Key parameters at a glance
- A radius of 1.48 Earth radii
- A mass of 2.79 Earth masses
- Surface gravity around 1.27 g
- An orbital period of 2.289 days
- Equilibrium temperature 1,149 K (876 °C)
- Distance from Earth 1,364.62 light-years
- Earth Similarity Index 0.257
- Travel time at Voyager 1 speed 24,065,079 years
- Almost certainly tidally locked to its host star given the close orbit
1 sibling around EPIC 212297394
EPIC 212297394 b shares its host star with 1 other confirmed planet. Side-by-side measurements below.
| Planet | Type | Radius (R⊕) | Mass (M⊕) | Period (d) | Eq. T (K) | Year |
|---|---|---|---|---|---|---|
| EPIC 212297394 b this | Super-Earth | 1.48 | 2.79 | 2.289 | 1,149 | 2019 |
| EPIC 212297394 c | Sub-Neptune | 2.27 | 5.77 | 5.214 | 866 | 2021 |
EPIC 212297394 b Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#784of 1176
top 66.6%
This planet
1.48R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | EPIC 212297394 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.48 | 11.21 |
| Mass (M⊕) | 1.00 | 2.79 | 317.83 |
| Density (g/cm³) | 5.51 | 4.73 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.27 | 2.53 |
| Insolation (S⊕) | 1.00 | — | 0.037 |
Star Catalogue Identifiers
TIC
TIC 287331845
Gaia DR2
Gaia DR2 6294955311720593024
Gaia DR3
Gaia DR3 6294955311720593024
System
EPIC 212297394
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 2.29 Earth days (0.6% of a terrestrial year).
Transit Fingerprint
Depth
0.054 %
Duration
1.880 h
Impact parameter b
0.410
Rp / R★
0.016900
Transit midpoint (BJD)
2,457,217.9632
Photometric dip
Transit produces a flux drop of 535 ppm lasting ≈ 1.88 h.
Extended Orbital Architecture
Planet / star radius ratio
0.016900
Semi-major axis / stellar radius
8.530
Impact parameter (b)
0.410
Transit mid-time (BJD)
2,457,217.9632
Eq. Temperature
1,149K
(876 °C)
Insolation (S⊕)
—
Earth = 1.00
Earth Similarity (ESI)
0.257
0 = alien, 1 = Earth-identical
Insufficient insolation data — the dayside is scorched. Close-orbiting tidally-locked around a cool host.
Discovery Paper
Primary reference
Heller et al. 2019Instrument
Kepler CCD Array
Publication
2019-07
Observation locale
Space
Discovery cohort
Planets confirmed in 2019 at K2 (12 shown).
Host System: EPIC 212297394
Spectral Class
K-type orange
Effective Temperature
5,171 K — cooler than the Sun (5,778 K)
Estimated Age
—
Stellar Radius
0.800 R☉
Stellar Mass
0.830 M☉
Metallicity [Fe/H]
-0.03
Extended Stellar Properties
Surface gravity (log g)
4.550 dex
Stellar density
2.504 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 12 bands
Astrometric Data
Parallax
2.362 mas
Total Proper Motion
23.157 mas/yr
PM Right Ascension
-23.16 mas/yr
PM Declination
-0.24 mas/yr
Galactic Cartesian (pc)
x = -0.848 · y = -0.436 · z = -0.303
Equatorial (J2000)
RA 207.20612° · Dec -17.60990°
Galactic ℓ, b
321.819° · 43.147°
Ecliptic λ, β
211.530° · -5.983°
HTM-20 index
2078126015
Similar Worlds
Kepler-975 b
Super-Earth · K-type orange
Radius 1.48 R⊕ · 1,389.7 ly
Kepler-99 b
Super-Earth · K-type orange
Radius 1.48 R⊕ · 679.6 ly
K2-83 c
Super-Earth · K-type orange
Radius 1.48 R⊕ · 409.4 ly
Kepler-1826 b
Super-Earth · K-type orange
Radius 1.48 R⊕ · 1,099.0 ly
Kepler-1756 b
Super-Earth · K-type orange
Radius 1.47 R⊕ · —
Kepler-1841 b
Super-Earth · K-type orange
Radius 1.49 R⊕ · 2,060.3 ly