EPIC 201427007 b
Astrophysical Synthesis & Habitability Characterization
EPIC 201427007 b is a confirmed super-earth exoplanet orbiting the star EPIC 201427007, located approximately 2303.9 light-years (706.39 parsecs) from the Solar System. First announced in 2021 by K2 using the Transit detection technique (producing an estimated primary transit depth of 0.0214% across the stellar disk), this world measures 1.5 Earth radii and has a measured mass of 2.86 Earth masses. Combining its mass and radius yields a mean bulk density of 4.67 g/cm³ (a terrestrial silicate-iron composition comparable to Earth (5.51 g/cm³)), a surface gravity of 1.27 g⊕ (12.45 m/s²), and an escape velocity of 15.4 km/s.
In its orbital architecture around EPIC 201427007, EPIC 201427007 b completes one full revolution every 0.721 Earth days.
ℹ️ Thermal & Atmospheric Regime: Current photometric and spectroscopic constraints for EPIC 201427007 b place it outside the conservative habitable zone definition pending further atmospheric characterization.
The host star EPIC 201427007 is classified as a stellar host with an effective photospheric temperature of 5,633 K, a radius of 0.94 R☉, a mass of 0.93 M☉, an estimated bolometric luminosity of 0.798 L☉. Stellar evolution modeling indicates a metallicity of [Fe/H] = -0.053 dex (near-solar heavy-element abundance). From Earth, EPIC 201427007 shines at apparent V-band magnitude 14.321 (faint and requiring research-grade or CCD telescopic photometry) in the Southern celestial hemisphere.
Methodology: Computed using the Schulze-Makuch et al. (2011) weighted metric comparing physical interior (radius, estimated density) and surface thermal regime (escape velocity, equilibrium temperature).
Discovery Facility: K2 · Catalogue Source: NASA Exoplanet Archive (IPAC / Caltech).
☀️ Host Star Telemetry
| Host Star Name | EPIC 201427007 |
| Spectral Type | Unclassified |
| Effective Temp (Teff) | 5,633 K |
| Stellar Radius | 0.9400 R☉ |
| Stellar Mass | 0.9300 M☉ |
| Bolometric Luminosity | 0.798 L☉ |
| Metallicity [Fe/H] | -0.053 dex |
| Stellar Age | — |
| Apparent Magnitude | V: 14.321 · G: 14.147 |
| System Architecture | 1 Star, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | — |
| Orbital Period | 0.721 days |
| Orbital Eccentricity (e) | Circular (0.00) |
| Orbital Inclination (i) | 88.5000° |
| Mean Bulk Density | 4.67 g/cm³ (15.4 km/s vesc) |
| Insolation Flux | — |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 2303.900 LY (706.391 pc) |