Key parameters at a glance
- A radius of 3.72 Earth radii
- A mass of 5.90 Earth masses
- Surface gravity around 0.43 g
- An orbital period of 27.403 days
- Semi-major axis 0.1870 AU
- Equilibrium temperature 734 K (461 °C)
- Distance from Earth 3,329.14 light-years
- Earth Similarity Index 0.254
- Travel time at Voyager 1 speed 58,709,372 years
3 siblings around Kepler-79
Kepler-79 c shares its host star with 3 other confirmed planets. Side-by-side measurements below.
| Planet | Type | Radius (R⊕) | Mass (M⊕) | Period (d) | Eq. T (K) | Year |
|---|---|---|---|---|---|---|
| Kepler-79 b | Sub-Neptune | 3.47 | 10.90 | 13.485 | 929 | 2012 |
| Kepler-79 c this | Sub-Neptune | 3.72 | 5.90 | 27.403 | 734 | 2012 |
| Kepler-79 d | Neptune-like | 7.16 | 6.00 | 52.090 | 592 | 2014 |
| Kepler-79 e | Sub-Neptune | 3.49 | 4.10 | 81.066 | 511 | 2014 |
Kepler-79 c Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#81of 1978
top 4.0%
This planet
3.72R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-79 c | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 3.72 | 11.21 |
| Mass (M⊕) | 1.00 | 5.90 | 317.83 |
| Density (g/cm³) | 5.51 | 0.62 | 1.33 |
| Surface Gravity (g) | 1.00 | 0.43 | 2.53 |
| Insolation (S⊕) | 1.00 | 79.77 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 5.900 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 239306681
Gaia DR2
Gaia DR2 2076085318570299136
Gaia DR3
Gaia DR3 2076085318570299136
System
Kepler-79
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 27.40 Earth days (7.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1870 AU.
Transit Fingerprint
Depth
0.079 %
Duration
6.849 h
Impact parameter b
0.278
Rp / R★
0.026180
Transit midpoint (BJD)
2,455,706.4750
Photometric dip
Transit produces a flux drop of 790 ppm lasting ≈ 6.85 h.
Extended Orbital Architecture
Planet / star radius ratio
0.026180
Semi-major axis / stellar radius
30.900
Impact parameter (b)
0.278
Transit mid-time (BJD)
2,455,706.4750
Angular separation (arcsec)
0.18300
Eq. Temperature
734K
(461 °C)
Insolation (S⊕)
79.77
Earth = 1.00
Earth Similarity (ESI)
0.254
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water.
Detection Signatures
Transit photometry
A transit dip has been observed from at least one telescope.
Transit timing variations
Gravitational interactions from neighbours have been detected.
Discovery Paper
Discovery cohort
Planets confirmed in 2012 at Kepler (12 shown).
Host System: Kepler-79
Spectral Class
F-type yellow-white
Effective Temperature
6,174 K — hotter than the Sun (5,778 K)
Estimated Age
3.44 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
1.302 R☉
Stellar Mass
1.165 M☉
Metallicity [Fe/H]
-0.07
Extended Stellar Properties
Surface gravity (log g)
4.274 dex
Stellar density
0.741 g/cm³
Metallicity ratio
[M/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
0.951 mas
Total Proper Motion
4.102 mas/yr
PM Right Ascension
-0.11 mas/yr
PM Declination
-4.10 mas/yr
Galactic Cartesian (pc)
x = 0.363 · y = -0.616 · z = 0.699
Equatorial (J2000)
RA 300.51711° · Dec 44.38155°
Galactic ℓ, b
79.579° · 7.238°
Ecliptic λ, β
321.691° · 62.452°
HTM-20 index
-1670122421
Similar Worlds
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Sub-Neptune · F-type yellow-white
Radius 3.72 R⊕ · 5,125.4 ly
Kepler-627 b
Sub-Neptune · F-type yellow-white
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Kepler-234 b
Sub-Neptune · F-type yellow-white
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DMPP-6 c
Sub-Neptune · F-type yellow-white
Radius 3.74 R⊕ · 178.2 ly
Kepler-873 b
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K2-10 b
Sub-Neptune · F-type yellow-white
Radius 3.77 R⊕ · 888.3 ly