The HD 31527 System
HD 31527 is a planetary system in the constellation Lepus hosting 3 confirmed exoplanets, about 125 light-years from Earth.
HD 31527: Star and Habitable Zone
HD 31527
- Spectral type
- G2 V
- Surface temperature
- 5,898 K (Sun: 5,772 K)
- Mass
- 0.96 M☉
- Luminosity
- 1.2000 L☉
Habitable zone of HD 31527: 0.816–1.917 AU (conservative: 1.034–1.817 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 3 Planets in the HD 31527 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| HD 31527 b | Neptune-like | 17 d | — | 0.22 | 2019 |
| HD 31527 c | Neptune-like | 51 d | — | 0.25 | 2019 |
| HD 31527 d | Neptune-like | 272 d | — | 0.55 | 2019 |
Discovery History
The first planet found here, HD 31527 b, was discovered in 2019 using the radial velocity method.
- 2019 — HD 31527 b (Radial Velocity)
- 2019 — HD 31527 c (Radial Velocity)
- 2019 — HD 31527 d (Radial Velocity)
Frequently Asked Questions About HD 31527
How many planets does HD 31527 have?
HD 31527 has 3 confirmed exoplanets. More may await discovery.
Are any planets in the HD 31527 system habitable?
None of the known planets in HD 31527 orbit within the star's habitable zone.
How far away is HD 31527?
HD 31527 is about 125 light-years from Earth in the constellation Lepus.
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