Key parameters at a glance
- A radius of 1.03 Earth radii
- A mass of 1.07 Earth masses
- Surface gravity around 1.01 g
- An orbital period of 1.116 days
- Semi-major axis 0.0210 AU
- Equilibrium temperature 1,659 K (1386 °C)
- Distance from Earth 975.55 light-years
- Earth Similarity Index 0.182
- Travel time at Voyager 1 speed 17,203,746 years
1 sibling around Kepler-1312
Kepler-1312 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-1312 c this | Rocky Terrestrial | 1.03 | 1.07 | 1.116 | 1,659 | 2021 |
| Kepler-1312 b | Sub-Neptune | 2.10 | 5.06 | 5.448 | 978 | 2016 |
Kepler-1312 c Planet Profile
Physical Specs
Classification
Planet Type
Rocky Terrestrial
Discovery
Size rank in cohort
Rank by radius
#310of 570
top 54.2%
This planet
1.03R⊕
Rocky Terrestrial median
1.01R⊕
Nearest-size peers
| Metric | Earth | Kepler-1312 c | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.03 | 11.21 |
| Mass (M⊕) | 1.00 | 1.07 | 317.83 |
| Density (g/cm³) | 5.51 | 5.42 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.01 | 2.53 |
| Insolation (S⊕) | 1.00 | 1,770.20 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 137899873
Gaia DR2
Gaia DR2 2053550106200274688
Gaia DR3
Gaia DR3 2053550106200274688
System
Kepler-1312
Percentile among Rocky Terrestrial cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 1.12 Earth days (0.3% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0210 AU.
Transit Fingerprint
Depth
0.011 %
Duration
1.358 h
Impact parameter b
0.057
Rp / R★
0.009827
Transit midpoint (BJD)
2,454,964.8456
Photometric dip
Transit produces a flux drop of 109 ppm lasting ≈ 1.36 h.
Extended Orbital Architecture
Planet / star radius ratio
0.009827
Semi-major axis / stellar radius
6.360
Impact parameter (b)
0.057
Transit mid-time (BJD)
2,454,964.8456
Angular separation (arcsec)
0.07030
Eq. Temperature
1,659K
(1386 °C)
Insolation (S⊕)
1,770.20
Earth = 1.00
Earth Similarity (ESI)
0.182
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.
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-1312
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,721 K — cooler than the Sun (5,778 K)
Estimated Age
0.89 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.905 R☉
Stellar Mass
0.983 M☉
Metallicity [Fe/H]
0.02
Extended Stellar Properties
Surface gravity (log g)
4.517 dex
Stellar density
1.962 g/cm³
Systemic radial velocity
-8.41 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
3.315 mas
Total Proper Motion
9.466 mas/yr
PM Right Ascension
8.29 mas/yr
PM Declination
-4.57 mas/yr
Galactic Cartesian (pc)
x = 0.294 · y = -0.694 · z = 0.657
Equatorial (J2000)
RA 292.97128° · Dec 41.03575°
Galactic ℓ, b
73.896° · 10.457°
Ecliptic λ, β
308.053° · 61.474°
HTM-20 index
1756856439
Similar Worlds
Kepler-1612 b
Rocky Terrestrial · G-type yellow (Sun-like)
Radius 1.03 R⊕ · 2,494.2 ly
Kepler-387 b
Rocky Terrestrial · G-type yellow (Sun-like)
Radius 1.03 R⊕ · 2,612.7 ly
Kepler-374 b
Rocky Terrestrial · G-type yellow (Sun-like)
Radius 1.03 R⊕ · 4,127.9 ly
Kepler-130 b
Rocky Terrestrial · G-type yellow (Sun-like)
Radius 1.02 R⊕ · 1,032.8 ly
Kepler-336 b
Rocky Terrestrial · G-type yellow (Sun-like)
Radius 1.02 R⊕ · 2,507.7 ly
Kepler-192 d
Rocky Terrestrial · G-type yellow (Sun-like)
Radius 1.02 R⊕ · 2,125.5 ly