Key parameters at a glance
- A radius of 7.16 Earth radii
- A mass of 6.00 Earth masses
- Surface gravity around 0.12 g
- An orbital period of 52.090 days
- Semi-major axis 0.2870 AU
- Equilibrium temperature 592 K (319 °C)
- Distance from Earth 3,329.14 light-years
- Earth Similarity Index 0.179
- Travel time at Voyager 1 speed 58,709,372 years
3 siblings around Kepler-79
Kepler-79 d 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 | Sub-Neptune | 3.72 | 5.90 | 27.403 | 734 | 2012 |
| Kepler-79 d this | 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 d Planet Profile
Physical Specs
Classification
Planet Type
Neptune-like
Discovery
Size rank in cohort
Rank by radius
#192of 574
top 33.3%
This planet
7.16R⊕
Neptune-like median
6.39R⊕
Nearest-size peers
| Metric | Earth | Kepler-79 d | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 7.16 | 11.21 |
| Mass (M⊕) | 1.00 | 6.00 | 317.83 |
| Density (g/cm³) | 5.51 | 0.09 | 1.33 |
| Surface Gravity (g) | 1.00 | 0.12 | 2.53 |
| Insolation (S⊕) | 1.00 | 33.87 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 6.000 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 Neptune-like cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 52.09 Earth days (14.3% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.2870 AU.
Transit Fingerprint
Depth
0.297 %
Duration
8.633 h
Impact parameter b
0.056
Rp / R★
0.050380
Transit midpoint (BJD)
2,455,721.0110
Photometric dip
Transit produces a flux drop of 2,968 ppm lasting ≈ 8.63 h.
Extended Orbital Architecture
Planet / star radius ratio
0.050380
Semi-major axis / stellar radius
47.420
Impact parameter (b)
0.056
Transit mid-time (BJD)
2,455,721.0110
Angular separation (arcsec)
0.28100
Eq. Temperature
592K
(319 °C)
Insolation (S⊕)
33.87
Earth = 1.00
Earth Similarity (ESI)
0.179
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
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-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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Neptune-like · F-type yellow-white
Radius 7.16 R⊕ · 1,582.6 ly
TOI-257 b
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Kepler-1085 b
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HD 151450 b
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