Key parameters at a glance
- A radius of 1.40 Earth radii
- A mass of 2.54 Earth masses
- Surface gravity around 1.30 g
- An orbital period of 14.436 days
- Semi-major axis 0.1250 AU
- Equilibrium temperature 884 K (611 °C)
- Distance from Earth 1,150.66 light-years
- Earth Similarity Index 0.348
- Travel time at Voyager 1 speed 20,291,867 years
2 siblings around Kepler-127
Kepler-127 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-127 b this | Super-Earth | 1.40 | 2.54 | 14.436 | 884 | 2014 |
| Kepler-127 c | Sub-Neptune | 2.66 | 7.56 | 29.393 | 698 | 2014 |
| Kepler-127 d | Sub-Neptune | 2.64 | 7.46 | 48.630 | 590 | 2014 |
Kepler-127 b Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#923of 1176
top 78.4%
This planet
1.40R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-127 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.40 | 11.21 |
| Mass (M⊕) | 1.00 | 2.54 | 317.83 |
| Density (g/cm³) | 5.51 | 5.09 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.30 | 2.53 |
| Insolation (S⊕) | 1.00 | 159.16 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 164881786
Gaia DR2
Gaia DR2 2107266570672734592
Gaia DR3
Gaia DR3 2107266570672734592
System
Kepler-127
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 14.44 Earth days (4.0% of a terrestrial year) on a highly eccentric trajectory at a mean orbital distance of 0.1250 AU.
Transit Fingerprint
Depth
0.011 %
Duration
3.435 h
Impact parameter b
0.490
Rp / R★
0.010170
Transit midpoint (BJD)
2,454,974.5114
Photometric dip
Transit produces a flux drop of 113 ppm lasting ≈ 3.44 h.
Extended Orbital Architecture
Planet / star radius ratio
0.010170
Semi-major axis / stellar radius
18.000
Impact parameter (b)
0.490
Transit mid-time (BJD)
2,454,974.5114
Angular separation (arcsec)
0.35400
Eq. Temperature
884K
(611 °C)
Insolation (S⊕)
159.16
Earth = 1.00
Earth Similarity (ESI)
0.348
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
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-127
Spectral Class
F-type yellow-white
Effective Temperature
6,106 K — hotter than the Sun (5,778 K)
Estimated Age
2.69 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
1.359 R☉
Stellar Mass
1.248 M☉
Metallicity [Fe/H]
0.21
Extended Stellar Properties
Surface gravity (log g)
4.265 dex
Stellar density
0.480 g/cm³
Systemic radial velocity
-21.16 km/s
Metallicity ratio
[M/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
2.806 mas
Total Proper Motion
20.887 mas/yr
PM Right Ascension
-1.48 mas/yr
PM Declination
20.83 mas/yr
Galactic Cartesian (pc)
x = 0.182 · y = -0.670 · z = 0.720
Equatorial (J2000)
RA 285.18994° · Dec 46.02806°
Galactic ℓ, b
76.216° · 17.640°
Ecliptic λ, β
298.975° · 67.945°
HTM-20 index
-1397135075
Similar Worlds
Kepler-1921 c
Super-Earth · F-type yellow-white
Radius 1.41 R⊕ · 3,030.0 ly
Kepler-1383 b
Super-Earth · F-type yellow-white
Radius 1.41 R⊕ · 3,350.3 ly
Kepler-208 c
Super-Earth · F-type yellow-white
Radius 1.39 R⊕ · 2,528.8 ly
Kepler-1394 b
Super-Earth · F-type yellow-white
Radius 1.39 R⊕ · 2,088.7 ly
Kepler-187 b
Super-Earth · F-type yellow-white
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Kepler-323 b
Super-Earth · F-type yellow-white
Radius 1.38 R⊕ · 1,483.6 ly