Kepler-1664 b
Kepler-1664 b is a sub-Neptune orbiting Kepler-1664 in the constellation Draco. It lies about 2,044 light-years from Earth and was discovered in 2020 using the transit method.
How Big Is Kepler-1664 b?
Kepler-1664 b has a radius of 3.03 times that of Earth.
Is Kepler-1664 b in the Habitable Zone?
The position of Kepler-1664 b relative to the habitable zone of Kepler-1664 cannot be precisely determined from the available orbital data.
Orbit and Year Length
A year on Kepler-1664 b — one full orbit around Kepler-1664 — lasts 14.4 Earth days, shorter than Mercury's 88-day year.
How Was Kepler-1664 b Discovered?
Kepler-1664 b was discovered in 2020 using the transit method, with observations from Kepler.
The transit method watches a star for the tiny, regular dip in brightness that occurs when a planet crosses in front of it. The depth and timing of these dips reveal the planet's size and orbital period.
How Far Away Is Kepler-1664 b?
Kepler-1664 b is 2,044.0 light-years (626.7 parsecs) from Earth. Light arriving here tonight left the planet about 2,044 years ago. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 35,974,400 years to make the journey.
Earth Similarity Index
The Earth Similarity Index (ESI) scores how physically similar a planet is to Earth, from 0 to 1, based on radius, density, escape velocity and surface temperature. Kepler-1664 b scores 0.22, ranking #3,617 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: Kepler-1664
Kepler-1664
- Surface temperature
- 5,736 K (Sun: 5,772 K)
Planetary System
Kepler-1664 b is the only planet known to orbit Kepler-1664 so far.
Kepler-1664 b — Complete Data
| Radius | 3.033 Earth radii (0.271 Jupiter radii) |
|---|---|
| Orbital period | 14.39 days |
| Earth Similarity Index | 0.22 |
| Distance from Earth | 2,044.0 light-years (626.7 parsecs) |
| Constellation | Draco |
| Discovery method | Transit |
| Discovery facility | Kepler |
| Discovery year | 2020 |
Data: NASA Exoplanet Archive, last updated 2020-09-08. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About Kepler-1664 b
Is Kepler-1664 b habitable?
Kepler-1664 b is not known to orbit within the habitable zone of Kepler-1664, and as a sub-Neptune it is an unlikely candidate for life as we know it.
How far away is Kepler-1664 b?
Kepler-1664 b is about 2,044 light-years from Earth in the constellation Draco. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 35,974,400 years to get there.
How big is Kepler-1664 b compared to Earth?
Kepler-1664 b has 3.03 times the radius of Earth.
How long is a year on Kepler-1664 b?
One orbit around Kepler-1664 takes 14.4 Earth days — short enough that 25 of its years would fit into one Earth year.
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