Key parameters at a glance
- A radius of 2.95 Earth radii
- A mass of 9.01 Earth masses
- Surface gravity around 1.04 g
- An orbital period of 125.597 days
- Semi-major axis 0.4880 AU
- Equilibrium temperature 360 K (87 °C)
- Distance from Earth 3,271.15 light-years
- Earth Similarity Index 0.611
- Travel time at Voyager 1 speed 57,686,709 years
1 sibling around Kepler-344
Kepler-344 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-344 b | Sub-Neptune | 2.61 | 7.32 | 21.964 | 643 | 2014 |
| Kepler-344 c this | Sub-Neptune | 2.95 | 9.01 | 125.597 | 360 | 2014 |
Kepler-344 c Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#557of 1978
top 28.1%
This planet
2.95R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-344 c | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 2.95 | 11.21 |
| Mass (M⊕) | 1.00 | 9.01 | 317.83 |
| Density (g/cm³) | 5.51 | 1.93 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.04 | 2.53 |
| Insolation (S⊕) | 1.00 | 2.67 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 63289452
Gaia DR2
Gaia DR2 2128263364414395136
Gaia DR3
Gaia DR3 2128263364414395136
System
Kepler-344
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 125.60 Earth days (34.4% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.4880 AU.
Transit Fingerprint
Depth
0.093 %
Duration
7.533 h
Impact parameter b
0.030
Rp / R★
0.027646
Transit midpoint (BJD)
2,455,048.4417
Photometric dip
Transit produces a flux drop of 926 ppm lasting ≈ 7.53 h.
Extended Orbital Architecture
Planet / star radius ratio
0.027646
Semi-major axis / stellar radius
138.520
Impact parameter (b)
0.030
Transit mid-time (BJD)
2,455,048.4417
Angular separation (arcsec)
0.48700
Eq. Temperature
360K
(87 °C)
Insolation (S⊕)
2.67
Earth = 1.00
Earth Similarity (ESI)
0.611
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — liquid water is physically possible with adequate atmospheric pressure.
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-344
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,774 K — cooler than the Sun (5,778 K)
Estimated Age
2.51 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.976 R☉
Stellar Mass
0.931 M☉
Metallicity [Fe/H]
0.04
Extended Stellar Properties
Surface gravity (log g)
4.451 dex
Stellar density
1.440 g/cm³
Metallicity ratio
[M/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
0.969 mas
Total Proper Motion
14.860 mas/yr
PM Right Ascension
-3.53 mas/yr
PM Declination
-14.44 mas/yr
Galactic Cartesian (pc)
x = 0.264 · y = -0.638 · z = 0.723
Equatorial (J2000)
RA 292.49961° · Dec 46.32434°
Galactic ℓ, b
78.581° · 13.113°
Ecliptic λ, β
311.595° · 66.544°
HTM-20 index
-962640268
Similar Worlds
Kepler-154 c
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.95 R⊕ · 2,985.0 ly
Kepler-219 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.95 R⊕ · 2,567.1 ly
TOI-1751 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.95 R⊕ · 369.6 ly
Kepler-1757 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.95 R⊕ · 2,633.1 ly
K2-372 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.95 R⊕ · 1,513.0 ly
Kepler-1889 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.94 R⊕ · 4,550.3 ly