Key parameters at a glance
- A radius of 1.66 Earth radii
- A mass of 3.39 Earth masses
- Surface gravity around 1.23 g
- An orbital period of 19.674 days
- Semi-major axis 0.1463 AU
- Equilibrium temperature 711 K (438 °C)
- Distance from Earth 2,034.89 light-years
- Earth Similarity Index 0.412
- Travel time at Voyager 1 speed 35,885,293 years
1 sibling around Kepler-520
Kepler-520 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-520 c | Rocky Terrestrial | 1.07 | 1.24 | 5.211 | 1,107 | 2016 |
| Kepler-520 b this | Super-Earth | 1.66 | 3.39 | 19.674 | 711 | 2016 |
Kepler-520 b Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#469of 1176
top 39.8%
This planet
1.66R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-520 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.66 | 11.21 |
| Mass (M⊕) | 1.00 | 3.39 | 317.83 |
| Density (g/cm³) | 5.51 | 4.07 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.23 | 2.53 |
| Insolation (S⊕) | 1.00 | 59.77 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 138097531
Gaia DR2
Gaia DR2 2077598384004774912
Gaia DR3
Gaia DR3 2077598384004774912
System
Kepler-520
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 19.67 Earth days (5.4% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1463 AU.
Transit Fingerprint
Depth
0.021 %
Duration
3.599 h
Impact parameter b
0.850
Rp / R★
0.013934
Transit midpoint (BJD)
2,455,009.2699
Photometric dip
Transit produces a flux drop of 211 ppm lasting ≈ 3.60 h.
Extended Orbital Architecture
Planet / star radius ratio
0.013934
Semi-major axis / stellar radius
17.740
Impact parameter (b)
0.850
Transit mid-time (BJD)
2,455,009.2699
Angular separation (arcsec)
0.23400
Eq. Temperature
711K
(438 °C)
Insolation (S⊕)
59.77
Earth = 1.00
Earth Similarity (ESI)
0.412
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-520
Spectral Class
F-type yellow-white
Effective Temperature
6,112 K — hotter than the Sun (5,778 K)
Estimated Age
2.04 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
1.090 R☉
Stellar Mass
1.100 M☉
Metallicity [Fe/H]
-0.03
Extended Stellar Properties
Surface gravity (log g)
4.410 dex
Stellar density
0.260 g/cm³
Systemic radial velocity
23.01 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.337 mas
Total Proper Motion
6.140 mas/yr
PM Right Ascension
-4.09 mas/yr
PM Declination
-4.58 mas/yr
Galactic Cartesian (pc)
x = 0.294 · y = -0.687 · z = 0.664
Equatorial (J2000)
RA 293.18029° · Dec 41.61774°
Galactic ℓ, b
74.495° · 10.582°
Ecliptic λ, β
308.770° · 61.972°
HTM-20 index
-198086880
Similar Worlds
Kepler-379 b
Super-Earth · F-type yellow-white
Radius 1.66 R⊕ · 2,385.1 ly
Kepler-394 c
Super-Earth · F-type yellow-white
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Kepler-1106 b
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Kepler-360 b
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Kepler-1511 b
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Kepler-188 b
Super-Earth · F-type yellow-white
Radius 1.68 R⊕ · 3,159.0 ly