TIC 356227008 b
Astrophysical Synthesis & Habitability Characterization
TIC 356227008 b is a confirmed sub-neptune exoplanet orbiting the star TIC 356227008, located approximately 1264.2 light-years (387.61 parsecs) from the Solar System. First announced in 2026 by Transiting Exoplanet Survey Satellite (TESS) using the Transit detection technique (producing an estimated primary transit depth of 0.0521% across the stellar disk), this world measures 2.39 Earth radii and has a measured mass of 6.3 Earth masses. Combining its mass and radius yields a mean bulk density of 2.54 g/cm³ (an intermediate density indicative of a deep water-ice mantle or dense volatile envelope), a surface gravity of 1.1 g⊕ (10.79 m/s²), and an escape velocity of 18.2 km/s.
In its orbital architecture around TIC 356227008, TIC 356227008 b completes one full revolution every 2.961 Earth days.
☁️ Atmospheric Regime (Volatile / Gas Envelope): With a radius of 2.390 R⊕, TIC 356227008 b exceeds the empirical ~1.8–2.2 R⊕ Fulton radius valley threshold, indicating a substantial hydrogen-helium or supercritical volatile envelope without a conventional solid terrestrial surface.
The host star TIC 356227008 is classified as a stellar host with an effective photospheric temperature of 5,732 K, a radius of 0.9598 R☉, a mass of 1.02 M☉, an estimated bolometric luminosity of 0.892 L☉. From Earth, TIC 356227008 shines at apparent V-band magnitude 12.996 (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: Transiting Exoplanet Survey Satellite (TESS) · Catalogue Source: NASA Exoplanet Archive (IPAC / Caltech).
☀️ Host Star Telemetry
| Host Star Name | TIC 356227008 |
| Spectral Type | Unclassified |
| Effective Temp (Teff) | 5,732 K |
| Stellar Radius | 0.9598 R☉ |
| Stellar Mass | 1.0200 M☉ |
| Bolometric Luminosity | 0.892 L☉ |
| Metallicity [Fe/H] | — |
| Stellar Age | — |
| Apparent Magnitude | V: 12.996 · G: 12.836 |
| System Architecture | 1 Star, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | — |
| Orbital Period | 2.961 days |
| Orbital Eccentricity (e) | Circular (0.00) |
| Orbital Inclination (i) | 86.8986° |
| Mean Bulk Density | 2.54 g/cm³ (18.2 km/s vesc) |
| Insolation Flux | — |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 1264.200 LY (387.609 pc) |