Key parameters at a glance
- A radius of 2.28 Earth radii
- A mass of 5.83 Earth masses
- Surface gravity around 1.12 g
- An orbital period of 13.815 days
- Semi-major axis 0.0903 AU
- Equilibrium temperature 391 K (118 °C)
- Distance from Earth 509.66 light-years
- Earth Similarity Index 0.632
- Travel time at Voyager 1 speed 8,987,931 years
- Almost certainly tidally locked to its host star given the close orbit
Kepler-1712 b Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#1535of 1978
top 77.6%
This planet
2.28R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-1712 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 2.28 | 11.21 |
| Mass (M⊕) | 1.00 | 5.83 | 317.83 |
| Density (g/cm³) | 5.51 | 2.69 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.12 | 2.53 |
| Insolation (S⊕) | 1.00 | 5.52 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 48503881
Gaia DR2
Gaia DR2 2132326747070439296
Gaia DR3
Gaia DR3 2132326747070439296
System
Kepler-1712
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 13.81 Earth days (3.8% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0903 AU.
Transit Fingerprint
Depth
0.108 %
Duration
2.324 h
Impact parameter b
0.900
Rp / R★
0.034399
Transit midpoint (BJD)
2,455,014.1255
Photometric dip
Transit produces a flux drop of 1,075 ppm lasting ≈ 2.32 h.
Extended Orbital Architecture
Planet / star radius ratio
0.034399
Semi-major axis / stellar radius
22.700
Impact parameter (b)
0.900
Transit mid-time (BJD)
2,455,014.1255
Angular separation (arcsec)
0.57800
Eq. Temperature
391K
(118 °C)
Insolation (S⊕)
5.52
Earth = 1.00
Earth Similarity (ESI)
0.632
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
Valizadegan et al. 2022Instrument
Kepler CCD Array
Publication
2022-02
Observation locale
Space
Discovery cohort
Planets confirmed in 2021 at Kepler (12 shown).
Host System: Kepler-1712
Spectral Class
K-type orange
Effective Temperature
3,732 K — cooler than the Sun (5,778 K)
Estimated Age
1.03 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.509 R☉
Stellar Mass
0.515 M☉
Metallicity [Fe/H]
0.02
Extended Stellar Properties
Surface gravity (log g)
4.736 dex
Stellar density
1.660 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
6.371 mas
Total Proper Motion
20.093 mas/yr
PM Right Ascension
9.38 mas/yr
PM Declination
-17.77 mas/yr
Galactic Cartesian (pc)
x = 0.166 · y = -0.619 · z = 0.768
Equatorial (J2000)
RA 284.99870° · Dec 50.14669°
Galactic ℓ, b
80.239° · 19.194°
Ecliptic λ, β
302.276° · 71.908°
HTM-20 index
-479745564
Similar Worlds
K2-326 b
Sub-Neptune · K-type orange
Radius 2.28 R⊕ · 920.8 ly
Kepler-250 c
Sub-Neptune · K-type orange
Radius 2.28 R⊕ · 2,480.7 ly
Kepler-861 b
Sub-Neptune · K-type orange
Radius 2.28 R⊕ · 2,773.4 ly
Kepler-960 b
Sub-Neptune · K-type orange
Radius 2.29 R⊕ · 929.3 ly
Kepler-1503 b
Sub-Neptune · K-type orange
Radius 2.27 R⊕ · 3,997.3 ly
Kepler-306 e
Sub-Neptune · K-type orange
Radius 2.27 R⊕ · 2,529.9 ly