:INFO
Ice giant around Kepler-453
It is 6.20 times Earth's radius, closest in size to Saturn, and 16.0 times Earth's mass. A year there lasts 240.50 days, on an orbit 2.0 times Mercury's distance from the Sun. Its equilibrium temperature is 250 K (derived from the star rather than measured), in the range where liquid water is possible. The host star Kepler-453 runs at 5527 K with 0.94 times the Sun's mass.

:CHECKLIST
What this planet has and has not got
[ ] Inside the habitable zone, computed from the star's luminosity. Yes.
[ ] A measured mass, not just a radius. Yes.
[ ] A measured temperature rather than one derived from the star. No.
[ ] Any detection of an atmosphere. Not recorded in the archive.

:STATS
[icon:TARGET] Radius | 6.20 Earth radii
[icon:CHART] Mass | 16.0 Earth masses
[icon:FIRE] Equilibrium temperature | 250 K (derived)
[icon:CLOCK] One year | 240.50 days
[icon:BOLT] Orbit radius | 0.7903 AU
[icon:STAR] Host star | Kepler-453 at 5527 K
[icon:USERS] Distance | 1444 light-years
[icon:TRENDING_DOWN] Starlight blocked | 0.465% at each transit

:PATH
What you get from the shadow
How deep the star dims fixes the planet's size relative to it.

:NOTE
The archive lists no measured equilibrium temperature for this planet. The 250 K quoted here is derived from the star's output and the orbital distance, assuming a third of the light is reflected. It is an estimate from two numbers, not an observation.

:NOTE
Two independent measurements sit behind this page: a dip in starlight for the size, and something else entirely for the mass. Together they make a density.

:NOTE
Found by Kepler in 2015. Kepler's method needed repetition, not brightness. It could find small planets around faint stars, provided they came round quickly enough to be seen twice.

:THREAD

:LINK
https://exoplanetarchive.ipac.caltech.edu/overview/Kepler-453%20b
NASA Exoplanet Archive: every published measurement of this planet