Key parameters at a glance
- A radius of 3.71 Earth radii
- A mass of 17.40 Earth masses
- Surface gravity around 1.27 g
- An orbital period of 25.303 days
- Semi-major axis 0.1582 AU
- Equilibrium temperature 535 K (262 °C)
- Distance from Earth 2,097.21 light-years
- Earth Similarity Index 0.379
- Travel time at Voyager 1 speed 36,984,339 years
- Almost certainly tidally locked to its host star given the close orbit
1 sibling around Kepler-595
Kepler-595 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-595 c | Rocky Terrestrial | 1.01 | 3.30 | 12.386 | 679 | 2020 |
| Kepler-595 b this | Sub-Neptune | 3.71 | 17.40 | 25.303 | 535 | 2016 |
Kepler-595 b Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#89of 1978
top 4.4%
This planet
3.71R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-595 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 3.71 | 11.21 |
| Mass (M⊕) | 1.00 | 17.40 | 317.83 |
| Density (g/cm³) | 5.51 | 1.23 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.27 | 2.53 |
| Insolation (S⊕) | 1.00 | 17.38 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 17.400 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 27231753
Gaia DR2
Gaia DR2 2135237601028549888
Gaia DR3
Gaia DR3 2135237601028549888
System
Kepler-595
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 25.30 Earth days (6.9% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1582 AU.
Transit Fingerprint
Depth
0.211 %
Duration
4.520 h
Impact parameter b
0.828
Rp / R★
0.042028
Transit midpoint (BJD)
2,455,021.0602
Photometric dip
Transit produces a flux drop of 2,106 ppm lasting ≈ 4.52 h.
Extended Orbital Architecture
Planet / star radius ratio
0.042028
Semi-major axis / stellar radius
44.730
Impact parameter (b)
0.828
Transit mid-time (BJD)
2,455,021.0602
Angular separation (arcsec)
0.24600
Eq. Temperature
535K
(262 °C)
Insolation (S⊕)
17.38
Earth = 1.00
Earth Similarity (ESI)
0.379
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.
Detection Signatures
Transit photometry
A transit dip has been observed from at least one telescope.
Transit timing variations
Gravitational interactions from neighbours have been detected.
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-595
Spectral Class
K-type orange
Effective Temperature
5,139 K — cooler than the Sun (5,778 K)
Estimated Age
2.70 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.821 R☉
Stellar Mass
0.930 M☉
Metallicity [Fe/H]
0.41
Extended Stellar Properties
Surface gravity (log g)
4.540 dex
Stellar density
2.608 g/cm³
Metallicity ratio
[M/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.526 mas
Total Proper Motion
1.444 mas/yr
PM Right Ascension
-1.36 mas/yr
PM Declination
-0.50 mas/yr
Galactic Cartesian (pc)
x = 0.264 · y = -0.576 · z = 0.774
Equatorial (J2000)
RA 294.57036° · Dec 50.67301°
Galactic ℓ, b
83.218° · 13.783°
Ecliptic λ, β
319.998° · 69.880°
HTM-20 index
393631996
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