Key parameters at a glance
- A radius of 3.36 Earth radii
- A mass of 11.20 Earth masses
- Surface gravity around 0.99 g
- An orbital period of 33.418 days
- Semi-major axis 0.1899 AU
- Equilibrium temperature 448 K (175 °C)
- Distance from Earth 2,943.99 light-years
- Earth Similarity Index 0.485
- Travel time at Voyager 1 speed 51,917,291 years
- Almost certainly tidally locked to its host star given the close orbit
Kepler-1083 b Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#242of 1978
top 12.2%
This planet
3.36R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-1083 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 3.36 | 11.21 |
| Mass (M⊕) | 1.00 | 11.20 | 317.83 |
| Density (g/cm³) | 5.51 | 1.62 | 1.33 |
| Surface Gravity (g) | 1.00 | 0.99 | 2.53 |
| Insolation (S⊕) | 1.00 | 10.15 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 164458639
Gaia DR2
Gaia DR2 2106904698207543936
Gaia DR3
Gaia DR3 2106904698207543936
System
Kepler-1083
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 33.42 Earth days (9.1% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1899 AU.
Transit Fingerprint
Depth
0.117 %
Duration
4.549 h
Impact parameter b
0.913
Rp / R★
0.039524
Transit midpoint (BJD)
2,454,988.5894
Photometric dip
Transit produces a flux drop of 1,167 ppm lasting ≈ 4.55 h.
Extended Orbital Architecture
Planet / star radius ratio
0.039524
Semi-major axis / stellar radius
27.200
Impact parameter (b)
0.913
Transit mid-time (BJD)
2,454,988.5894
Angular separation (arcsec)
0.21000
Eq. Temperature
448K
(175 °C)
Insolation (S⊕)
10.15
Earth = 1.00
Earth Similarity (ESI)
0.485
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
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-1083
Spectral Class
K-type orange
Effective Temperature
5,049 K — cooler than the Sun (5,778 K)
Estimated Age
4.68 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
0.770 R☉
Stellar Mass
0.810 M☉
Metallicity [Fe/H]
-0.02
Extended Stellar Properties
Surface gravity (log g)
4.580 dex
Stellar density
0.451 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.080 mas
Total Proper Motion
6.821 mas/yr
PM Right Ascension
-3.33 mas/yr
PM Declination
5.95 mas/yr
Galactic Cartesian (pc)
x = 0.160 · y = -0.686 · z = 0.710
Equatorial (J2000)
RA 283.16188° · Dec 45.19834°
Galactic ℓ, b
74.874° · 18.677°
Ecliptic λ, β
294.794° · 67.508°
HTM-20 index
-382453396
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