NASA (Exoplanet Catalog artwork)Kepler-413b
A wobbling circumbinary world with wildly erratic seasons
Overview
Kepler-413b is a circumbinary planet orbiting stars Kepler-413 A and Kepler-413 B, which respectively are K and M dwarfs. These host stars orbit each other with orbital period of 10.1 days.
Source: Wikipedia
NASA: Kepler-413 b is a gas giant exoplanet that orbits a K-type star. Its mass is 0.211 Jupiters, it takes 66.3 days to complete one orbit of its star, and is 0.3553 AU from its star. Its discovery was announced in 2014.
Why it matters
- Orbits a pair of orange and red dwarfs every 66 days, but its transits appear and disappear for years.
- Its orbit precesses every 11 years and its spin axis may tilt by 30 degrees, producing chaotic seasons.
- Discovered in 2014 as an example of how misaligned circumbinary systems can be.
NASA puts it this way: “Kepler-413 b is a gas giant exoplanet that orbits a K-type star. Its mass is 0.211 Jupiters, it takes 66.3 days to complete one orbit of its star, and is 0.3553 AU from its star. Its discovery was announced in 2014.”
Discovery & system
- Discovered
- 2014 · Transit · Kepler
- Discovery paper
- Kostov et al. 2014
- Discoverers
- Kepler Space Telescope
- Host star
- Kepler-413 · 4,700 K · 0.82 M☉
- System
- 1 known planet, 2 stars (circumbinary)
The system
| World | Period | Distance | Radius | Mass | Temp. |
|---|---|---|---|---|---|
| Kepler-413 b | 66.3 d | 0.355 AU | 0.39 R♃ | 67 M⊕ | 335 K |
By the numbers
- Radius
- 0.39 R♃4.3 R⊕
- Mass
- 67 M⊕400.14 ×10²⁴ kg
- Orbital period
- 66.3 d0.18 yr
- Distance from star
- 0.355 AU53 million km
- Eccentricity
- 0.118elliptical
- Equilibrium temp.
- 335 K62 °C
- Starlight received
- 3 × Earth
- Distance from Earth
- 2,764 ly847.5 pc
- Density
- 3.2 g/cm³0.58 × Earth
Sources
Image: NASA (Exoplanet Catalog artwork) · NASA media: generally free of copyright · image page
Text: Wikipedia (CC BY-SA 4.0). Taglines and highlights are editorial.