The HD 9446 System
HD 9446 is a planetary system in the constellation Triangulum hosting 2 confirmed exoplanets, about 164 light-years from Earth.
HD 9446: Star and Habitable Zone
HD 9446
- Spectral type
- G5 V
- Surface temperature
- 5,793 K (Sun: 5,772 K)
- Mass
- 1.00 M☉
- Radius
- 1.00 R☉
- Luminosity
- 1.1000 L☉
Habitable zone of HD 9446: 0.786–1.852 AU (conservative: 0.996–1.756 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 9446 System
Discovery History
The first planet found here, HD 9446 b, was discovered in 2009 using the radial velocity method.
Frequently Asked Questions About HD 9446
How many planets does HD 9446 have?
HD 9446 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the HD 9446 system habitable?
None of the known planets in HD 9446 orbit within the star's habitable zone.
How far away is HD 9446?
HD 9446 is about 164 light-years from Earth in the constellation Triangulum.
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