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.72 R⊕ · 689.6 ly
Kepler-351 d
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.72 R⊕ · 3,535.2 ly
Kepler-979 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.72 R⊕ · 1,880.3 ly
Kepler-1748 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.71 R⊕ · 3,533.2 ly
EPIC 220674823 c
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.71 R⊕ · 797.7 ly
K2-380 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.73 R⊕ · 813.1 ly