The HD 4203 System
HD 4203 is a planetary system in the constellation Pisces hosting 2 confirmed exoplanets, about 265 light-years from Earth. One of its planets orbits within the habitable zone, where liquid water could exist on a planetary surface.
HD 4203: Star and Habitable Zone
HD 4203
- Surface temperature
- 5,596 K (Sun: 5,772 K)
- Mass
- 1.25 M☉
- Radius
- 1.42 R☉
Habitable zone of HD 4203: 1.010–2.393 AU (conservative: 1.280–2.269 AU), per Kopparapu et al. (2014). Earth orbits the Sun at 1 AU.
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All 2 Planets in the HD 4203 System
Discovery History
The first planet found here, HD 4203 b, was discovered in 2001 using the radial velocity method. The most recent addition, HD 4203 c, followed in 2014.
Frequently Asked Questions About HD 4203
How many planets does HD 4203 have?
HD 4203 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the HD 4203 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 4203?
HD 4203 is about 265 light-years from Earth in the constellation Pisces.
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