Key parameters at a glance
- A radius of 1.44 Earth radii
- A mass of 5.60 Earth masses
- Surface gravity around 2.70 g
- An orbital period of 7.126 days
- Semi-major axis 0.0723 AU
- Equilibrium temperature 997 K (724 °C)
- Distance from Earth 1,497.78 light-years
- Earth Similarity Index 0.268
- Travel time at Voyager 1 speed 26,413,408 years
1 sibling around Kepler-105
Kepler-105 c 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-105 b | Sub-Neptune | 2.53 | 10.80 | 5.412 | 1,418 | 2013 |
| Kepler-105 c this | Super-Earth | 1.44 | 5.60 | 7.126 | 997 | 2014 |
Kepler-105 c Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#850of 1176
top 72.2%
This planet
1.44R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-105 c | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.44 | 11.21 |
| Mass (M⊕) | 1.00 | 5.60 | 317.83 |
| Density (g/cm³) | 5.51 | 10.40 | 1.33 |
| Surface Gravity (g) | 1.00 | 2.70 | 2.53 |
| Insolation (S⊕) | 1.00 | 236.17 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 5.600 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 158625964
Gaia DR2
Gaia DR2 2130368310704421120
Gaia DR3
Gaia DR3 2130368310704421120
System
Kepler-105
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 7.13 Earth days (2.0% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0723 AU.
Transit Fingerprint
Depth
0.019 %
Duration
3.001 h
Impact parameter b
0.558
Rp / R★
0.012960
Transit midpoint (BJD)
2,454,957.7530
Photometric dip
Transit produces a flux drop of 194 ppm lasting ≈ 3.00 h.
Extended Orbital Architecture
Planet / star radius ratio
0.012960
Semi-major axis / stellar radius
19.270
Impact parameter (b)
0.558
Transit mid-time (BJD)
2,454,957.7530
Long. of periastron (ω)
298.90°
Angular separation (arcsec)
0.15700
Eq. Temperature
997K
(724 °C)
Insolation (S⊕)
236.17
Earth = 1.00
Earth Similarity (ESI)
0.268
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water.
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
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-105
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,933 K — hotter than the Sun (5,778 K)
Estimated Age
4.27 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
1.026 R☉
Stellar Mass
0.991 M☉
Metallicity [Fe/H]
-0.09
Extended Stellar Properties
Surface gravity (log g)
4.432 dex
Stellar density
0.920 g/cm³
Systemic radial velocity
1.97 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
2.149 mas
Total Proper Motion
24.209 mas/yr
PM Right Ascension
-9.64 mas/yr
PM Declination
-22.21 mas/yr
Galactic Cartesian (pc)
x = 0.212 · y = -0.658 · z = 0.723
Equatorial (J2000)
RA 287.88724° · Dec 46.27612°
Galactic ℓ, b
77.185° · 15.999°
Ecliptic λ, β
303.887° · 67.622°
HTM-20 index
-1740157814
Similar Worlds
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Super-Earth · G-type yellow (Sun-like)
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Kepler-1310 b
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