Key parameters at a glance
- A radius of 3.41 Earth radii
- A mass of 11.50 Earth masses
- Surface gravity around 0.99 g
- An orbital period of 90.411 days
- Semi-major axis 0.4024 AU
- Equilibrium temperature 413 K (140 °C)
- Distance from Earth 3,084.70 light-years
- Earth Similarity Index 0.515
- Travel time at Voyager 1 speed 54,398,715 years
2 siblings around Kepler-616
Kepler-616 c shares its host star with 2 other confirmed planets. Side-by-side measurements below.
| Planet | Type | Radius (R⊕) | Mass (M⊕) | Period (d) | Eq. T (K) | Year |
|---|---|---|---|---|---|---|
| Kepler-616 b | Sub-Neptune | 2.43 | 6.48 | 9.998 | 860 | 2016 |
| Kepler-616 d | Sub-Neptune | 2.65 | 7.52 | 51.067 | 499 | 2021 |
| Kepler-616 c this | Sub-Neptune | 3.41 | 11.50 | 90.411 | 413 | 2016 |
Kepler-616 c Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#213of 1978
top 10.7%
This planet
3.41R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-616 c | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 3.41 | 11.21 |
| Mass (M⊕) | 1.00 | 11.50 | 317.83 |
| Density (g/cm³) | 5.51 | 1.59 | 1.33 |
| Surface Gravity (g) | 1.00 | 0.99 | 2.53 |
| Insolation (S⊕) | 1.00 | 6.86 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 271355361
Gaia DR2
Gaia DR2 2080484842545877120
Gaia DR3
Gaia DR3 2080484842545877120
System
Kepler-616
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 90.41 Earth days (24.8% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.4024 AU.
Transit Fingerprint
Depth
0.119 %
Duration
6.523 h
Impact parameter b
0.199
Rp / R★
0.031558
Transit midpoint (BJD)
2,455,041.5040
Photometric dip
Transit produces a flux drop of 1,187 ppm lasting ≈ 6.52 h.
Extended Orbital Architecture
Planet / star radius ratio
0.031558
Semi-major axis / stellar radius
107.200
Impact parameter (b)
0.199
Transit mid-time (BJD)
2,455,041.5040
Angular separation (arcsec)
0.42500
Eq. Temperature
413K
(140 °C)
Insolation (S⊕)
6.86
Earth = 1.00
Earth Similarity (ESI)
0.515
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
Morton et al. 2016Instrument
Kepler CCD Array
Publication
2016-05
Observation locale
Space
Discovery cohort
Planets confirmed in 2016 at Kepler (12 shown).
Host System: Kepler-616
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,753 K — cooler than the Sun (5,778 K)
Estimated Age
3.89 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.970 R☉
Stellar Mass
0.980 M☉
Metallicity [Fe/H]
-0.02
Extended Stellar Properties
Surface gravity (log g)
4.460 dex
Stellar density
2.447 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 15 bands
Astrometric Data
Parallax
1.029 mas
Total Proper Motion
9.478 mas/yr
PM Right Ascension
-1.70 mas/yr
PM Declination
-9.32 mas/yr
Galactic Cartesian (pc)
x = 0.289 · y = -0.620 · z = 0.729
Equatorial (J2000)
RA 294.98914° · Dec 46.83831°
Galactic ℓ, b
79.834° · 11.811°
Ecliptic λ, β
316.032° · 66.329°
HTM-20 index
-1132860512
Similar Worlds
HD 191939 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 3.41 R⊕ · 174.8 ly
TOI-469.01
Sub-Neptune · G-type yellow (Sun-like)
Radius 3.41 R⊕ · 222.4 ly
Kepler-711 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 3.41 R⊕ · 2,037.1 ly
Kepler-95 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 3.42 R⊕ · 1,453.5 ly
TOI-132 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 3.42 R⊕ · 533.8 ly
HIP 9618 c
Sub-Neptune · G-type yellow (Sun-like)
Radius 3.43 R⊕ · 220.3 ly