Key parameters at a glance
- A radius of 1.56 Earth radii
- A mass of 3.07 Earth masses
- Surface gravity around 1.26 g
- An orbital period of 1.866 days
- Distance from Earth 664.67 light-years
- Earth Similarity Index 0.877
- Travel time at Voyager 1 speed 11,721,398 years
- Almost certainly tidally locked to its host star given the close orbit
K2-383 b Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#634of 1176
top 53.8%
This planet
1.56R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | K2-383 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.56 | 11.21 |
| Mass (M⊕) | 1.00 | 3.07 | 317.83 |
| Density (g/cm³) | 5.51 | 4.41 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.26 | 2.53 |
| Insolation (S⊕) | 1.00 | — | 0.037 |
Star Catalogue Identifiers
TIC
TIC 31244979
Gaia DR2
Gaia DR2 4098446119569242752
Gaia DR3
Gaia DR3 4098446119569242752
System
K2-383
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 1.87 Earth days (0.5% of a terrestrial year).
Transit Fingerprint
Depth
0.038 %
Duration
1.963 h
Impact parameter b
0.268
Rp / R★
0.017800
Transit midpoint (BJD)
2,457,302.0928
Photometric dip
Transit produces a flux drop of 383 ppm lasting ≈ 1.96 h.
Extended Orbital Architecture
Planet / star radius ratio
0.017800
Semi-major axis / stellar radius
7.770
Impact parameter (b)
0.268
Transit mid-time (BJD)
2,457,302.0928
Eq. Temperature
—
Insolation (S⊕)
—
Earth = 1.00
Earth Similarity (ESI)
0.877
0 = alien, 1 = Earth-identical
Insufficient insolation data. Close-orbiting tidally-locked around a cool host.
Discovery Paper
Primary reference
Christiansen et al. 2022Instrument
Kepler CCD Array
Publication
2022-03
Observation locale
Space
Discovery cohort
Planets confirmed in 2022 at K2 (12 shown).
Host System: K2-383
Spectral Class
K-type orange
Effective Temperature
5,129 K — cooler than the Sun (5,778 K)
Estimated Age
—
Stellar Radius
0.804 R☉
Stellar Mass
1.061 M☉
Metallicity [Fe/H]
0.19
Extended Stellar Properties
Surface gravity (log g)
4.655 dex
Stellar density
1.883 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 12 bands
Astrometric Data
Parallax
4.879 mas
Total Proper Motion
64.950 mas/yr
PM Right Ascension
12.67 mas/yr
PM Declination
-63.70 mas/yr
Galactic Cartesian (pc)
x = 0.197 · y = -0.928 · z = -0.315
Equatorial (J2000)
RA 282.00877° · Dec -18.37958°
Galactic ℓ, b
16.101° · -7.541°
Ecliptic λ, β
281.421° · 4.585°
HTM-20 index
1097185245
Similar Worlds
K2-136 d
Super-Earth · K-type orange
Radius 1.57 R⊕ · 193.2 ly
TOI-5736 b
Super-Earth · K-type orange
Radius 1.56 R⊕ · 301.2 ly
Kepler-1317 b
Super-Earth · K-type orange
Radius 1.56 R⊕ · 2,375.4 ly
Kepler-190 b
Super-Earth · K-type orange
Radius 1.56 R⊕ · 1,413.5 ly
TOI-238 b
Super-Earth · K-type orange
Radius 1.56 R⊕ · 262.7 ly
Kepler-2000 c
Super-Earth · K-type orange
Radius 1.57 R⊕ · 1,045.6 ly