2MASS J04414489+2301513 b
Astrophysical Synthesis & Habitability Characterization
2MASS J04414489+2301513 b is a confirmed gas giant exoplanet orbiting the star 2MASS J04414489+2301513, located approximately 392.8 light-years (120.42 parsecs) from the Solar System. First announced in 2010 by Hubble Space Telescope using the Imaging detection technique (resolved directly via high-contrast coronagraphic or interferometric imaging), this world measures 12.6 Earth radii (1.12 Jupiter radii) and has a measured mass of 2383.6 Earth masses (7.5 Jupiter masses). Combining its mass and radius yields a mean bulk density of 6.57 g/cm³ (an iron-enriched, high-compression rocky core), a surface gravity of 15.01 g⊕ (147.2 m/s²), and an escape velocity of 153.9 km/s.
❄️ Thermal Regime (Cryogenic Zone): With an equilibrium temperature of 18 K (-255°C / -427°F), surface water and volatile species on 2MASS J04414489+2301513 b would remain locked in cryogenic ice phases unless warmed by subsurface tidal or radiogenic heating.
The host star 2MASS J04414489+2301513 is classified as a low-mass red dwarf of spectral type M8.5 with an effective photospheric temperature of 2,936 K, a radius of 0.2319 R☉, a mass of 0.019 M☉, an estimated bolometric luminosity of 0.00359 L☉. Stellar evolution modeling indicates an estimated stellar age of 0.001 Gyr. From Earth, 2MASS J04414489+2301513 shines at apparent Gaia G-band magnitude 18.967 (faint and requiring research-grade or CCD telescopic photometry) in the Northern 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: Hubble Space Telescope · Catalogue Source: NASA Exoplanet Archive (IPAC / Caltech).
☀️ Host Star Telemetry
| Host Star Name | 2MASS J04414489+2301513 |
| Spectral Type | M8.5 |
| Effective Temp (Teff) | 2,936 K |
| Stellar Radius | 0.2319 R☉ |
| Stellar Mass | 0.0190 M☉ |
| Bolometric Luminosity | 0.00359 L☉ |
| Metallicity [Fe/H] | — |
| Stellar Age | 0.001 Gyr |
| Apparent Magnitude | · G: 18.967 |
| System Architecture | 1 Star, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | 15.000000 AU |
| Orbital Period | — |
| Orbital Eccentricity (e) | Circular (0.00) |
| Orbital Inclination (i) | — |
| Mean Bulk Density | 6.57 g/cm³ (153.9 km/s vesc) |
| Insolation Flux | 0.0000 S⊕ |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 392.800 LY (120.424 pc) |