TIC 249022743 b
Astrophysical Synthesis & Habitability Characterization
TIC 249022743 b is a confirmed sub-neptune exoplanet orbiting the star TIC 249022743, located approximately 1293.1 light-years (396.46 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 0.1324% across the stellar disk), this world measures 4.796 Earth radii (0.43 Jupiter radii) and has a measured mass of 20.6 Earth masses. Combining its mass and radius yields a mean bulk density of 1.03 g/cm³ (a low bulk density dominated by an extended hydrogen-helium gaseous envelope), a surface gravity of 0.9 g⊕ (8.83 m/s²), and an escape velocity of 23.2 km/s.
In its orbital architecture around TIC 249022743, TIC 249022743 b completes one full revolution every 2.257 Earth days.
☁️ Atmospheric Regime (Volatile / Gas Envelope): With a radius of 4.796 R⊕, TIC 249022743 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 249022743 is classified as a stellar host with an effective photospheric temperature of 5,568 K, a radius of 1.2084 R☉, a mass of 1 M☉, an estimated bolometric luminosity of 1.259 L☉. From Earth, TIC 249022743 shines at apparent V-band magnitude 12.705 (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 249022743 |
| Spectral Type | Unclassified |
| Effective Temp (Teff) | 5,568 K |
| Stellar Radius | 1.2084 R☉ |
| Stellar Mass | 1.0000 M☉ |
| Bolometric Luminosity | 1.259 L☉ |
| Metallicity [Fe/H] | — |
| Stellar Age | — |
| Apparent Magnitude | V: 12.705 · G: 12.518 |
| System Architecture | 1 Star, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | — |
| Orbital Period | 2.257 days |
| Orbital Eccentricity (e) | Circular (0.00) |
| Orbital Inclination (i) | 86.4200° |
| Mean Bulk Density | 1.03 g/cm³ (23.2 km/s vesc) |
| Insolation Flux | — |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 1293.100 LY (396.460 pc) |