The HD 11964 System
HD 11964 is a planetary system in the constellation Cetus hosting 2 confirmed exoplanets around 2 stars, about 109 light-years from Earth.
Star HD 11964 and Its Habitable Zone
HD 11964
- Surface temperature
- 5,303 K (Sun: 5,772 K)
- Mass
- 0.91 M☉
- Radius
- 2.01 R☉
- Luminosity
- 2.8777 L☉
Habitable zone of HD 11964: 1.308–3.128 AU (conservative: 1.657–2.965 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 2 Planets in the HD 11964 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| HD 11964 b | Cold Gas Giant | 1,945 d | — | 0.27 | 2005 |
| HD 11964 c | Neptune-like | 38 d | — | 0.16 | 2008 |
Discovery History
The first planet found here, HD 11964 b, was discovered in 2005 using the radial velocity method. The most recent addition, HD 11964 c, followed in 2008.
- 2005 — HD 11964 b (Radial Velocity)
- 2008 — HD 11964 c (Radial Velocity)
Frequently Asked Questions About HD 11964
How many planets does HD 11964 have?
HD 11964 has 2 confirmed exoplanets distributed around its 2 stars. More may await discovery.
Are any planets in the HD 11964 system habitable?
None of the known planets in HD 11964 orbit within the star's habitable zone.
How far away is HD 11964?
HD 11964 is about 109 light-years from Earth in the constellation Cetus.
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