:INFO Super-earth around TOI-2260 It is 1.62 times Earth's radius, closest in size to Earth. A year there lasts 8.5 hours, on an orbit 40 times closer to its star than Mercury is to the Sun. Its equilibrium temperature is 2609 K, hotter than the surface of many stars. The host star TOI-2260 runs at 5534 K with 0.99 times the Sun's mass. :COUNTER 2609 K: hot enough to vaporise rock on the dayside :STATS [icon:TARGET] Radius | 1.62 Earth radii [icon:FIRE] Equilibrium temperature | 2609 K (measured) [icon:CLOCK] One year | 8.5 hours [icon:BOLT] Orbit radius | 0.0097 AU [icon:STAR] Host star | TOI-2260 at 5534 K [icon:USERS] Distance | 330 light-years [icon:TRENDING_DOWN] Starlight blocked | 0.025% at each transit :PATH What the transit gives The depth of the dip is the ratio of the two discs, so the radius follows. :CHECKLIST Known and unknown, as the archive has it [ ] A size. Yes. [ ] A mass. No. [ ] A density, so rock and gas can be told apart. No. [ ] A semi-major axis. Yes. [ ] A temperature someone observed rather than calculated. Yes. [ ] An eccentricity, so we know if the orbit is a circle. No. :NOTE A transit is a silhouette. It gives a width and says nothing about how heavy the thing casting it is, so this planet has no mass on record. :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. :LINK https://exoplanetarchive.ipac.caltech.edu/overview/TOI-2260%20b NASA Exoplanet Archive: the full record for TOI-2260 b