Key parameters at a glance
- A radius of 4.85 Earth radii
- A mass of 21.00 Earth masses
- Surface gravity around 0.89 g
- An orbital period of 226.890 days
- Semi-major axis 0.6648 AU
- Equilibrium temperature 236 K (-37 °C)
- Distance from Earth 2,845.69 light-years
- Earth Similarity Index 0.503
- Travel time at Voyager 1 speed 50,183,710 years
1 sibling around Kepler-712
Kepler-712 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-712 b | Sub-Neptune | 3.41 | 11.50 | 21.022 | 521 | 2016 |
| Kepler-712 c this | Neptune-like | 4.85 | 21.00 | 226.890 | 236 | 2016 |
Kepler-712 c Planet Profile
Physical Specs
Classification
Planet Type
Neptune-like
Discovery
Size rank in cohort
Rank by radius
#407of 574
top 70.7%
This planet
4.85R⊕
Neptune-like median
6.39R⊕
Nearest-size peers
| Metric | Earth | Kepler-712 c | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 4.85 | 11.21 |
| Mass (M⊕) | 1.00 | 21.00 | 317.83 |
| Density (g/cm³) | 5.51 | 1.01 | 1.33 |
| Surface Gravity (g) | 1.00 | 0.89 | 2.53 |
| Insolation (S⊕) | 1.00 | 0.66 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 271347119
Gaia DR2
Gaia DR2 2077961463362645632
Gaia DR3
Gaia DR3 2077961463362645632
System
Kepler-712
Percentile among Neptune-like cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 226.89 Earth days (62.1% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.6648 AU.
Transit Fingerprint
Depth
0.314 %
Duration
7.525 h
Impact parameter b
0.850
Rp / R★
0.057184
Transit midpoint (BJD)
2,455,040.3603
Photometric dip
Transit produces a flux drop of 3,136 ppm lasting ≈ 7.53 h.
Extended Orbital Architecture
Planet / star radius ratio
0.057184
Semi-major axis / stellar radius
131.000
Impact parameter (b)
0.850
Transit mid-time (BJD)
2,455,040.3603
Angular separation (arcsec)
0.76200
Eq. Temperature
236K
(-37 °C)
Insolation (S⊕)
0.66
Earth = 1.00
Earth Similarity (ESI)
0.503
0 = alien, 1 = Earth-identical
Within the conservative habitable zone — surface water would be frozen.
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-712
Spectral Class
K-type orange
Effective Temperature
5,148 K — cooler than the Sun (5,778 K)
Estimated Age
3.31 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.780 R☉
Stellar Mass
0.840 M☉
Metallicity [Fe/H]
-0.03
Extended Stellar Properties
Surface gravity (log g)
4.580 dex
Stellar density
1.930 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.119 mas
Total Proper Motion
11.333 mas/yr
PM Right Ascension
-5.45 mas/yr
PM Declination
-9.94 mas/yr
Galactic Cartesian (pc)
x = 0.308 · y = -0.664 · z = 0.681
Equatorial (J2000)
RA 294.90967° · Dec 42.93520°
Galactic ℓ, b
76.283° · 10.054°
Ecliptic λ, β
312.348° · 62.759°
HTM-20 index
-1455566442
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HD 153557 b
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Kepler-257 d
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