Key parameters at a glance
- A radius of 1.91 Earth radii
- A mass of 4.31 Earth masses
- Surface gravity around 1.18 g
- An orbital period of 19.023 days
- Semi-major axis 0.1400 AU
- Equilibrium temperature 647 K (374 °C)
- Distance from Earth 3,809.31 light-years
- Earth Similarity Index 0.431
- Travel time at Voyager 1 speed 67,177,114 years
1 sibling around Kepler-370
Kepler-370 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-370 b | Super-Earth | 1.59 | 3.15 | 4.580 | 1,040 | 2014 |
| Kepler-370 c this | Super-Earth | 1.91 | 4.31 | 19.023 | 647 | 2014 |
Kepler-370 c Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#114of 1176
top 9.6%
This planet
1.91R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-370 c | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.91 | 11.21 |
| Mass (M⊕) | 1.00 | 4.31 | 317.83 |
| Density (g/cm³) | 5.51 | 3.40 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.18 | 2.53 |
| Insolation (S⊕) | 1.00 | 54.20 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 137411225
Gaia DR2
Gaia DR2 2053578521704124160
Gaia DR3
Gaia DR3 2053578521704124160
System
Kepler-370
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 19.02 Earth days (5.2% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1400 AU.
Transit Fingerprint
Depth
0.040 %
Duration
3.418 h
Impact parameter b
0.350
Rp / R★
0.019570
Transit midpoint (BJD)
2,454,972.6616
Photometric dip
Transit produces a flux drop of 402 ppm lasting ≈ 3.42 h.
Extended Orbital Architecture
Planet / star radius ratio
0.019570
Semi-major axis / stellar radius
25.700
Impact parameter (b)
0.350
Transit mid-time (BJD)
2,454,972.6616
Angular separation (arcsec)
0.12000
Eq. Temperature
647K
(374 °C)
Insolation (S⊕)
54.20
Earth = 1.00
Earth Similarity (ESI)
0.431
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-370
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,852 K — hotter than the Sun (5,778 K)
Estimated Age
6.03 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
0.900 R☉
Stellar Mass
0.982 M☉
Metallicity [Fe/H]
0.13
Extended Stellar Properties
Surface gravity (log g)
4.531 dex
Stellar density
0.930 g/cm³
Metallicity ratio
[M/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
0.828 mas
Total Proper Motion
17.718 mas/yr
PM Right Ascension
-11.45 mas/yr
PM Declination
-13.52 mas/yr
Galactic Cartesian (pc)
x = 0.285 · y = -0.700 · z = 0.655
Equatorial (J2000)
RA 292.17107° · Dec 40.91624°
Galactic ℓ, b
73.510° · 10.943°
Ecliptic λ, β
306.772° · 61.555°
HTM-20 index
1843226159
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