Key parameters at a glance
- A radius of 1.41 Earth radii
- A mass of 2.57 Earth masses
- Surface gravity around 1.29 g
- An orbital period of 14.872 days
- Semi-major axis 0.0940 AU
- Equilibrium temperature 391 K (118 °C)
- Distance from Earth 697.97 light-years
- Earth Similarity Index 0.743
- Travel time at Voyager 1 speed 12,308,768 years
- Almost certainly tidally locked to its host star given the close orbit
1 sibling around Kepler-369
Kepler-369 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-369 b | Rocky Terrestrial | 1.13 | 1.51 | 2.733 | 687 | 2014 |
| Kepler-369 c this | Super-Earth | 1.41 | 2.57 | 14.872 | 391 | 2014 |
Kepler-369 c Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#902of 1176
top 76.6%
This planet
1.41R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-369 c | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.41 | 11.21 |
| Mass (M⊕) | 1.00 | 2.57 | 317.83 |
| Density (g/cm³) | 5.51 | 5.04 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.29 | 2.53 |
| Insolation (S⊕) | 1.00 | 4.21 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 26961231
Gaia DR2
Gaia DR2 2128835935094128512
Gaia DR3
Gaia DR3 2128835935094128512
System
Kepler-369
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 14.87 Earth days (4.1% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0940 AU.
Transit Fingerprint
Depth
0.094 %
Duration
2.427 h
Impact parameter b
0.010
Rp / R★
0.027799
Transit midpoint (BJD)
2,454,970.6911
Photometric dip
Transit produces a flux drop of 945 ppm lasting ≈ 2.43 h.
Extended Orbital Architecture
Planet / star radius ratio
0.027799
Semi-major axis / stellar radius
48.500
Impact parameter (b)
0.010
Transit mid-time (BJD)
2,454,970.6911
Angular separation (arcsec)
0.43900
Eq. Temperature
391K
(118 °C)
Insolation (S⊕)
4.21
Earth = 1.00
Earth Similarity (ESI)
0.743
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
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-369
Spectral Class
M-type red dwarf
Effective Temperature
3,591 K — cooler than the Sun (5,778 K)
Estimated Age
4.17 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.471 R☉
Stellar Mass
0.500 M☉
Metallicity [Fe/H]
-0.09
Extended Stellar Properties
Surface gravity (log g)
4.785 dex
Stellar density
4.327 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
3.841 mas
Total Proper Motion
21.383 mas/yr
PM Right Ascension
17.95 mas/yr
PM Declination
11.62 mas/yr
Galactic Cartesian (pc)
x = 0.269 · y = -0.614 · z = 0.742
Equatorial (J2000)
RA 293.67433° · Dec 47.90847°
Galactic ℓ, b
80.403° · 13.087°
Ecliptic λ, β
315.113° · 67.674°
HTM-20 index
-1777016771
Similar Worlds
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TOI-5489 b
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