Kepler-90 i
Planet· orbits the Sun
Kepler-90 i — the EIGHTH planet, an Earth-to-super-Earth-size world (1.32 R⊕) on a 14-day orbit. Its 2017 discovery, by a Google neural network sifting Kepler's data, made Kepler-90 the first star to equal the Sun's eight planets. Size measured; mass size-estimated, so no density is quoted. Never imaged.
Open in 3D viewSee Kepler-90 i in the live, interactive 3D map
Key facts
Radius
8,410 km
1.32× wider than Earth
Year
14.45 Earth days
Distance from Kepler-90
0.12 AU
Science
Physical
- Radius
- 8,410 km · 1.32× wider than Earth
Orbital
- Semi-major axis
- 0.12 AU
- Eccentricity
- 0
- Inclination
- 0.00 °
- Orbital period
- 14.4 days
- Perihelion
- 0.12 AU
- Aphelion
- 0.12 AU
- Mean orbital velocity
- 90.5 km/s
Composition
- Bulk composition
- An Earth-to-super-Earth world (1.32 R⊕) uncovered in 2017 when a Google neural network re-analysed Kepler's data — the eighth planet that made Kepler-90 the Sun's equal. Size measured; mass size-estimated, so no density is quoted.
- Surface appearance
- Appearance based on NASA/JPL-Caltech's artist's concept. No spacecraft has imaged this world, so its real appearance is unknown — The surface shown is an artistic representation, shown only in Vision mode; Realism shows a plain spectral colour.
Radiation & temperature
- Insolation
- 123 S⊕ · 123× the sunlight Earth receives
- Equilibrium temperature
- 709 K (436 °C)
Discovery & history
- Method
- Transit detection
- Name
- Designated 'i' under the IAU convention that letters a star's planets 'b', 'c', 'd'... in the order found (the star is the unwritten 'a'); no IAU proper name has been assigned.
Found in 2017 when a Google/NASA machine-learning search spotted its faint, previously-missed transit signal in the Kepler light curve — the record-tying eighth planet.
Images
No telescope has imaged this world — it is known only from the tiny dip it makes crossing its star. Only its host system has been pictured (see the system view); its true surface appearance is unknown.