:INFO
Super-earth around LTT 1445 A
It is 1.34 times Earth's radius, closest in size to Earth, and 2.7 times Earth's mass, at 6.20 g/cm3, denser than Earth. A year there lasts 5.36 days, on an orbit 10 times closer to its star than Mercury is to the Sun. Its equilibrium temperature is 431 K, hotter than any desert.

:STATS
[icon:TARGET] Radius | 1.34 Earth radii
[icon:CHART] Mass | 2.7 Earth masses
[icon:FIRE] Equilibrium temperature | 431 K (measured)
[icon:CLOCK] One year | 5.36 days
[icon:BOLT] Orbit radius | 0.0381 AU
[icon:USERS] Distance | 22 light-years
[icon:TRENDING_DOWN] Starlight blocked | 0.205% at each transit

:COUNTER
22.4 light-years: close enough to be a follow-up target

:TIMELINE
🔭🪐📅
2019-01-01 | LTT 1445 A b
2022-01-01 | LTT 1445 A c

:PATH
What you get from the shadow
The fraction of starlight blocked sets the radius against the star's.

:NOTE
LTT 1445 A has 2 known planets. Multi-planet systems are where orbital dynamics can be measured rather than assumed.

:NOTE
Found by Transiting Exoplanet Survey Satellite (TESS) in 2019. 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
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.

:LINK
https://exoplanetarchive.ipac.caltech.edu/overview/LTT%201445%20A%20b
NASA Exoplanet Archive: source data, including the values not used here