Key parameters at a glance
- A radius of 2.00 Earth radii
- A mass of 4.66 Earth masses
- Surface gravity around 1.17 g
- An orbital period of 6.400 days
- Semi-major axis 0.0640 AU
- Equilibrium temperature 810 K (537 °C)
- Distance from Earth 1,975.46 light-years
- Earth Similarity Index 0.339
- Travel time at Voyager 1 speed 34,837,264 years
1 sibling around Kepler-179
Kepler-179 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-179 b | Super-Earth | 1.64 | 3.33 | 2.736 | 1,075 | 2014 |
| Kepler-179 c this | Sub-Neptune | 2.00 | 4.66 | 6.400 | 810 | 2014 |
Kepler-179 c Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#1955of 1978
top 98.8%
This planet
2.00R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-179 c | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 2.00 | 11.21 |
| Mass (M⊕) | 1.00 | 4.66 | 317.83 |
| Density (g/cm³) | 5.51 | 3.20 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.17 | 2.53 |
| Insolation (S⊕) | 1.00 | 115.98 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 268057162
Gaia DR2
Gaia DR2 2086468453545432960
Gaia DR3
Gaia DR3 2086468453545432960
System
Kepler-179
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 6.40 Earth days (1.8% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0640 AU.
Transit Fingerprint
Depth
0.074 %
Duration
1.842 h
Impact parameter b
0.030
Rp / R★
0.027207
Transit midpoint (BJD)
2,455,007.0234
Photometric dip
Transit produces a flux drop of 743 ppm lasting ≈ 1.84 h.
Extended Orbital Architecture
Planet / star radius ratio
0.027207
Semi-major axis / stellar radius
11.700
Impact parameter (b)
0.030
Transit mid-time (BJD)
2,455,007.0234
Angular separation (arcsec)
0.10600
Eq. Temperature
810K
(537 °C)
Insolation (S⊕)
115.98
Earth = 1.00
Earth Similarity (ESI)
0.339
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-179
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,302 K — cooler than the Sun (5,778 K)
Estimated Age
1.74 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.759 R☉
Stellar Mass
0.893 M☉
Metallicity [Fe/H]
0.12
Extended Stellar Properties
Surface gravity (log g)
4.613 dex
Stellar density
1.640 g/cm³
Systemic radial velocity
-32.82 km/s
Rotational v·sin i
3.00 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.622 mas
Total Proper Motion
26.554 mas/yr
PM Right Ascension
-18.50 mas/yr
PM Declination
-19.05 mas/yr
Galactic Cartesian (pc)
x = 0.322 · y = -0.590 · z = 0.740
Equatorial (J2000)
RA 298.66362° · Dec 47.76193°
Galactic ℓ, b
81.868° · 10.059°
Ecliptic λ, β
322.580° · 66.048°
HTM-20 index
147371196
Similar Worlds
Kepler-579 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.00 R⊕ · 1,731.1 ly
Kepler-238 f
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.00 R⊕ · 5,866.7 ly
Kepler-134 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.00 R⊕ · 1,092.0 ly
Kepler-578 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.00 R⊕ · 1,765.9 ly
Kepler-18 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.00 R⊕ · 1,412.4 ly
Kepler-280 c
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.01 R⊕ · 2,545.2 ly