TIC 38825265 b
Astrophysical Synthesis & Habitability Characterization
TIC 38825265 b is a confirmed sub-neptune exoplanet orbiting the star TIC 38825265, located approximately 540.2 light-years (165.64 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 0.0912% across the stellar disk), this world measures 2.189 Earth radii and has a measured mass of 5.43 Earth masses. Combining its mass and radius yields a mean bulk density of 2.85 g/cm³ (an intermediate density indicative of a deep water-ice mantle or dense volatile envelope), a surface gravity of 1.13 g⊕ (11.08 m/s²), and an escape velocity of 17.6 km/s.
In its orbital architecture around TIC 38825265, TIC 38825265 b completes one full revolution every 3.313 Earth days.
ℹ️ Thermal & Atmospheric Regime: Current photometric and spectroscopic constraints for TIC 38825265 b place it outside the conservative habitable zone definition pending further atmospheric characterization.
The host star TIC 38825265 is classified as a stellar host with an effective photospheric temperature of 4,376 K, a radius of 0.6645 R☉, a mass of 0.64 M☉, an estimated bolometric luminosity of 0.145 L☉. From Earth, TIC 38825265 shines at apparent V-band magnitude 14.134 (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: Transiting Exoplanet Survey Satellite (TESS) · Catalogue Source: NASA Exoplanet Archive (IPAC / Caltech).
☀️ Host Star Telemetry
| Host Star Name | TIC 38825265 |
| Spectral Type | Unclassified |
| Effective Temp (Teff) | 4,376 K |
| Stellar Radius | 0.6645 R☉ |
| Stellar Mass | 0.6400 M☉ |
| Bolometric Luminosity | 0.145 L☉ |
| Metallicity [Fe/H] | — |
| Stellar Age | — |
| Apparent Magnitude | V: 14.134 · G: 13.661 |
| System Architecture | 1 Star, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | — |
| Orbital Period | 3.313 days |
| Orbital Eccentricity (e) | Circular (0.00) |
| Orbital Inclination (i) | 86.6756° |
| Mean Bulk Density | 2.85 g/cm³ (17.6 km/s vesc) |
| Insolation Flux | — |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 540.200 LY (165.638 pc) |