Key parameters at a glance
- A radius of 7.65 Earth radii
- A mass of 45.40 Earth masses
- Surface gravity around 0.78 g
- An orbital period of 130.355 days
- Semi-major axis 0.5183 AU
- Equilibrium temperature 369 K (96 °C)
- Distance from Earth 4,253.89 light-years
- Earth Similarity Index 0.391
- Travel time at Voyager 1 speed 75,017,339 years
Kepler-952 b Planet Profile
Physical Specs
Classification
Planet Type
Neptune-like
Discovery
Size rank in cohort
Rank by radius
#171of 574
top 29.6%
This planet
7.65R⊕
Neptune-like median
6.39R⊕
Nearest-size peers
| Metric | Earth | Kepler-952 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 7.65 | 11.21 |
| Mass (M⊕) | 1.00 | 45.40 | 317.83 |
| Density (g/cm³) | 5.51 | 0.56 | 1.33 |
| Surface Gravity (g) | 1.00 | 0.78 | 2.53 |
| Insolation (S⊕) | 1.00 | 5.05 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 120495241
Gaia DR2
Gaia DR2 2104168288644696320
Gaia DR3
Gaia DR3 2104168288644696320
System
Kepler-952
Percentile among Neptune-like cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 130.35 Earth days (35.7% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.5183 AU.
Transit Fingerprint
Depth
0.513 %
Duration
6.382 h
Impact parameter b
0.675
Rp / R★
0.071381
Transit midpoint (BJD)
2,454,977.0601
Photometric dip
Transit produces a flux drop of 5,129 ppm lasting ≈ 6.38 h.
Extended Orbital Architecture
Planet / star radius ratio
0.071381
Semi-major axis / stellar radius
175.000
Impact parameter (b)
0.675
Transit mid-time (BJD)
2,454,977.0601
Angular separation (arcsec)
0.39700
Eq. Temperature
369K
(96 °C)
Insolation (S⊕)
5.05
Earth = 1.00
Earth Similarity (ESI)
0.391
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — liquid water is physically possible with adequate atmospheric pressure.
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-952
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,730 K — cooler than the Sun (5,778 K)
Estimated Age
4.27 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.990 R☉
Stellar Mass
1.000 M☉
Metallicity [Fe/H]
0.06
Extended Stellar Properties
Surface gravity (log g)
4.450 dex
Stellar density
2.313 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
0.738 mas
Total Proper Motion
13.957 mas/yr
PM Right Ascension
-12.46 mas/yr
PM Declination
-6.28 mas/yr
Galactic Cartesian (pc)
x = 0.197 · y = -0.717 · z = 0.669
Equatorial (J2000)
RA 285.37188° · Dec 41.99387°
Galactic ℓ, b
72.351° · 16.026°
Ecliptic λ, β
296.717° · 64.014°
HTM-20 index
2086043221
Similar Worlds
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Neptune-like · G-type yellow (Sun-like)
Radius 7.66 R⊕ · 1,604.3 ly
Kepler-118 c
Neptune-like · G-type yellow (Sun-like)
Radius 7.68 R⊕ · 1,872.9 ly
K2-87 b
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HD 134606 d
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Radius 7.59 R⊕ · 87.4 ly
55 Cnc f
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OGLE-2012-BLG-0026L b
Neptune-like · G-type yellow (Sun-like)
Radius 7.72 R⊕ · 13,108.2 ly