Key parameters at a glance
- A radius of 1.32 Earth radii
- A mass of 2.30 Earth masses
- Surface gravity around 1.32 g
- An orbital period of 8.277 days
- Semi-major axis 0.0760 AU
- Equilibrium temperature 1,088 K (815 °C)
- Distance from Earth 861.31 light-years
- Earth Similarity Index 0.283
- Travel time at Voyager 1 speed 15,189,135 years
- Almost certainly tidally locked to its host star given the close orbit
Kepler-1783 b Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#1069of 1176
top 90.8%
This planet
1.32R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-1783 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.32 | 11.21 |
| Mass (M⊕) | 1.00 | 2.30 | 317.83 |
| Density (g/cm³) | 5.51 | 5.50 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.32 | 2.53 |
| Insolation (S⊕) | 1.00 | 65.50 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 168811794
Gaia DR2
Gaia DR2 2076839480469187712
Gaia DR3
Gaia DR3 2076839480469187712
System
Kepler-1783
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 8.28 Earth days (2.3% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0760 AU.
Transit Fingerprint
Depth
0.019 %
Duration
2.704 h
Impact parameter b
0.151
Rp / R★
0.012223
Transit midpoint (BJD)
2,454,971.2551
Photometric dip
Transit produces a flux drop of 186 ppm lasting ≈ 2.70 h.
Extended Orbital Architecture
Planet / star radius ratio
0.012223
Semi-major axis / stellar radius
22.820
Impact parameter (b)
0.151
Transit mid-time (BJD)
2,454,971.2551
Angular separation (arcsec)
0.28800
Eq. Temperature
1,088K
(815 °C)
Insolation (S⊕)
65.50
Earth = 1.00
Earth Similarity (ESI)
0.283
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched. Close-orbiting tidally-locked around a cool host.
Detection Signatures
Transit photometry
A transit dip has been observed from at least one telescope.
Transit timing variations
Gravitational interactions from neighbours have been detected.
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-1783
Spectral Class
K-type orange
Effective Temperature
5,129 K — cooler than the Sun (5,778 K)
Estimated Age
1.15 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
1.781 R☉
Stellar Mass
0.887 M☉
Metallicity [Fe/H]
-0.16
Extended Stellar Properties
Surface gravity (log g)
3.884 dex
Stellar density
3.279 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
3.758 mas
Total Proper Motion
2.582 mas/yr
PM Right Ascension
2.09 mas/yr
PM Declination
-1.51 mas/yr
Galactic Cartesian (pc)
x = 0.341 · y = -0.668 · z = 0.661
Equatorial (J2000)
RA 297.02110° · Dec 41.37717°
Galactic ℓ, b
75.658° · 7.933°
Ecliptic λ, β
314.212° · 60.735°
HTM-20 index
-833990954
Similar Worlds
Kepler-333 b
Super-Earth · K-type orange
Radius 1.32 R⊕ · 1,058.1 ly
K2-35 b
Super-Earth · K-type orange
Radius 1.32 R⊕ · 823.9 ly
Kepler-383 b
Super-Earth · K-type orange
Radius 1.32 R⊕ · 1,532.9 ly
Kepler-395 c
Super-Earth · K-type orange
Radius 1.32 R⊕ · 1,374.4 ly
K2-233 b
Super-Earth · K-type orange
Radius 1.32 R⊕ · 220.2 ly
Kepler-1671 b
Super-Earth · K-type orange
Radius 1.33 R⊕ · 1,164.6 ly