TIC 294329732 b

Astrophysical Synthesis & Habitability Characterization

TIC 294329732 b is a confirmed sub-neptune exoplanet orbiting the star TIC 294329732, located approximately 617.5 light-years (189.33 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 0.0428% across the stellar disk), this world measures 2.077 Earth radii and has a measured mass of 4.97 Earth masses. Combining its mass and radius yields a mean bulk density of 3.06 g/cm³ (an intermediate density indicative of a deep water-ice mantle or dense volatile envelope), a surface gravity of 1.15 g⊕ (11.28 m/s²), and an escape velocity of 17.3 km/s.

In its orbital architecture around TIC 294329732, TIC 294329732 b completes one full revolution every 9.757 Earth days.

ℹ️ Thermal & Atmospheric Regime: Current photometric and spectroscopic constraints for TIC 294329732 b place it outside the conservative habitable zone definition pending further atmospheric characterization.

The host star TIC 294329732 is classified as a stellar host with an effective photospheric temperature of 5,202 K, a radius of 0.9202 R☉, a mass of 0.89 M☉, an estimated bolometric luminosity of 0.556 L☉. Stellar evolution modeling indicates a metallicity of [Fe/H] = 0.228 dex (metal-rich relative to the Sun). From Earth, TIC 294329732 shines at apparent V-band magnitude 12.23 (faint and requiring research-grade or CCD telescopic photometry) in the Southern celestial hemisphere.

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