Key parameters at a glance
- A radius of 3.58 Earth radii
- A mass of 12.50 Earth masses
- Surface gravity around 0.98 g
- An orbital period of 22.715 days
- Semi-major axis 0.1650 AU
- Equilibrium temperature 766 K (493 °C)
- Distance from Earth 2,567.08 light-years
- Earth Similarity Index 0.286
- Travel time at Voyager 1 speed 45,270,383 years
2 siblings around Kepler-219
Kepler-219 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-219 b | Sub-Neptune | 2.95 | 9.01 | 4.586 | 1,307 | 2014 |
| Kepler-219 c this | Sub-Neptune | 3.58 | 12.50 | 22.715 | 766 | 2014 |
| Kepler-219 d | Sub-Neptune | 2.81 | 19.10 | 47.904 | 598 | 2014 |
Kepler-219 c Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#144of 1978
top 7.2%
This planet
3.58R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-219 c | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 3.58 | 11.21 |
| Mass (M⊕) | 1.00 | 12.50 | 317.83 |
| Density (g/cm³) | 5.51 | 1.50 | 1.33 |
| Surface Gravity (g) | 1.00 | 0.98 | 2.53 |
| Insolation (S⊕) | 1.00 | 54.11 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 158838045
Gaia DR2
Gaia DR2 2127771917075703424
Gaia DR3
Gaia DR3 2127771917075703424
System
Kepler-219
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 22.71 Earth days (6.2% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1650 AU.
Transit Fingerprint
Depth
0.057 %
Duration
5.808 h
Impact parameter b
0.010
Rp / R★
0.021420
Transit midpoint (BJD)
2,454,980.2911
Photometric dip
Transit produces a flux drop of 569 ppm lasting ≈ 5.81 h.
Extended Orbital Architecture
Planet / star radius ratio
0.021420
Semi-major axis / stellar radius
29.400
Impact parameter (b)
0.010
Transit mid-time (BJD)
2,454,980.2911
Angular separation (arcsec)
0.21000
Eq. Temperature
766K
(493 °C)
Insolation (S⊕)
54.11
Earth = 1.00
Earth Similarity (ESI)
0.286
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-219
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,786 K — hotter than the Sun (5,778 K)
Estimated Age
4.00 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
1.491 R☉
Stellar Mass
1.164 M☉
Metallicity [Fe/H]
0.36
Extended Stellar Properties
Surface gravity (log g)
4.157 dex
Stellar density
0.750 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.242 mas
Total Proper Motion
3.151 mas/yr
PM Right Ascension
-1.34 mas/yr
PM Declination
2.85 mas/yr
Galactic Cartesian (pc)
x = 0.220 · y = -0.649 · z = 0.729
Equatorial (J2000)
RA 288.73895° · Dec 46.76259°
Galactic ℓ, b
77.888° · 15.649°
Ecliptic λ, β
305.773° · 67.888°
HTM-20 index
1856032945
Similar Worlds
Kepler-729 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 3.58 R⊕ · 6,265.9 ly
Kepler-104 d
Sub-Neptune · G-type yellow (Sun-like)
Radius 3.58 R⊕ · 1,307.2 ly
K2-217 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 3.58 R⊕ · 1,245.5 ly
Kepler-734 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 3.56 R⊕ · 3,774.3 ly
Kepler-148 c
Sub-Neptune · G-type yellow (Sun-like)
Radius 3.60 R⊕ · 2,580.4 ly
Kepler-119 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 3.60 R⊕ · 2,289.6 ly