Key parameters at a glance
- A radius of 1.57 Earth radii
- A mass of 6.80 Earth masses
- Surface gravity around 2.76 g
- An orbital period of 3.554 days
- Semi-major axis 0.0458 AU
- Equilibrium temperature 1,431 K (1158 °C)
- Distance from Earth 1,483.63 light-years
- Earth Similarity Index 0.179
- Travel time at Voyager 1 speed 26,163,782 years
1 sibling around Kepler-323
Kepler-323 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-323 b | Super-Earth | 1.38 | 3.90 | 1.678 | 1,838 | 2014 |
| Kepler-323 c this | Super-Earth | 1.57 | 6.80 | 3.554 | 1,431 | 2014 |
Kepler-323 c Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#618of 1176
top 52.5%
This planet
1.57R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-323 c | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.57 | 11.21 |
| Mass (M⊕) | 1.00 | 6.80 | 317.83 |
| Density (g/cm³) | 5.51 | 9.60 | 1.33 |
| Surface Gravity (g) | 1.00 | 2.76 | 2.53 |
| Insolation (S⊕) | 1.00 | 700.00 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 6.800 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 137150039
Gaia DR2
Gaia DR2 2052582432887909376
Gaia DR3
Gaia DR3 2052582432887909376
System
Kepler-323
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 3.55 Earth days (1.0% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0458 AU.
Transit Fingerprint
Depth
0.019 %
Duration
3.103 h
Impact parameter b
0.692
Rp / R★
0.013370
Transit midpoint (BJD)
2,454,956.9823
Photometric dip
Transit produces a flux drop of 192 ppm lasting ≈ 3.10 h.
Extended Orbital Architecture
Planet / star radius ratio
0.013370
Semi-major axis / stellar radius
8.872
Impact parameter (b)
0.692
RV semi-amplitude (K)
2.800 m/s
Transit mid-time (BJD)
2,454,956.9823
Angular separation (arcsec)
0.10100
Eq. Temperature
1,431K
(1158 °C)
Insolation (S⊕)
700.00
Earth = 1.00
Earth Similarity (ESI)
0.179
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.
Detection Signatures
Transit photometry
A transit dip has been observed from at least one telescope.
Radial velocity
Stellar wobble has been measured spectroscopically.
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-323
Spectral Class
F-type yellow-white
Effective Temperature
6,004 K — hotter than the Sun (5,778 K)
Estimated Age
5.40 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
1.120 R☉
Stellar Mass
1.015 M☉
Metallicity [Fe/H]
-0.14
Extended Stellar Properties
Surface gravity (log g)
4.380 dex
Stellar density
0.740 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 17 bands
Astrometric Data
Parallax
2.170 mas
Total Proper Motion
12.306 mas/yr
PM Right Ascension
12.01 mas/yr
PM Declination
-2.70 mas/yr
Galactic Cartesian (pc)
x = 0.287 · y = -0.732 · z = 0.617
Equatorial (J2000)
RA 291.38230° · Dec 38.12746°
Galactic ℓ, b
70.696° · 10.240°
Ecliptic λ, β
303.918° · 59.074°
HTM-20 index
1988392611
Similar Worlds
K2-269 b
Super-Earth · F-type yellow-white
Radius 1.57 R⊕ · 1,176.6 ly
Kepler-356 b
Super-Earth · F-type yellow-white
Radius 1.57 R⊕ · 2,307.7 ly
Kepler-1181 b
Super-Earth · F-type yellow-white
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Kepler-1072 b
Super-Earth · F-type yellow-white
Radius 1.58 R⊕ · 3,205.2 ly
Kepler-402 c
Super-Earth · F-type yellow-white
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Kepler-126 c
Super-Earth · F-type yellow-white
Radius 1.58 R⊕ · 774.3 ly