Kepler-410 A b
Kepler-410 A b is a mini-Neptune orbiting Kepler-410 A in the constellation Lyra. It lies about 481 light-years from Earth and was discovered in 2013 using the transit method.
How Big Is Kepler-410 A b?
Kepler-410 A b has a radius of 2.84 times that of Earth.
Is Kepler-410 A b in the Habitable Zone?
Kepler-410 A b orbits inside the inner edge of the habitable zone of Kepler-410 A. So close to its star, surface conditions are far too hot for liquid water.
Habitable zone of Kepler-410 A: 1.202–2.800 AU (conservative: 1.522–2.654 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-410 A b — one full orbit around Kepler-410 A — lasts 17.8 Earth days, shorter than Mercury's 88-day year. It orbits at an average distance of 0.123 AU — closer to its star than Mercury is to the Sun. Its orbit is mildly elliptical (eccentricity 0.17).
How Was Kepler-410 A b Discovered?
Kepler-410 A b was discovered in 2013 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-410 A b?
Kepler-410 A b is 481.2 light-years (147.5 parsecs) from Earth. Light arriving here tonight left the planet around the year 1545. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 8,469,120 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-410 A b scores 0.22, ranking #3,609 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: Kepler-410 A
Kepler-410 A b belongs to a system of 2 stars; it orbits Kepler-410 A.
Kepler-410 A
- Surface temperature
- 6,273 K (Sun: 5,772 K)
- Mass
- 1.21 M☉
- Radius
- 1.35 R☉
- Luminosity
- 2.7227 L☉
- Age
- 2.8 billion years (Sun: 4.6)
Planetary System
Kepler-410 A b is the only planet known to orbit Kepler-410 A so far.
Kepler-410 A b — Complete Data
| Radius | 2.838 Earth radii (0.253 Jupiter radii) |
|---|---|
| Orbital period | 17.83 days |
| Orbital distance | 0.123 AU |
| Eccentricity | 0.170 |
| Earth Similarity Index | 0.22 |
| Distance from Earth | 481.2 light-years (147.5 parsecs) |
| Constellation | Lyra |
| Discovery method | Transit |
| Discovery facility | Kepler |
| Discovery year | 2013 |
Data: NASA Exoplanet Archive, last updated 2014-05-14. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About Kepler-410 A b
Is Kepler-410 A b habitable?
No — Kepler-410 A b orbits too close to its star and is too hot for liquid water to exist on its surface.
How far away is Kepler-410 A b?
Kepler-410 A b is about 481 light-years from Earth in the constellation Lyra. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 8,469,120 years to get there.
How big is Kepler-410 A b compared to Earth?
Kepler-410 A b has 2.84 times the radius of Earth.
How long is a year on Kepler-410 A b?
One orbit around Kepler-410 A takes 17.8 Earth days — short enough that 20 of its years would fit into one Earth year.
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