TIC 86380416 b
Astrophysical Synthesis & Habitability Characterization
TIC 86380416 b is a confirmed sub-neptune exoplanet orbiting the star TIC 86380416, located approximately 798 light-years (244.68 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 0.0499% across the stellar disk), this world measures 2.412 Earth radii and has a measured mass of 6.4 Earth masses. Combining its mass and radius yields a mean bulk density of 2.51 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 86380416, TIC 86380416 b completes one full revolution every 6.041 Earth days.
☁️ Atmospheric Regime (Volatile / Gas Envelope): With a radius of 2.412 R⊕, TIC 86380416 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 86380416 is classified as a stellar host with an effective photospheric temperature of 5,724 K, a radius of 0.9897 R☉, a mass of 1.07 M☉, an estimated bolometric luminosity of 0.943 L☉. From Earth, TIC 86380416 shines at apparent V-band magnitude 11.835 (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 86380416 |
| Spectral Type | Unclassified |
| Effective Temp (Teff) | 5,724 K |
| Stellar Radius | 0.9897 R☉ |
| Stellar Mass | 1.0700 M☉ |
| Bolometric Luminosity | 0.943 L☉ |
| Metallicity [Fe/H] | — |
| Stellar Age | — |
| Apparent Magnitude | V: 11.835 · G: 11.614 |
| System Architecture | 1 Star, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | — |
| Orbital Period | 6.041 days |
| Orbital Eccentricity (e) | Circular (0.00) |
| Orbital Inclination (i) | 87.9430° |
| Mean Bulk Density | 2.51 g/cm³ (18.2 km/s vesc) |
| Insolation Flux | — |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 798.000 LY (244.680 pc) |