Kepler-616 c
Kepler-616 c is a sub-Neptune orbiting Kepler-616 in the constellation Cygnus. It lies about 3,085 light-years from Earth and was discovered in 2016 using the transit method.
How Big Is Kepler-616 c?
Kepler-616 c has a radius of 3.41 times that of Earth.
Is Kepler-616 c in the Habitable Zone?
The position of Kepler-616 c relative to the habitable zone of Kepler-616 cannot be precisely determined from the available orbital data.
Habitable zone of Kepler-616: 0.723–1.704 AU (conservative: 0.915–1.615 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-616 c — one full orbit around Kepler-616 — lasts 90.4 Earth days, between the years of Mercury (88 days) and Earth (365 days).
How Was Kepler-616 c Discovered?
Kepler-616 c 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-616 c?
Kepler-616 c is 3,084.7 light-years (945.8 parsecs) from Earth. Light arriving here tonight left the planet about 3,085 years ago. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 54,290,720 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-616 c scores 0.40, ranking #484 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: Kepler-616
Kepler-616
- Surface temperature
- 5,753 K (Sun: 5,772 K)
- Mass
- 0.98 M☉
- Radius
- 0.97 R☉
- Age
- 3.9 billion years (Sun: 4.6)
The Kepler-616 Planetary System
Kepler-616 c is one of 3 known planets in the Kepler-616 system. Its siblings:
- Kepler-616 b (Mini Neptune)
- Kepler-616 d (Mini Neptune)
Kepler-616 c — Complete Data
| Radius | 3.410 Earth radii (0.304 Jupiter radii) |
|---|---|
| Orbital period | 90.41 days |
| Earth Similarity Index | 0.40 |
| Distance from Earth | 3,084.7 light-years (945.8 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-616 c
Is Kepler-616 c habitable?
Kepler-616 c is not known to orbit within the habitable zone of Kepler-616, and as a sub-Neptune it is an unlikely candidate for life as we know it.
How far away is Kepler-616 c?
Kepler-616 c is about 3,085 light-years from Earth in the constellation Cygnus. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 54,290,720 years to get there.
How big is Kepler-616 c compared to Earth?
Kepler-616 c has 3.41 times the radius of Earth.
How long is a year on Kepler-616 c?
One orbit around Kepler-616 takes 90.4 Earth days.
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