Key parameters at a glance
- A radius of 1.77 Earth radii
- A mass of 3.78 Earth masses
- Surface gravity around 1.21 g
- An orbital period of 29.221 days
- Semi-major axis 0.1760 AU
- Equilibrium temperature 539 K (266 °C)
- Distance from Earth 4,001.44 light-years
- Earth Similarity Index 0.525
- Travel time at Voyager 1 speed 70,565,477 years
3 siblings around Kepler-286
Kepler-286 e 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-286 b | Rocky Terrestrial | 1.24 | 2.07 | 1.796 | 1,367 | 2014 |
| Kepler-286 c | Super-Earth | 1.37 | 2.45 | 3.468 | 1,098 | 2014 |
| Kepler-286 d | Super-Earth | 1.33 | 2.33 | 5.914 | 919 | 2014 |
| Kepler-286 e this | Super-Earth | 1.77 | 3.78 | 29.221 | 539 | 2014 |
Kepler-286 e Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#293of 1176
top 24.8%
This planet
1.77R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-286 e | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.77 | 11.21 |
| Mass (M⊕) | 1.00 | 3.78 | 317.83 |
| Density (g/cm³) | 5.51 | 3.75 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.21 | 2.53 |
| Insolation (S⊕) | 1.00 | 20.60 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 290035455
Gaia DR2
Gaia DR2 2129503716608032256
Gaia DR3
Gaia DR3 2129503716608032256
System
Kepler-286
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 29.22 Earth days (8.0% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1760 AU.
Transit Fingerprint
Depth
0.039 %
Duration
3.930 h
Impact parameter b
0.640
Rp / R★
0.018086
Transit midpoint (BJD)
2,454,972.3302
Photometric dip
Transit produces a flux drop of 394 ppm lasting ≈ 3.93 h.
Extended Orbital Architecture
Planet / star radius ratio
0.018086
Semi-major axis / stellar radius
58.140
Impact parameter (b)
0.640
Transit mid-time (BJD)
2,454,972.3302
Angular separation (arcsec)
0.14300
Eq. Temperature
539K
(266 °C)
Insolation (S⊕)
20.60
Earth = 1.00
Earth Similarity (ESI)
0.525
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-286
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,580 K — cooler than the Sun (5,778 K)
Estimated Age
2.75 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.863 R☉
Stellar Mass
0.830 M☉
Metallicity [Fe/H]
-0.25
Extended Stellar Properties
Surface gravity (log g)
4.495 dex
Stellar density
1.450 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
0.789 mas
Total Proper Motion
2.268 mas/yr
PM Right Ascension
1.00 mas/yr
PM Declination
2.04 mas/yr
Galactic Cartesian (pc)
x = 0.235 · y = -0.622 · z = 0.747
Equatorial (J2000)
RA 290.67619° · Dec 48.29424°
Galactic ℓ, b
79.886° · 15.064°
Ecliptic λ, β
310.591° · 68.838°
HTM-20 index
-343373937
Similar Worlds
Kepler-822 b
Super-Earth · G-type yellow (Sun-like)
Radius 1.77 R⊕ · 2,806.2 ly
Kepler-82 d
Super-Earth · G-type yellow (Sun-like)
Radius 1.77 R⊕ · 2,949.5 ly
rho CrB e
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Kepler-294 b
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Kepler-321 b
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Kepler-1260 b
Super-Earth · G-type yellow (Sun-like)
Radius 1.77 R⊕ · 5,656.9 ly