Key parameters at a glance
- A radius of 1.94 Earth radii
- A mass of 4.10 Earth masses
- Surface gravity around 1.09 g
- An orbital period of 5.170 days
- Semi-major axis 0.0510 AU
- Equilibrium temperature 569 K (296 °C)
- Distance from Earth 1,305.96 light-years
- Earth Similarity Index 0.334
- Travel time at Voyager 1 speed 23,030,568 years
- Almost certainly tidally locked to its host star given the close orbit
2 siblings around Kepler-83
Kepler-83 d shares its host star with 2 other confirmed planets. Side-by-side measurements below.
| Planet | Type | Radius (R⊕) | Mass (M⊕) | Period (d) | Eq. T (K) | Year |
|---|---|---|---|---|---|---|
| Kepler-83 d this | Super-Earth | 1.94 | 4.10 | 5.170 | 569 | 2014 |
| Kepler-83 b | Sub-Neptune | 2.83 | 2.94 | 9.770 | 460 | 2012 |
| Kepler-83 c | Sub-Neptune | 2.36 | 2.03 | 20.090 | 362 | 2012 |
Kepler-83 d Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#79of 1176
top 6.6%
This planet
1.94R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-83 d | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.94 | 11.21 |
| Mass (M⊕) | 1.00 | 4.10 | 317.83 |
| Density (g/cm³) | 5.51 | 0.56 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.09 | 2.53 |
| Insolation (S⊕) | 1.00 | 28.81 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 4.100 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 123416515
Gaia DR2
Gaia DR2 2105261134483173632
Gaia DR3
Gaia DR3 2105261134483173632
System
Kepler-83
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 5.17 Earth days (1.4% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0510 AU.
Transit Fingerprint
Depth
0.104 %
Duration
2.163 h
Impact parameter b
0.370
Rp / R★
0.029936
Transit midpoint (BJD)
2,455,005.6310
Photometric dip
Transit produces a flux drop of 1,037 ppm lasting ≈ 2.16 h.
Extended Orbital Architecture
Planet / star radius ratio
0.029936
Semi-major axis / stellar radius
17.800
Impact parameter (b)
0.370
Transit mid-time (BJD)
2,455,005.6310
Angular separation (arcsec)
0.12700
Eq. Temperature
569K
(296 °C)
Insolation (S⊕)
28.81
Earth = 1.00
Earth Similarity (ESI)
0.334
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water. Close-orbiting tidally-locked around a cool host.
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-83
Spectral Class
M-type red dwarf
Effective Temperature
4,648 K — cooler than the Sun (5,778 K)
Estimated Age
3.09 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.594 R☉
Stellar Mass
0.580 M☉
Metallicity [Fe/H]
-0.20
Extended Stellar Properties
Surface gravity (log g)
4.718 dex
Stellar density
3.816 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
2.469 mas
Total Proper Motion
13.774 mas/yr
PM Right Ascension
1.91 mas/yr
PM Declination
-13.64 mas/yr
Galactic Cartesian (pc)
x = 0.153 · y = -0.707 · z = 0.690
Equatorial (J2000)
RA 282.23252° · Dec 43.66557°
Galactic ℓ, b
73.114° · 18.777°
Ecliptic λ, β
292.282° · 66.161°
HTM-20 index
-713350925
Similar Worlds
Kepler-231 c
Super-Earth · M-type red dwarf
Radius 1.93 R⊕ · 1,032.7 ly
Kepler-52 d
Super-Earth · M-type red dwarf
Radius 1.95 R⊕ · 1,048.7 ly
GJ 682 b
Super-Earth · M-type red dwarf
Radius 1.93 R⊕ · 16.3 ly
TOI-912 b
Super-Earth · M-type red dwarf
Radius 1.93 R⊕ · 85.2 ly
Kepler-28 b
Super-Earth · M-type red dwarf
Radius 1.96 R⊕ · 1,429.7 ly
TOI-663 d
Super-Earth · M-type red dwarf
Radius 1.92 R⊕ · 209.5 ly