TOI-2287 b
Astrophysical Synthesis & Habitability Characterization
TOI-2287 b is a confirmed super-earth exoplanet orbiting the star TOI-2287, located approximately 309.7 light-years (94.97 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 0.0189% across the stellar disk), this world measures 1.8 Earth radii and has a measured mass of 3.89 Earth masses. Combining its mass and radius yields a mean bulk density of 3.68 g/cm³ (an intermediate density indicative of a deep water-ice mantle or dense volatile envelope), a surface gravity of 1.2 g⊕ (11.77 m/s²), and an escape velocity of 16.4 km/s.
In its orbital architecture around TOI-2287, TOI-2287 b completes one full revolution every 11.812 Earth days. The orbit is modeled as circular (e = 0.00), maintaining a constant stellar distance throughout its year.
⚠️ Thermal Regime (Irradiated / Hot Zone): At an equilibrium temperature of 899 K (+626°C / +1159°F) and receiving 154.32 S⊕ (~210,030 W/m²), TOI-2287 b orbits interior to the runaway greenhouse boundary where surface liquid water cannot persist.
The host star TOI-2287 is classified as a stellar host with an effective photospheric temperature of 6,037 K, a radius of 1.2011 R☉, a mass of 1.12 M☉, an estimated bolometric luminosity of 1.719 L☉. From Earth, TOI-2287 shines at apparent V-band magnitude 9.099 (accessible to binoculars and small amateur telescopes) 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-2287 |
| Spectral Type | Unclassified |
| Effective Temp (Teff) | 6,037 K |
| Stellar Radius | 1.2011 R☉ |
| Stellar Mass | 1.1200 M☉ |
| Bolometric Luminosity | 1.719 L☉ |
| Metallicity [Fe/H] | — |
| Stellar Age | — |
| Apparent Magnitude | V: 9.099 · G: 8.961 |
| System Architecture | 1 Star, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | — |
| Orbital Period | 11.812 days |
| Orbital Eccentricity (e) | 0.00000 |
| Orbital Inclination (i) | — |
| Mean Bulk Density | 3.68 g/cm³ (16.4 km/s vesc) |
| Insolation Flux | 154.3200 S⊕ (~210,030 W/m²) |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 309.700 LY (94.969 pc) |