The HD 219134 System
HD 219134 is a planetary system in the constellation Cassiopeia hosting 6 confirmed exoplanets, about 21 light-years from Earth.
Size Comparison: The Planets of HD 219134
Planets without a measured radius are not shown.
HD 219134: Star and Habitable Zone
HD 219134
- Surface temperature
- 4,699 K (Sun: 5,772 K)
- Mass
- 0.81 M☉
- Radius
- 0.78 R☉
- Luminosity
- 0.2646 L☉
- Age
- 11.0 billion years (Sun: 4.6)
Habitable zone of HD 219134: 0.408–1.000 AU (conservative: 0.517–0.948 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 ›
All 6 Planets in the HD 219134 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| HD 219134 b | Super Earth | 3.1 d | 1.60 R⊕ | 0.28 | 2015 |
| HD 219134 c | Super Earth | 6.8 d | 1.51 R⊕ | 0.30 | 2015 |
| HD 219134 d | Super Earth | 47 d | 1.61 R⊕ | 0.51 | 2015 |
| HD 219134 f | Super Earth | 23 d | 1.31 R⊕ | 0.39 | 2015 |
| HD 219134 g | Neptune-like | 94 d | — | 0.54 | 2015 |
| HD 219134 h | Cold Gas Giant | 2,247 d | — | 0.10 | 2015 |
Discovery History
The first planet found here, HD 219134 b, was discovered in 2015 using the radial velocity method.
- 2015 — HD 219134 b (Radial Velocity)
- 2015 — HD 219134 c (Radial Velocity)
- 2015 — HD 219134 d (Radial Velocity)
- 2015 — HD 219134 f (Radial Velocity)
- 2015 — HD 219134 g (Radial Velocity)
- 2015 — HD 219134 h (Radial Velocity)
Frequently Asked Questions About HD 219134
How many planets does HD 219134 have?
HD 219134 has 6 confirmed exoplanets. More may await discovery.
Are any planets in the HD 219134 system habitable?
None of the known planets in HD 219134 orbit within the star's habitable zone.
How far away is HD 219134?
HD 219134 is about 21 light-years from Earth in the constellation Cassiopeia.
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