TOI-5713 b
Astrophysical Synthesis & Habitability Characterization
TOI-5713 b is a confirmed super-earth exoplanet orbiting the star TOI-5713, located approximately 133.3 light-years (40.87 parsecs) from the Solar System. First announced in 2024 by Transiting Exoplanet Survey Satellite (TESS) using the Transit detection technique (producing an estimated primary transit depth of 0.2941% across the stellar disk), this world measures 1.77 Earth radii and has a measured mass of 3.78 Earth masses. Combining its mass and radius yields a mean bulk density of 3.76 g/cm³ (an intermediate density indicative of a deep water-ice mantle or dense volatile envelope), a surface gravity of 1.21 g⊕ (11.87 m/s²), and an escape velocity of 16.3 km/s.
In its orbital architecture around TOI-5713, TOI-5713 b completes one full revolution every 10.442 Earth days at a semi-major axis of 0.06008 AU (orbiting interior to Mercury's 0.387 AU benchmark in the Solar System). Its mean orbital velocity is approximately 62.6 km/s (compared to Earth's 29.8 km/s). Its moderate orbital eccentricity of e = 0.24 carries the world between 0.0457 AU at periapsis and 0.0745 AU at apoapsis, driving measurable seasonal insolation cycles.
ℹ️ Thermal & Atmospheric Regime: Current photometric and spectroscopic constraints for TOI-5713 b place it outside the conservative habitable zone definition pending further atmospheric characterization.
The host star TOI-5713 is classified as a low-mass red dwarf of spectral type M3.5+/-0.5 with an effective photospheric temperature of 3,225 K, a radius of 0.2992 R☉, a mass of 0.2653 M☉, an estimated bolometric luminosity of 0.00869 L☉. Stellar evolution modeling indicates an estimated stellar age of 4.5 Gyr and a metallicity of [Fe/H] = -0.03 dex (near-solar heavy-element abundance). From Earth, TOI-5713 shines at apparent V-band magnitude 15.355 (faint and requiring research-grade or CCD telescopic photometry) in the Northern 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 | TOI-5713 |
| Spectral Type | M3.5+/-0.5 |
| Effective Temp (Teff) | 3,225 K |
| Stellar Radius | 0.2992 R☉ |
| Stellar Mass | 0.2653 M☉ |
| Bolometric Luminosity | 0.00869 L☉ |
| Metallicity [Fe/H] | -0.030 dex |
| Stellar Age | 4.500 Gyr |
| Apparent Magnitude | V: 15.355 · G: 14.010 |
| System Architecture | 1 Star, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | 0.060080 AU |
| Orbital Period | 10.442 days |
| Mean Orbital Velocity | 62.6 km/s |
| Orbital Eccentricity (e) | 0.24000 |
| Orbital Inclination (i) | 89.3700° |
| Mean Bulk Density | 3.76 g/cm³ (16.3 km/s vesc) |
| Insolation Flux | 2.2554 S⊕ (~3,070 W/m²) |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 133.300 LY (40.867 pc) |