:INFO Mini-neptune around TOI-1246 It is 3.51 times Earth's radius, closest in size to Neptune, and 14.5 times Earth's mass, at 1.83 g/cm3, less dense than Earth. A year there lasts 37.93 days, on an orbit 2 times closer to its star than Mercury is to the Sun. Its equilibrium temperature is 464 K, hotter than any desert. The host star TOI-1246 runs at 5213 K with 0.89 times the Sun's mass. :JOURNEY TOI-1246 from the inside out 1 0.049 AU 2 0.061 AU 3 0.132 AU 4 0.212 AU :STATS [icon:TARGET] Radius | 3.51 Earth radii [icon:CHART] Mass | 14.5 Earth masses [icon:FIRE] Equilibrium temperature | 464 K (measured) [icon:CLOCK] One year | 37.93 days [icon:BOLT] Orbit radius | 0.2120 AU [icon:STAR] Host star | TOI-1246 at 5213 K [icon:USERS] Distance | 553 light-years [icon:TRENDING_DOWN] Starlight blocked | 0.138% at each transit :PATH What you get from the shadow How deep the star dims fixes the planet's size relative to it. :NOTE TOI-1246 has 4 known planets. Systems like this are the ones where architecture can be studied instead of guessed at. :NOTE Found by Transiting Exoplanet Survey Satellite (TESS) in 2022. TESS scans most of the sky in 27-day stretches, so it favours bright nearby stars and short orbits over the faint distant ones Kepler specialised in. :NOTE Size from the shadow, mass from elsewhere. Most transiting planets never get the second half, and without it composition stays a guess. :LINK https://exoplanetarchive.ipac.caltech.edu/overview/TOI-1246%20e Every parameter ever published for TOI-1246 e, at the NASA Exoplanet Archive