D:\SPACE\KEPLER_452_B>
SELECTED WORLDKepler-452 b
Kepler-452 · G2 host star · yellow-white Sun-like star · existence disputed
Star temperature and orbital distance set incoming energy, but stellar size is also required. This calculation uses a typical radius for the listed spectral type, 30% reflectivity and even heat redistribution. It is not a ground-temperature forecast: air, clouds, oceans and surface reflectivity could move the result by tens to hundreds of degrees.
The marker above the bar is a typical temperature for this star’s class. The line below is Earth’s Sun.
Kepler-452 is class G2. Like sunlight, it would look broadly white with a warm yellow cast.
Representative daytime geometry only; the star’s height in the sky changes through the day.
Most plausible case. Only if the signal is a planet. Later Kepler studies do not leave it statistically validated. If it is real, the star is Sun-like: 5757 K and 1.11 solar radii. From 1.05 AU the star spans about 0.57°, almost the Sun’s size in our sky, and the planet receives about 1.1 times Earth’s light. The year is 385 days, so the star rises and sets. Radius 1.63 Earth radii. Warm rock under familiar daylight, a bit heavier than Earth, with less ice than Earth. It is not an Earth twin, and it may not be a planet.
Dry case. Warm continents of rock and dust, little ice, a Sun-like sky. A dry super-Earth, not a red desert.
Thick-air case. A 1.6-radius world can be cloudy and volatile-rich. The Sun-like orbit does not remove that possibility.
Walking. About 24% heavier than Earth, modelled. No known sibling planet. The light would feel like a slightly brighter, slightly larger Sun. The star is magnitude 14, about 1,800 light-years away. The picture is conditional on the signal.
Based on: Jenkins et al. 2015; Mullally et al. and Burke et al. dispute the validation; Teff 5757 K, R 1.11 Rsun, S 1.1, Rp 1.63, a 1.046 AU, period 385 days
Kepler-452 b circles Kepler-452. Use Higher and Lower to move your viewpoint above, through and below the orbital plane, and − / + to zoom. Orbit shapes and spacing are schematic.
Positions, distances, and system parameters come from the NASA Exoplanet Archive composite table, queried 25 Sep 2026. GJ 273 b uses the parallax in that row, 12.4 light-years. The 45 worlds follow Bohl, Lawrence, Lowry, and Kaltenegger.
