:INFO
Terrestrial around GJ 367
It is 0.74 times Earth's radius, closest in size to Venus, and 0.5 times Earth's mass, at 6.90 g/cm3, denser than Earth. A year there lasts 7.7 hours. Its equilibrium temperature is 1329 K, hot enough to melt lead. The host star GJ 367 runs at 3535 K with 0.45 times the Sun's mass.

:COUNTER
7.7 hours: one full year, start to finish

:STATS
[icon:TARGET] Radius | 0.74 Earth radii
[icon:CHART] Mass | 0.5 Earth masses
[icon:FIRE] Equilibrium temperature | 1329 K (measured)
[icon:CLOCK] One year | 7.7 hours
[icon:STAR] Host star | GJ 367 at 3535 K
[icon:USERS] Distance | 31 light-years
[icon:TRENDING_DOWN] Starlight blocked | 0.022% at each transit

:CHECKLIST
Known and unknown, as the archive has it
[ ] A size. Yes.
[ ] A weight, not just a width. Yes.
[ ] A density, the one clue to composition. Yes.
[ ] A semi-major axis. No.
[ ] A temperature someone observed rather than calculated. Yes.
[ ] An eccentricity, so the orbit shape is known. Yes.

:PATH
What the transit gives
The depth of the dip is the ratio of the two discs, so the radius follows.

:NOTE
The size came from a crossing, the mass did not. That pairing is uncommon and it is what lets anyone say whether this is rock or gas.

:NOTE
GJ 367 has 3 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 2021. 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/GJ%20367%20b
NASA Exoplanet Archive: every published measurement of this planet