Key parameters at a glance
- A radius of 2.95 Earth radii
- A mass of 9.01 Earth masses
- Surface gravity around 1.04 g
- An orbital period of 4.586 days
- Semi-major axis 0.0570 AU
- Equilibrium temperature 1,307 K (1034 °C)
- Distance from Earth 2,567.08 light-years
- Earth Similarity Index 0.174
- Travel time at Voyager 1 speed 45,270,383 years
2 siblings around Kepler-219
Kepler-219 b 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 this | Sub-Neptune | 2.95 | 9.01 | 4.586 | 1,307 | 2014 |
| Kepler-219 c | 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 b Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#557of 1978
top 28.1%
This planet
2.95R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-219 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 2.95 | 11.21 |
| Mass (M⊕) | 1.00 | 9.01 | 317.83 |
| Density (g/cm³) | 5.51 | 1.93 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.04 | 2.53 |
| Insolation (S⊕) | 1.00 | 456.73 | 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 4.59 Earth days (1.3% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0570 AU.
Transit Fingerprint
Depth
0.040 %
Duration
3.272 h
Impact parameter b
0.030
Rp / R★
0.018179
Transit midpoint (BJD)
2,455,002.8568
Photometric dip
Transit produces a flux drop of 401 ppm lasting ≈ 3.27 h.
Extended Orbital Architecture
Planet / star radius ratio
0.018179
Semi-major axis / stellar radius
10.563
Impact parameter (b)
0.030
Transit mid-time (BJD)
2,455,002.8568
Angular separation (arcsec)
0.07240
Eq. Temperature
1,307K
(1034 °C)
Insolation (S⊕)
456.73
Earth = 1.00
Earth Similarity (ESI)
0.174
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.
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-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-344 c
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.95 R⊕ · 3,271.1 ly
Kepler-154 c
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.95 R⊕ · 2,985.0 ly
TOI-1751 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.95 R⊕ · 369.6 ly
Kepler-1757 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.95 R⊕ · 2,633.1 ly
K2-372 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.95 R⊕ · 1,513.0 ly
Kepler-1889 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.94 R⊕ · 4,550.3 ly