TYC 1422-614-1 b
Astrophysical Synthesis & Habitability Characterization
TYC 1422-614-1 b is a confirmed gas giant exoplanet orbiting the star TYC 1422-614-1, located approximately 2193.1 light-years (672.41 parsecs) from the Solar System. First announced in 2014 by Multiple Observatories using the Radial Velocity detection technique (measuring periodic Doppler reflex motion in the host star's spectrum), this world measures 13.3 Earth radii (1.19 Jupiter radii) and has a measured mass of 794.5 Earth masses (2.5 Jupiter masses). Combining its mass and radius yields a mean bulk density of 1.86 g/cm³ (a low bulk density dominated by an extended hydrogen-helium gaseous envelope), a surface gravity of 4.49 g⊕ (44.03 m/s²), and an escape velocity of 86.5 km/s.
In its orbital architecture around TYC 1422-614-1, TYC 1422-614-1 b completes one full revolution every 198.4 Earth days at a semi-major axis of 0.69 AU (situated at an orbital separation between Mercury's 0.39 AU and Venus's 0.72 AU). Its mean orbital velocity is approximately 37.8 km/s (compared to Earth's 29.8 km/s). Its moderate orbital eccentricity of e = 0.06 carries the world between 0.6486 AU at periapsis and 0.7314 AU at apoapsis, driving measurable seasonal insolation cycles.
⚠️ Thermal Regime (Irradiated / Hot Zone): At an equilibrium temperature of 730 K (+457°C / +855°F) and receiving 47.02 S⊕ (~63,997 W/m²), TYC 1422-614-1 b orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.
The host star TYC 1422-614-1 is classified as a stellar host with an effective photospheric temperature of 4,806 K, a radius of 6.85 R☉, a mass of 1.15 M☉, an estimated bolometric luminosity of 22.46 L☉. Stellar evolution modeling indicates an estimated stellar age of 5.89 Gyr and a metallicity of [Fe/H] = -0.2 dex (metal-poor relative to the Sun). From Earth, TYC 1422-614-1 shines at apparent V-band magnitude 10.193 (faint and requiring research-grade or CCD telescopic photometry) in the Northern celestial hemisphere. The TYC 1422-614-1 system is a multi-planet architecture hosting 2 confirmed worlds, with TYC 1422-614-1 b sharing its stellar neighborhood alongside TYC 1422-614-1 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: Multiple Observatories · Catalogue Source: NASA Exoplanet Archive (IPAC / Caltech).
☀️ Host Star Telemetry
| Host Star Name | TYC 1422-614-1 |
| Spectral Type | Unclassified |
| Effective Temp (Teff) | 4,806 K |
| Stellar Radius | 6.8500 R☉ |
| Stellar Mass | 1.1500 M☉ |
| Bolometric Luminosity | 22.46 L☉ |
| Metallicity [Fe/H] | -0.200 dex |
| Stellar Age | 5.890 Gyr |
| Apparent Magnitude | V: 10.193 · G: 9.913 |
| System Architecture | 1 Star, 2 Planets |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | 0.690000 AU |
| Orbital Period | 198.4 days |
| Mean Orbital Velocity | 37.8 km/s |
| Orbital Eccentricity (e) | 0.06000 |
| Orbital Inclination (i) | — |
| Mean Bulk Density | 1.86 g/cm³ (86.5 km/s vesc) |
| Insolation Flux | 47.0221 S⊕ (~63,997 W/m²) |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 2193.100 LY (672.410 pc) |