Key parameters at a glance
- A radius of 2.06 Earth radii
- A mass of 4.90 Earth masses
- Surface gravity around 1.15 g
- An orbital period of 10.297 days
- Semi-major axis 0.1009 AU
- Equilibrium temperature 1,129 K (856 °C)
- Distance from Earth 3,234.22 light-years
- Earth Similarity Index 0.235
- Travel time at Voyager 1 speed 57,035,495 years
- Almost certainly tidally locked to its host star given the close orbit
1 sibling around Kepler-913
Kepler-913 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-913 c | Sub-Neptune | 3.86 | 14.20 | 5.939 | 1,357 | 2021 |
| Kepler-913 b this | Sub-Neptune | 2.06 | 4.90 | 10.297 | 1,129 | 2016 |
Kepler-913 b Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#1875of 1978
top 94.7%
This planet
2.06R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-913 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 2.06 | 11.21 |
| Mass (M⊕) | 1.00 | 4.90 | 317.83 |
| Density (g/cm³) | 5.51 | 3.08 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.15 | 2.53 |
| Insolation (S⊕) | 1.00 | 58.90 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 169465273
Gaia DR2
Gaia DR2 2076924314661348736
Gaia DR3
Gaia DR3 2076924314661348736
System
Kepler-913
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 10.30 Earth days (2.8% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1009 AU.
Transit Fingerprint
Depth
0.101 %
Duration
2.724 h
Impact parameter b
0.298
Rp / R★
0.031238
Transit midpoint (BJD)
2,454,965.1966
Photometric dip
Transit produces a flux drop of 1,012 ppm lasting ≈ 2.72 h.
Extended Orbital Architecture
Planet / star radius ratio
0.031238
Semi-major axis / stellar radius
28.900
Impact parameter (b)
0.298
Transit mid-time (BJD)
2,454,965.1966
Angular separation (arcsec)
0.10200
Eq. Temperature
1,129K
(856 °C)
Insolation (S⊕)
58.90
Earth = 1.00
Earth Similarity (ESI)
0.235
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched. Close-orbiting tidally-locked around a cool host.
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-913
Spectral Class
K-type orange
Effective Temperature
4,687 K — cooler than the Sun (5,778 K)
Estimated Age
5.62 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
0.610 R☉
Stellar Mass
0.630 M☉
Metallicity [Fe/H]
-0.52
Extended Stellar Properties
Surface gravity (log g)
4.670 dex
Stellar density
4.307 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
0.981 mas
Total Proper Motion
12.057 mas/yr
PM Right Ascension
-7.68 mas/yr
PM Declination
-9.29 mas/yr
Galactic Cartesian (pc)
x = 0.344 · y = -0.659 · z = 0.669
Equatorial (J2000)
RA 297.58306° · Dec 41.95235°
Galactic ℓ, b
76.373° · 7.852°
Ecliptic λ, β
315.457° · 61.110°
HTM-20 index
-887397815
Similar Worlds
HD 48948 b
Sub-Neptune · K-type orange
Radius 2.06 R⊕ · 55.1 ly
K2-321 b
Sub-Neptune · K-type orange
Radius 2.05 R⊕ · 253.4 ly
Kepler-988 b
Sub-Neptune · K-type orange
Radius 2.07 R⊕ · 994.4 ly
TOI-262 b
Sub-Neptune · K-type orange
Radius 2.07 R⊕ · 143.3 ly
Kepler-161 c
Sub-Neptune · K-type orange
Radius 2.05 R⊕ · 1,417.6 ly
TOI-712 b
Sub-Neptune · K-type orange
Radius 2.05 R⊕ · 191.2 ly