Kepler-90 d
Planet· orbits the Sun
Kepler-90 d — a sub-Neptune (2.87 R⊕) on a 60-day orbit, the first of the larger middle planets. Size measured; mass size-estimated, so no density is quoted. Never imaged.
Open in 3D viewSee Kepler-90 d in the live, interactive 3D map
Key facts
Radius
18,285 km
2.87× wider than Earth
Year
59.74 Earth days
Distance from Kepler-90
0.32 AU
Science
Physical
- Radius
- 18,285 km · 2.87× wider than Earth
Orbital
- Semi-major axis
- 0.32 AU
- Eccentricity
- 0
- Inclination
- 0.00 °
- Orbital period
- 59.7 days
- Perihelion
- 0.32 AU
- Aphelion
- 0.32 AU
- Mean orbital velocity
- 58.3 km/s
Composition
- Bulk composition
- A sub-Neptune (2.87 R⊕), likely volatile-rich. Size measured; mass size-estimated, so no density is quoted.
- Cloud appearance
- Appearance based on NASA/JPL-Caltech's artist's concept. No spacecraft has imaged this world, so its real appearance is unknown — The banded clouds shown are a representation of its class, shown only in Vision mode; Realism shows a plain spectral colour.
Radiation & temperature
- Insolation
- 17.3 S⊕ · 17.3× the sunlight Earth receives
- Equilibrium temperature
- 520 K (247 °C)
Discovery & history
- Method
- Transit detection
- Name
- Designated 'd' 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.
One of the seven planets confirmed around Kepler-90 in 2013.
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.