TIC 65612701 b

Astrophysical Synthesis & Habitability Characterization

TIC 65612701 b is a confirmed sub-neptune exoplanet orbiting the star TIC 65612701, located approximately 494.5 light-years (151.62 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 0.0718% across the stellar disk), this world measures 5.078 Earth radii (0.45 Jupiter radii) and has a measured mass of 22.7 Earth masses. Combining its mass and radius yields a mean bulk density of 0.96 g/cm³ (a low bulk density dominated by an extended hydrogen-helium gaseous envelope), a surface gravity of 0.88 g⊕ (8.63 m/s²), and an escape velocity of 23.7 km/s.

In its orbital architecture around TIC 65612701, TIC 65612701 b completes one full revolution every 10.225 Earth days.

☁️ Atmospheric Regime (Volatile / Gas Envelope): With a radius of 5.078 R⊕, TIC 65612701 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 65612701 is classified as a stellar host with an effective photospheric temperature of 5,692 K, a radius of 1.7371 R☉, a mass of 1.06 M☉, an estimated bolometric luminosity of 2.842 L☉. From Earth, TIC 65612701 shines at apparent V-band magnitude 9.448 (accessible to binoculars and small amateur telescopes) in the Northern celestial hemisphere.

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