Key parameters at a glance
- A radius of 1.40 Earth radii
- A mass of 2.54 Earth masses
- Surface gravity around 1.30 g
- An orbital period of 7.416 days
- Semi-major axis 0.0610 AU
- Equilibrium temperature 547 K (274 °C)
- Distance from Earth 1,434.17 light-years
- Earth Similarity Index 0.558
- Travel time at Voyager 1 speed 25,291,585 years
- Almost certainly tidally locked to its host star given the close orbit
1 sibling around Kepler-329
Kepler-329 b 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-329 b this | Super-Earth | 1.40 | 2.54 | 7.416 | 547 | 2014 |
| Kepler-329 c | Super-Earth | 1.93 | 4.38 | 18.685 | 402 | 2014 |
Kepler-329 b Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#923of 1176
top 78.4%
This planet
1.40R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-329 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.40 | 11.21 |
| Mass (M⊕) | 1.00 | 2.54 | 317.83 |
| Density (g/cm³) | 5.51 | 5.09 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.30 | 2.53 |
| Insolation (S⊕) | 1.00 | 40.69 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 268713285
Gaia DR2
Gaia DR2 2079224424266279936
Gaia DR3
Gaia DR3 2079224424266279936
System
Kepler-329
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 7.42 Earth days (2.0% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0610 AU.
Transit Fingerprint
Depth
0.051 %
Duration
2.168 h
Impact parameter b
0.890
Rp / R★
0.020845
Transit midpoint (BJD)
2,454,968.8534
Photometric dip
Transit produces a flux drop of 506 ppm lasting ≈ 2.17 h.
Extended Orbital Architecture
Planet / star radius ratio
0.020845
Semi-major axis / stellar radius
8.600
Impact parameter (b)
0.890
Transit mid-time (BJD)
2,454,968.8534
Angular separation (arcsec)
0.13900
Eq. Temperature
547K
(274 °C)
Insolation (S⊕)
40.69
Earth = 1.00
Earth Similarity (ESI)
0.558
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-329
Spectral Class
K-type orange
Effective Temperature
4,257 K — cooler than the Sun (5,778 K)
Estimated Age
3.47 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.523 R☉
Stellar Mass
0.602 M☉
Metallicity [Fe/H]
-0.44
Extended Stellar Properties
Surface gravity (log g)
4.740 dex
Stellar density
2.468 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
2.246 mas
Total Proper Motion
42.261 mas/yr
PM Right Ascension
24.75 mas/yr
PM Declination
-34.26 mas/yr
Galactic Cartesian (pc)
x = 0.344 · y = -0.614 · z = 0.710
Equatorial (J2000)
RA 299.26816° · Dec 45.22729°
Galactic ℓ, b
79.854° · 8.432°
Ecliptic λ, β
320.749° · 63.600°
HTM-20 index
-2016330453
Similar Worlds
Kepler-1301 b
Super-Earth · K-type orange
Radius 1.40 R⊕ · 2,786.3 ly
K2-85 b
Super-Earth · K-type orange
Radius 1.40 R⊕ · 317.1 ly
Kepler-1229 b
Super-Earth · K-type orange
Radius 1.40 R⊕ · 865.9 ly
Kepler-326 c
Super-Earth · K-type orange
Radius 1.40 R⊕ · 1,590.6 ly
Kepler-1145 b
Super-Earth · K-type orange
Radius 1.40 R⊕ · 2,256.9 ly
Kepler-716 c
Super-Earth · K-type orange
Radius 1.39 R⊕ · 2,071.1 ly