Key parameters at a glance
- A radius of 1.90 Earth radii
- A mass of 4.27 Earth masses
- Surface gravity around 1.18 g
- An orbital period of 20.740 days
- Semi-major axis 0.1380 AU
- Equilibrium temperature 536 K (263 °C)
- Distance from Earth 1,471.98 light-years
- Earth Similarity Index 0.515
- Travel time at Voyager 1 speed 25,958,386 years
- Almost certainly tidally locked to its host star given the close orbit
2 siblings around Kepler-196
Kepler-196 b shares its host star with 2 other confirmed planets. Side-by-side measurements below.
| Planet | Type | Radius (R⊕) | Mass (M⊕) | Period (d) | Eq. T (K) | Year |
|---|---|---|---|---|---|---|
| Kepler-196 b this | Super-Earth | 1.90 | 4.27 | 20.740 | 536 | 2014 |
| Kepler-196 c | Sub-Neptune | 2.24 | 5.65 | 47.428 | 407 | 2014 |
| Kepler-196 d | Sub-Neptune | 2.66 | 7.56 | 122.080 | 297 | 2021 |
Kepler-196 b Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#125of 1176
top 10.5%
This planet
1.90R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-196 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.90 | 11.21 |
| Mass (M⊕) | 1.00 | 4.27 | 317.83 |
| Density (g/cm³) | 5.51 | 3.42 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.18 | 2.53 |
| Insolation (S⊕) | 1.00 | 20.74 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 164828012
Gaia DR2
Gaia DR2 2104094071610116608
Gaia DR3
Gaia DR3 2104094071610116608
System
Kepler-196
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 20.74 Earth days (5.7% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1380 AU.
Transit Fingerprint
Depth
0.063 %
Duration
3.014 h
Impact parameter b
0.290
Rp / R★
0.022470
Transit midpoint (BJD)
2,455,006.2182
Photometric dip
Transit produces a flux drop of 630 ppm lasting ≈ 3.01 h.
Extended Orbital Architecture
Planet / star radius ratio
0.022470
Semi-major axis / stellar radius
53.105
Impact parameter (b)
0.290
Transit mid-time (BJD)
2,455,006.2182
Angular separation (arcsec)
0.30600
Eq. Temperature
536K
(263 °C)
Insolation (S⊕)
20.74
Earth = 1.00
Earth Similarity (ESI)
0.515
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.
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-196
Spectral Class
K-type orange
Effective Temperature
5,128 K — cooler than the Sun (5,778 K)
Estimated Age
3.09 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.782 R☉
Stellar Mass
0.839 M☉
Metallicity [Fe/H]
0.03
Extended Stellar Properties
Surface gravity (log g)
4.566 dex
Stellar density
1.740 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
2.187 mas
Total Proper Motion
15.875 mas/yr
PM Right Ascension
-3.03 mas/yr
PM Declination
-15.58 mas/yr
Galactic Cartesian (pc)
x = 0.192 · y = -0.717 · z = 0.670
Equatorial (J2000)
RA 284.96851° · Dec 42.07912°
Galactic ℓ, b
72.315° · 16.336°
Ecliptic λ, β
296.098° · 64.168°
HTM-20 index
2038205939
Similar Worlds
K2-155 d
Super-Earth · K-type orange
Radius 1.90 R⊕ · 237.4 ly
Kepler-158 c
Super-Earth · K-type orange
Radius 1.90 R⊕ · 1,028.0 ly
Kepler-601 b
Super-Earth · K-type orange
Radius 1.90 R⊕ · 1,353.0 ly
Kepler-1669 c
Super-Earth · K-type orange
Radius 1.90 R⊕ · 1,772.5 ly
K2-47 b
Super-Earth · K-type orange
Radius 1.89 R⊕ · 1,141.2 ly
TOI-5789 d
Super-Earth · K-type orange
Radius 1.91 R⊕ · 66.7 ly