TIC 24750448 c

Astrophysical Synthesis & Habitability Characterization

TIC 24750448 c 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 0.1576% across the stellar disk), this world measures 3.09 Earth radii (0.28 Jupiter radii) and has a measured mass of 9.75 Earth masses. Combining its mass and radius yields a mean bulk density of 1.82 g/cm³ (a low bulk density dominated by an extended hydrogen-helium gaseous envelope), a surface gravity of 1.02 g⊕ (10 m/s²), and an escape velocity of 19.9 km/s.

In its orbital architecture around TIC 24750448, TIC 24750448 c completes one full revolution every 10.144 Earth days.

☁️ Atmospheric Regime (Volatile / Gas Envelope): With a radius of 3.090 R⊕, TIC 24750448 c 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 c sharing its stellar neighborhood alongside TIC 24750448 b.

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