Key parameters at a glance
- A radius of 2.24 Earth radii
- A mass of 5.65 Earth masses
- Surface gravity around 1.13 g
- An orbital period of 13.722 days
- Semi-major axis 0.0940 AU
- Equilibrium temperature 779 K (506 °C)
- Distance from Earth 2,382.98 light-years
- Earth Similarity Index 0.339
- Travel time at Voyager 1 speed 42,023,802 years
1 sibling around Kepler-69
Kepler-69 b shares its host star with 1 other confirmed planet. Side-by-side measurements below.
| Planet | Type | Radius (R⊕) | Mass (M⊕) | Period (d) | Eq. T (K) | Year |
|---|---|---|---|---|---|---|
| Kepler-69 b this | Sub-Neptune | 2.24 | 5.65 | 13.722 | 779 | 2013 |
| Kepler-69 c | Super-Earth | 1.71 | 3.57 | 242.461 | 299 | 2013 |
Kepler-69 b Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#1607of 1978
top 81.2%
This planet
2.24R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-69 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 2.24 | 11.21 |
| Mass (M⊕) | 1.00 | 5.65 | 317.83 |
| Density (g/cm³) | 5.51 | 2.76 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.13 | 2.53 |
| Insolation (S⊕) | 1.00 | 123.52 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 275573429
Gaia DR2
Gaia DR2 2126436800722944000
Gaia DR3
Gaia DR3 2126436800722944000
System
Kepler-69
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 13.72 Earth days (3.8% of a terrestrial year) on a mildly elliptical path at a mean orbital distance of 0.0940 AU.
Transit Fingerprint
Depth
0.060 %
Duration
5.126 h
Impact parameter b
0.150
Rp / R★
0.022070
Transit midpoint (BJD)
2,454,970.8414
Photometric dip
Transit produces a flux drop of 597 ppm lasting ≈ 5.13 h.
Extended Orbital Architecture
Planet / star radius ratio
0.022070
Semi-major axis / stellar radius
21.800
Impact parameter (b)
0.150
Transit mid-time (BJD)
2,454,970.8414
Angular separation (arcsec)
0.12900
Eq. Temperature
779K
(506 °C)
Insolation (S⊕)
123.52
Earth = 1.00
Earth Similarity (ESI)
0.339
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
Barclay et al. 2013Instrument
Kepler CCD Array
Publication
2013-05
Observation locale
Space
Discovery cohort
Planets confirmed in 2013 at Kepler (12 shown).
Host System: Kepler-69
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,638 K — cooler than the Sun (5,778 K)
Estimated Age
13.18 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
0.930 R☉
Stellar Mass
0.810 M☉
Metallicity [Fe/H]
-0.29
Extended Stellar Properties
Surface gravity (log g)
4.400 dex
Stellar density
1.370 g/cm³
Systemic radial velocity
-38.70 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.340 mas
Total Proper Motion
11.796 mas/yr
PM Right Ascension
-9.70 mas/yr
PM Declination
-6.71 mas/yr
Galactic Cartesian (pc)
x = 0.280 · y = -0.651 · z = 0.705
Equatorial (J2000)
RA 293.26090° · Dec 44.86887°
Galactic ℓ, b
77.482° · 11.994°
Ecliptic λ, β
311.460° · 64.995°
HTM-20 index
-1824808970
Similar Worlds
Kepler-157 c
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.24 R⊕ · 2,523.5 ly
HD 134606 f
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.24 R⊕ · 87.4 ly
Kepler-284 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.24 R⊕ · 3,365.8 ly
Kepler-556 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.24 R⊕ · 2,200.2 ly
Kepler-439 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.24 R⊕ · 2,469.2 ly
Kepler-534 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.24 R⊕ · 1,861.2 ly