Key parameters at a glance
- A radius of 2.27 Earth radii
- A mass of 35.70 Earth masses
- Surface gravity around 6.93 g
- An orbital period of 11.637 days
- Semi-major axis 0.1030 AU
- Equilibrium temperature 857 K (584 °C)
- Distance from Earth 3,426.73 light-years
- Earth Similarity Index 0.253
- Travel time at Voyager 1 speed 60,430,299 years
1 sibling around Kepler-183
Kepler-183 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-183 b | Sub-Neptune | 2.06 | 4.90 | 5.688 | 1,088 | 2014 |
| Kepler-183 c this | Sub-Neptune | 2.27 | 35.70 | 11.637 | 857 | 2014 |
Kepler-183 c Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#1554of 1978
top 78.5%
This planet
2.27R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-183 c | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 2.27 | 11.21 |
| Mass (M⊕) | 1.00 | 35.70 | 317.83 |
| Density (g/cm³) | 5.51 | 16.80 | 1.33 |
| Surface Gravity (g) | 1.00 | 6.93 | 2.53 |
| Insolation (S⊕) | 1.00 | 108.72 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 35.700 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 138214374
Gaia DR2
Gaia DR2 2052452140764708480
Gaia DR3
Gaia DR3 2052452140764708480
System
Kepler-183
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 11.64 Earth days (3.2% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1030 AU.
Transit Fingerprint
Depth
0.060 %
Duration
3.289 h
Impact parameter b
0.010
Rp / R★
0.022173
Transit midpoint (BJD)
2,455,011.8430
Photometric dip
Transit produces a flux drop of 604 ppm lasting ≈ 3.29 h.
Extended Orbital Architecture
Planet / star radius ratio
0.022173
Semi-major axis / stellar radius
27.180
Impact parameter (b)
0.010
Transit mid-time (BJD)
2,455,011.8430
Angular separation (arcsec)
0.09800
Eq. Temperature
857K
(584 °C)
Insolation (S⊕)
108.72
Earth = 1.00
Earth Similarity (ESI)
0.253
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-183
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,888 K — hotter than the Sun (5,778 K)
Estimated Age
5.62 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
0.958 R☉
Stellar Mass
0.990 M☉
Metallicity [Fe/H]
0.11
Extended Stellar Properties
Surface gravity (log g)
4.502 dex
Stellar density
0.920 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
0.924 mas
Total Proper Motion
8.990 mas/yr
PM Right Ascension
-2.16 mas/yr
PM Declination
8.73 mas/yr
Galactic Cartesian (pc)
x = 0.309 · y = -0.709 · z = 0.634
Equatorial (J2000)
RA 293.53081° · Dec 39.31593°
Galactic ℓ, b
72.543° · 9.289°
Ecliptic λ, β
307.757° · 59.708°
HTM-20 index
1281784525
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Sub-Neptune · G-type yellow (Sun-like)
Radius 2.27 R⊕ · —
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Kepler-121 c
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Kepler-226 c
Sub-Neptune · G-type yellow (Sun-like)
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