Kepler-144 b
Astrophysical Synthesis & Habitability Characterization
Kepler-144 b is a confirmed super-earth exoplanet orbiting the star Kepler-144, located approximately 1255.4 light-years (384.92 parsecs) from the Solar System. First announced in 2014 by Kepler using the Transit detection technique (producing an estimated primary transit depth of 0.0097% across the stellar disk), this world measures 1.33 Earth radii and has a measured mass of 2.33 Earth masses. Combining its mass and radius yields a mean bulk density of 5.46 g/cm³ (a terrestrial silicate-iron composition comparable to Earth (5.51 g/cm³)), a surface gravity of 1.32 g⊕ (12.94 m/s²), and an escape velocity of 14.8 km/s.
In its orbital architecture around Kepler-144, Kepler-144 b completes one full revolution every 5.885 Earth days at a semi-major axis of 0.066 AU (orbiting interior to Mercury's 0.387 AU benchmark in the Solar System). Its mean orbital velocity is approximately 122 km/s (compared to Earth's 29.8 km/s). The orbit is modeled as circular (e = 0.00), maintaining a constant stellar distance throughout its year.
⚠️ Thermal Regime (Irradiated / Hot Zone): At an equilibrium temperature of 1253 K (+980°C / +1796°F) and receiving 426.72 S⊕ (~580,765 W/m²), Kepler-144 b orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.
The host star Kepler-144 is classified as a stellar host with an effective photospheric temperature of 6,075 K, a radius of 1.235 R☉, a mass of 1.154 M☉, an estimated bolometric luminosity of 1.864 L☉. Stellar evolution modeling indicates an estimated stellar age of 0.94 Gyr and a metallicity of [Fe/H] = -0.185 dex (metal-poor relative to the Sun). From Earth, Kepler-144 shines at apparent V-band magnitude 12.195 (faint and requiring research-grade or CCD telescopic photometry) in the Northern celestial hemisphere. The Kepler-144 system is a multi-planet architecture hosting 2 confirmed worlds, with Kepler-144 b sharing its stellar neighborhood alongside Kepler-144 c.
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: Kepler · Catalogue Source: NASA Exoplanet Archive (IPAC / Caltech).
☀️ Host Star Telemetry
| Host Star Name | Kepler-144 |
| Spectral Type | Unclassified |
| Effective Temp (Teff) | 6,075 K |
| Stellar Radius | 1.2350 R☉ |
| Stellar Mass | 1.1540 M☉ |
| Bolometric Luminosity | 1.864 L☉ |
| Metallicity [Fe/H] | -0.185 dex |
| Stellar Age | 0.940 Gyr |
| Apparent Magnitude | V: 12.195 · G: 11.944 |
| System Architecture | 1 Star, 2 Planets |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | 0.066000 AU |
| Orbital Period | 5.885 days |
| Mean Orbital Velocity | 122 km/s |
| Orbital Eccentricity (e) | 0.00000 |
| Orbital Inclination (i) | 88.0600° |
| Mean Bulk Density | 5.46 g/cm³ (14.8 km/s vesc) |
| Insolation Flux | 426.7190 S⊕ (~580,765 W/m²) |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 1255.400 LY (384.917 pc) |