TIC 24750448 b

Astrophysical Synthesis & Habitability Characterization

TIC 24750448 b is a confirmed sub-neptune exoplanet orbiting the star TIC 24750448, located approximately 581 light-years (178.15 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 0.098% across the stellar disk), this world measures 2.437 Earth radii and has a measured mass of 6.51 Earth masses. Combining its mass and radius yields a mean bulk density of 2.48 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 18.3 km/s.

In its orbital architecture around TIC 24750448, TIC 24750448 b completes one full revolution every 3.592 Earth days.

☁️ Atmospheric Regime (Volatile / Gas Envelope): With a radius of 2.437 R⊕, TIC 24750448 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 24750448 is classified as a stellar host with an effective photospheric temperature of 4,545 K, a radius of 0.7136 R☉, a mass of 0.69 M☉, an estimated bolometric luminosity of 0.195 L☉. From Earth, TIC 24750448 shines at apparent V-band magnitude 13.518 (faint and requiring research-grade or CCD telescopic photometry) in the Southern celestial hemisphere. The TIC 24750448 system is a multi-planet architecture hosting 2 confirmed worlds, with TIC 24750448 b sharing its stellar neighborhood alongside TIC 24750448 c.

Discovery Facility: Transiting Exoplanet Survey Satellite (TESS) · Catalogue Source: NASA Exoplanet Archive (IPAC / Caltech).