2MASS J02192210-3925225 b
Astrophysical Synthesis & Habitability Characterization
2MASS J02192210-3925225 b is a confirmed gas giant exoplanet orbiting the star 2MASS J02192210-3925225, located approximately 130.8 light-years (40.09 parsecs) from the Solar System. First announced in 2015 by Cerro Tololo Inter-American Observatory using the Imaging detection technique (resolved directly via high-contrast coronagraphic or interferometric imaging), this world measures 16.141 Earth radii (1.44 Jupiter radii) and has a measured mass of 4417.837 Earth masses (13.9 Jupiter masses). Combining its mass and radius yields a mean bulk density of 5.79 g/cm³ (a terrestrial silicate-iron composition comparable to Earth (5.51 g/cm³)), a surface gravity of 16.96 g⊕ (166.32 m/s²), and an escape velocity of 185.1 km/s.
❄️ Thermal Regime (Cryogenic Zone): With an equilibrium temperature of 6 K (-267°C / -449°F), surface water and volatile species on 2MASS J02192210-3925225 b would remain locked in cryogenic ice phases unless warmed by subsurface tidal or radiogenic heating.
The host star 2MASS J02192210-3925225 is classified as a low-mass red dwarf of spectral type M6 with an effective photospheric temperature of 3,064 K, a radius of 0.281 R☉, a mass of 0.108 M☉, an estimated bolometric luminosity of 0.00624 L☉. Stellar evolution modeling indicates an estimated stellar age of 0.035 Gyr. From Earth, 2MASS J02192210-3925225 shines at apparent Gaia G-band magnitude 15.012 (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: Cerro Tololo Inter-American Observatory · Catalogue Source: NASA Exoplanet Archive (IPAC / Caltech).
☀️ Host Star Telemetry
| Host Star Name | 2MASS J02192210-3925225 |
| Spectral Type | M6 |
| Effective Temp (Teff) | 3,064 K |
| Stellar Radius | 0.2810 R☉ |
| Stellar Mass | 0.1080 M☉ |
| Bolometric Luminosity | 0.00624 L☉ |
| Metallicity [Fe/H] | — |
| Stellar Age | 0.035 Gyr |
| Apparent Magnitude | · G: 15.012 |
| System Architecture | 1 Star, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | 156.000000 AU |
| Orbital Period | — |
| Orbital Eccentricity (e) | Circular (0.00) |
| Orbital Inclination (i) | — |
| Mean Bulk Density | 5.79 g/cm³ (185.1 km/s vesc) |
| Insolation Flux | 0.0000 S⊕ |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 130.800 LY (40.090 pc) |