Key parameters at a glance
- A radius of 1.51 Earth radii
- A mass of 2.89 Earth masses
- Surface gravity around 1.27 g
- An orbital period of 2.092 days
- Semi-major axis 0.0320 AU
- Equilibrium temperature 1,648 K (1375 °C)
- Distance from Earth 3,581.10 light-years
- Earth Similarity Index 0.169
- Travel time at Voyager 1 speed 63,152,607 years
2 siblings around Kepler-194
Kepler-194 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-194 b this | Super-Earth | 1.51 | 2.89 | 2.092 | 1,648 | 2014 |
| Kepler-194 c | Sub-Neptune | 2.59 | 7.22 | 17.308 | 815 | 2014 |
| Kepler-194 d | Sub-Neptune | 2.40 | 6.35 | 52.815 | 562 | 2014 |
Kepler-194 b Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#730of 1176
top 62.0%
This planet
1.51R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-194 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.51 | 11.21 |
| Mass (M⊕) | 1.00 | 2.89 | 317.83 |
| Density (g/cm³) | 5.51 | 4.61 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.27 | 2.53 |
| Insolation (S⊕) | 1.00 | 953.17 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 63070427
Gaia DR2
Gaia DR2 2129234336259850240
Gaia DR3
Gaia DR3 2129234336259850240
System
Kepler-194
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 2.09 Earth days (0.6% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0320 AU.
Transit Fingerprint
Depth
0.021 %
Duration
2.351 h
Impact parameter b
0.130
Rp / R★
0.013464
Transit midpoint (BJD)
2,454,966.0596
Photometric dip
Transit produces a flux drop of 208 ppm lasting ≈ 2.35 h.
Extended Orbital Architecture
Planet / star radius ratio
0.013464
Semi-major axis / stellar radius
6.520
Impact parameter (b)
0.130
Transit mid-time (BJD)
2,454,966.0596
Angular separation (arcsec)
0.02910
Eq. Temperature
1,648K
(1375 °C)
Insolation (S⊕)
953.17
Earth = 1.00
Earth Similarity (ESI)
0.169
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.
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-194
Spectral Class
F-type yellow-white
Effective Temperature
6,089 K — hotter than the Sun (5,778 K)
Estimated Age
2.50 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
1.025 R☉
Stellar Mass
0.940 M☉
Metallicity [Fe/H]
-0.03
Extended Stellar Properties
Surface gravity (log g)
4.415 dex
Stellar density
1.020 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
0.882 mas
Total Proper Motion
25.300 mas/yr
PM Right Ascension
-7.30 mas/yr
PM Declination
-24.22 mas/yr
Galactic Cartesian (pc)
x = 0.251 · y = -0.622 · z = 0.742
Equatorial (J2000)
RA 291.97143° · Dec 47.86405°
Galactic ℓ, b
79.854° · 14.098°
Ecliptic λ, β
312.297° · 68.102°
HTM-20 index
-231707313
Similar Worlds
Kepler-1209 b
Super-Earth · F-type yellow-white
Radius 1.51 R⊕ · 1,648.8 ly
Kepler-1913 b
Super-Earth · F-type yellow-white
Radius 1.52 R⊕ · 2,858.1 ly
Kepler-394 d
Super-Earth · F-type yellow-white
Radius 1.50 R⊕ · 3,453.1 ly
Kepler-126 b
Super-Earth · F-type yellow-white
Radius 1.52 R⊕ · 774.3 ly
Kepler-1483 b
Super-Earth · F-type yellow-white
Radius 1.52 R⊕ · 4,154.5 ly
Kepler-1323 b
Super-Earth · F-type yellow-white
Radius 1.52 R⊕ · 1,518.0 ly