Key parameters at a glance
- A radius of 4.21 Earth radii
- A mass of 16.50 Earth masses
- Surface gravity around 0.93 g
- An orbital period of 26.629 days
- Semi-major axis 0.1718 AU
- Equilibrium temperature 742 K (469 °C)
- Distance from Earth 2,126.53 light-years
- Earth Similarity Index 0.276
- Travel time at Voyager 1 speed 37,501,423 years
1 sibling around Kepler-511
Kepler-511 c 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-511 c this | Neptune-like | 4.21 | 16.50 | 26.629 | 742 | 2021 |
| Kepler-511 b | Neptune-like | 6.35 | 33.10 | 296.638 | 332 | 2016 |
Kepler-511 c Planet Profile
Physical Specs
Classification
Planet Type
Neptune-like
Discovery
Size rank in cohort
Rank by radius
#517of 574
top 89.9%
This planet
4.21R⊕
Neptune-like median
6.39R⊕
Nearest-size peers
| Metric | Earth | Kepler-511 c | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 4.21 | 11.21 |
| Mass (M⊕) | 1.00 | 16.50 | 317.83 |
| Density (g/cm³) | 5.51 | 1.22 | 1.33 |
| Surface Gravity (g) | 1.00 | 0.93 | 2.53 |
| Insolation (S⊕) | 1.00 | 101.60 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 164456037
Gaia DR2
Gaia DR2 2107644188496163200
Gaia DR3
Gaia DR3 2107644188496163200
System
Kepler-511
Percentile among Neptune-like cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 26.63 Earth days (7.3% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1718 AU.
Transit Fingerprint
Depth
0.049 %
Duration
7.831 h
Impact parameter b
0.000
Rp / R★
0.020100
Transit midpoint (BJD)
2,455,024.9963
Photometric dip
Transit produces a flux drop of 493 ppm lasting ≈ 7.83 h.
Extended Orbital Architecture
Planet / star radius ratio
0.020100
Semi-major axis / stellar radius
26.374
Impact parameter (b)
0.000
Transit mid-time (BJD)
2,455,024.9963
Angular separation (arcsec)
0.26300
Eq. Temperature
742K
(469 °C)
Insolation (S⊕)
101.60
Earth = 1.00
Earth Similarity (ESI)
0.276
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
Valizadegan et al. 2022Instrument
Kepler CCD Array
Publication
2022-02
Observation locale
Space
Discovery cohort
Planets confirmed in 2021 at Kepler (12 shown).
Host System: Kepler-511
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,866 K — hotter than the Sun (5,778 K)
Estimated Age
9.12 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
1.417 R☉
Stellar Mass
0.958 M☉
Metallicity [Fe/H]
-0.20
Extended Stellar Properties
Surface gravity (log g)
4.117 dex
Stellar density
0.489 g/cm³
Systemic radial velocity
2.62 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 15 bands
Astrometric Data
Parallax
1.505 mas
Total Proper Motion
25.293 mas/yr
PM Right Ascension
-24.26 mas/yr
PM Declination
7.17 mas/yr
Galactic Cartesian (pc)
x = 0.151 · y = -0.657 · z = 0.738
Equatorial (J2000)
RA 282.94554° · Dec 47.57492°
Galactic ℓ, b
77.192° · 19.614°
Ecliptic λ, β
296.016° · 69.847°
HTM-20 index
1610354275
Similar Worlds
Kepler-953 b
Neptune-like · G-type yellow (Sun-like)
Radius 4.21 R⊕ · 844.4 ly
Kepler-149 b
Neptune-like · G-type yellow (Sun-like)
Radius 4.21 R⊕ · 1,862.5 ly
Kepler-549 d
Neptune-like · G-type yellow (Sun-like)
Radius 4.20 R⊕ · 2,071.6 ly
Kepler-610 b
Neptune-like · G-type yellow (Sun-like)
Radius 4.19 R⊕ · 2,758.7 ly
Kepler-11 e
Neptune-like · G-type yellow (Sun-like)
Radius 4.19 R⊕ · 2,108.1 ly
K2-198 b
Neptune-like · G-type yellow (Sun-like)
Radius 4.19 R⊕ · 360.6 ly