The HD 4732 System
HD 4732 is a planetary system in the constellation Cetus hosting 2 confirmed exoplanets around 2 stars, about 179 light-years from Earth. One of its planets orbits within the habitable zone, where liquid water could exist on a planetary surface.
Star HD 4732 and Its Habitable Zone
HD 4732
- Spectral type
- K0 IV
- Surface temperature
- 4,898 K (Sun: 5,772 K)
- Mass
- 1.39 M☉
- Radius
- 5.03 R☉
- Luminosity
- 13.1299 L☉
Habitable zone of HD 4732: 2.852–6.923 AU (conservative: 3.612–6.564 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 4732 System
Discovery History
The first planet found here, HD 4732 b, was discovered in 2012 using the radial velocity method.
Frequently Asked Questions About HD 4732
How many planets does HD 4732 have?
HD 4732 has 2 confirmed exoplanets distributed around its 2 stars. More may await discovery.
Are any planets in the HD 4732 system habitable?
One planet in the system orbits within the habitable zone, where liquid water could exist. Actual habitability depends on atmospheres and composition, which are not yet known.
How far away is HD 4732?
HD 4732 is about 179 light-years from Earth in the constellation Cetus.
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