Kepler-953 b
Kepler-953 b is a Neptune-like planet orbiting Kepler-953 in the constellation Cygnus. It lies about 844 light-years from Earth and was discovered in 2016 using the transit method.
How Big Is Kepler-953 b?
Kepler-953 b has a radius of 4.21 times that of Earth.
Is Kepler-953 b in the Habitable Zone?
The position of Kepler-953 b relative to the habitable zone of Kepler-953 cannot be precisely determined from the available orbital data.
Habitable zone of Kepler-953: 0.667–1.588 AU (conservative: 0.844–1.505 AU), per Kopparapu et al. (2014). Earth orbits the Sun at 1 AU.
See the full interactive habitable-zone view in the Exoplanet Explorer app ›
Orbit and Year Length
A year on Kepler-953 b — one full orbit around Kepler-953 — lasts 88.4 Earth days, between the years of Mercury (88 days) and Earth (365 days).
How Was Kepler-953 b Discovered?
Kepler-953 b was discovered in 2016 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-953 b?
Kepler-953 b is 844.4 light-years (258.9 parsecs) from Earth. Light arriving here tonight left the planet around the year 1182. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 14,861,440 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-953 b scores 0.36, ranking #701 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: Kepler-953
Kepler-953
- Surface temperature
- 5,416 K (Sun: 5,772 K)
- Mass
- 0.95 M☉
- Radius
- 0.99 R☉
- Age
- 8.7 billion years (Sun: 4.6)
The Kepler-953 Planetary System
Kepler-953 b is one of 2 known planets in the Kepler-953 system. Its siblings:
- Kepler-953 c (Terrestrial)
Kepler-953 b — Complete Data
| Radius | 4.210 Earth radii (0.376 Jupiter radii) |
|---|---|
| Orbital period | 88.41 days |
| Earth Similarity Index | 0.36 |
| Distance from Earth | 844.4 light-years (258.9 parsecs) |
| Constellation | Cygnus |
| Discovery method | Transit |
| Discovery facility | Kepler |
| Discovery year | 2016 |
Data: NASA Exoplanet Archive, last updated 2016-05-06. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About Kepler-953 b
Is Kepler-953 b habitable?
Kepler-953 b is not known to orbit within the habitable zone of Kepler-953, and as a Neptune-like planet it is an unlikely candidate for life as we know it.
How far away is Kepler-953 b?
Kepler-953 b is about 844 light-years from Earth in the constellation Cygnus. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 14,861,440 years to get there.
How big is Kepler-953 b compared to Earth?
Kepler-953 b has 4.21 times the radius of Earth.
How long is a year on Kepler-953 b?
One orbit around Kepler-953 takes 88.4 Earth days.
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