Key parameters at a glance
- A radius of 3.43 Earth radii
- A mass of 11.60 Earth masses
- Surface gravity around 0.99 g
- An orbital period of 20.684 days
- Semi-major axis 0.1570 AU
- Equilibrium temperature 729 K (456 °C)
- Distance from Earth 5,052.45 light-years
- Earth Similarity Index 0.306
- Travel time at Voyager 1 speed 89,099,950 years
1 sibling around Kepler-182
Kepler-182 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-182 b | Sub-Neptune | 2.58 | 7.18 | 9.826 | 935 | 2014 |
| Kepler-182 c this | Sub-Neptune | 3.43 | 11.60 | 20.684 | 729 | 2014 |
Kepler-182 c Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#205of 1978
top 10.3%
This planet
3.43R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-182 c | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 3.43 | 11.21 |
| Mass (M⊕) | 1.00 | 11.60 | 317.83 |
| Density (g/cm³) | 5.51 | 1.58 | 1.33 |
| Surface Gravity (g) | 1.00 | 0.99 | 2.53 |
| Insolation (S⊕) | 1.00 | 88.85 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 267672183
Gaia DR2
Gaia DR2 2133080462292772096
Gaia DR3
Gaia DR3 2133080462292772096
System
Kepler-182
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 20.68 Earth days (5.7% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1570 AU.
Transit Fingerprint
Depth
0.086 %
Duration
6.416 h
Impact parameter b
0.290
Rp / R★
0.027190
Transit midpoint (BJD)
2,455,003.1882
Photometric dip
Transit produces a flux drop of 859 ppm lasting ≈ 6.42 h.
Extended Orbital Architecture
Planet / star radius ratio
0.027190
Semi-major axis / stellar radius
24.100
Impact parameter (b)
0.290
Transit mid-time (BJD)
2,455,003.1882
Angular separation (arcsec)
0.10100
Eq. Temperature
729K
(456 °C)
Insolation (S⊕)
88.85
Earth = 1.00
Earth Similarity (ESI)
0.306
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-182
Spectral Class
F-type yellow-white
Effective Temperature
6,250 K — hotter than the Sun (5,778 K)
Estimated Age
5.25 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
1.146 R☉
Stellar Mass
1.114 M☉
Metallicity [Fe/H]
0.07
Extended Stellar Properties
Surface gravity (log g)
4.401 dex
Stellar density
0.480 g/cm³
Metallicity ratio
[M/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
0.617 mas
Total Proper Motion
10.516 mas/yr
PM Right Ascension
-7.65 mas/yr
PM Declination
-7.22 mas/yr
Galactic Cartesian (pc)
x = 0.215 · y = -0.597 · z = 0.773
Equatorial (J2000)
RA 289.83011° · Dec 50.58620°
Galactic ℓ, b
81.843° · 16.482°
Ecliptic λ, β
311.823° · 71.157°
HTM-20 index
105920975
Similar Worlds
Kepler-116 b
Sub-Neptune · F-type yellow-white
Radius 3.42 R⊕ · 3,115.3 ly
Kepler-1927 b
Sub-Neptune · F-type yellow-white
Radius 3.41 R⊕ · 3,558.4 ly
Kepler-1360 b
Sub-Neptune · F-type yellow-white
Radius 3.40 R⊕ · 4,945.4 ly
Kepler-1533 b
Sub-Neptune · F-type yellow-white
Radius 3.46 R⊕ · 3,153.3 ly
Kepler-596 b
Sub-Neptune · F-type yellow-white
Radius 3.46 R⊕ · 3,339.3 ly
Kepler-1051 b
Sub-Neptune · F-type yellow-white
Radius 3.40 R⊕ · 2,705.0 ly