Key parameters at a glance
- A radius of 1.36 Earth radii
- A mass of 2.42 Earth masses
- Surface gravity around 1.31 g
- An orbital period of 9.660 days
- Distance from Earth 673.86 light-years
- Earth Similarity Index 0.927
- Travel time at Voyager 1 speed 11,883,598 years
- Almost certainly tidally locked to its host star given the close orbit
2 siblings around K2-368
K2-368 c shares its host star with 2 other confirmed planets. Side-by-side measurements below.
K2-368 c Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#980of 1176
top 83.2%
This planet
1.36R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | K2-368 c | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.36 | 11.21 |
| Mass (M⊕) | 1.00 | 2.42 | 317.83 |
| Density (g/cm³) | 5.51 | 5.27 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.31 | 2.53 |
| Insolation (S⊕) | 1.00 | — | 0.037 |
Star Catalogue Identifiers
TIC
TIC 38136597
Gaia DR2
Gaia DR2 2613924969021549440
Gaia DR3
Gaia DR3 2613924969021549440
System
K2-368
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 9.66 Earth days (2.6% of a terrestrial year).
Transit Fingerprint
Depth
0.052 %
Duration
2.856 h
Impact parameter b
0.306
Rp / R★
0.018800
Transit midpoint (BJD)
2,456,977.8722
Photometric dip
Transit produces a flux drop of 522 ppm lasting ≈ 2.86 h.
Extended Orbital Architecture
Planet / star radius ratio
0.018800
Semi-major axis / stellar radius
25.980
Impact parameter (b)
0.306
Transit mid-time (BJD)
2,456,977.8722
Eq. Temperature
—
Insolation (S⊕)
—
Earth = 1.00
Earth Similarity (ESI)
0.927
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: K2-368
Spectral Class
K-type orange
Effective Temperature
4,663 K — cooler than the Sun (5,778 K)
Estimated Age
—
Stellar Radius
0.663 R☉
Stellar Mass
0.746 M☉
Metallicity [Fe/H]
-0.25
Extended Stellar Properties
Surface gravity (log g)
4.667 dex
Stellar density
3.553 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 12 bands
Astrometric Data
Parallax
4.811 mas
Total Proper Motion
25.482 mas/yr
PM Right Ascension
18.96 mas/yr
PM Declination
17.03 mas/yr
Galactic Cartesian (pc)
x = 0.871 · y = -0.451 · z = -0.194
Equatorial (J2000)
RA 332.63576° · Dec -11.16612°
Galactic ℓ, b
47.886° · -49.023°
Ecliptic λ, β
330.605° · 0.097°
HTM-20 index
-690758855
Similar Worlds
Kepler-1246 b
Super-Earth · K-type orange
Radius 1.36 R⊕ · 1,423.7 ly
Kepler-1459 b
Super-Earth · K-type orange
Radius 1.36 R⊕ · 1,485.6 ly
Kepler-1680 b
Super-Earth · K-type orange
Radius 1.36 R⊕ · 1,012.1 ly
Kepler-240 b
Super-Earth · K-type orange
Radius 1.37 R⊕ · 2,436.1 ly
Kepler-901 b
Super-Earth · K-type orange
Radius 1.37 R⊕ · 828.0 ly
Kepler-935 b
Super-Earth · K-type orange
Radius 1.35 R⊕ · 1,538.7 ly