Key parameters at a glance
- A radius of 2.42 Earth radii
- A mass of 6.44 Earth masses
- Surface gravity around 1.10 g
- An orbital period of 6.532 days
- Semi-major axis 0.0650 AU
- Equilibrium temperature 907 K (634 °C)
- Distance from Earth 3,267.04 light-years
- Earth Similarity Index 0.281
- Travel time at Voyager 1 speed 57,614,237 years
1 sibling around Kepler-920
Kepler-920 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-920 b this | Sub-Neptune | 2.42 | 6.44 | 6.532 | 907 | 2016 |
| Kepler-920 c | Sub-Neptune | 3.80 | 13.80 | 100.827 | 364 | 2016 |
Kepler-920 b Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#1299of 1978
top 65.6%
This planet
2.42R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-920 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 2.42 | 11.21 |
| Mass (M⊕) | 1.00 | 6.44 | 317.83 |
| Density (g/cm³) | 5.51 | 2.50 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.10 | 2.53 |
| Insolation (S⊕) | 1.00 | 153.14 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 267570317
Gaia DR2
Gaia DR2 2131815577243101696
Gaia DR3
Gaia DR3 2131815577243101696
System
Kepler-920
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 6.53 Earth days (1.8% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0650 AU.
Transit Fingerprint
Depth
0.077 %
Duration
3.116 h
Impact parameter b
0.201
Rp / R★
0.026068
Transit midpoint (BJD)
2,454,969.0339
Photometric dip
Transit produces a flux drop of 772 ppm lasting ≈ 3.12 h.
Extended Orbital Architecture
Planet / star radius ratio
0.026068
Semi-major axis / stellar radius
16.120
Impact parameter (b)
0.201
Transit mid-time (BJD)
2,454,969.0339
Angular separation (arcsec)
0.06490
Eq. Temperature
907K
(634 °C)
Insolation (S⊕)
153.14
Earth = 1.00
Earth Similarity (ESI)
0.281
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
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-920
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,403 K — cooler than the Sun (5,778 K)
Estimated Age
4.37 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.850 R☉
Stellar Mass
0.890 M☉
Metallicity [Fe/H]
0.00
Extended Stellar Properties
Surface gravity (log g)
4.540 dex
Stellar density
1.080 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
0.970 mas
Total Proper Motion
19.935 mas/yr
PM Right Ascension
-6.44 mas/yr
PM Declination
-18.87 mas/yr
Galactic Cartesian (pc)
x = 0.161 · y = -0.634 · z = 0.757
Equatorial (J2000)
RA 284.29694° · Dec 49.15860°
Galactic ℓ, b
79.092° · 19.291°
Ecliptic λ, β
299.928° · 71.115°
HTM-20 index
-430307561
Similar Worlds
Kepler-680 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.42 R⊕ · 4,867.8 ly
HD 224018 c
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.42 R⊕ · 344.0 ly
Kepler-717 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.42 R⊕ · 9,150.2 ly
HD 1461 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.42 R⊕ · 76.5 ly
TOI-4308 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.42 R⊕ · 355.3 ly
Kepler-1871 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.42 R⊕ · 2,787.4 ly