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The HD 1605 System

2 planets 1 in habitable zone Andromeda

HD 1605 is a planetary system in the constellation Andromeda hosting 2 confirmed exoplanets, about 290 light-years from Earth. One of its planets orbits within the habitable zone, where liquid water could exist on a planetary surface.

HD 1605: Star and Habitable Zone

HD 1605

Spectral type
K1 IV
Surface temperature
4,915 K (Sun: 5,772 K)
Mass
1.33 M☉
Radius
3.49 R☉
Luminosity
6.4565 L☉
Age
4.4 billion years (Sun: 4.6)
HD 1605 b HD 1605 c
Too hot Optimistic habitable zone Conservative habitable zone Too cold

Habitable zone of HD 1605: 1.998–4.848 AU (conservative: 2.531–4.596 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 1605 System

PlanetTypeOrbitRadiusESIDiscovered
HD 1605 bCold Gas Giant577 d0.302015
HD 1605 c HZCold Gas Giant2,149 d0.352015

Discovery History

The first planet found here, HD 1605 b, was discovered in 2015 using the radial velocity method.

Frequently Asked Questions About HD 1605

How many planets does HD 1605 have?

HD 1605 has 2 confirmed exoplanets. More may await discovery.

Are any planets in the HD 1605 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 1605?

HD 1605 is about 290 light-years from Earth in the constellation Andromeda.

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