The HD 24040 System
HD 24040 is a planetary system in the constellation Taurus hosting 2 confirmed exoplanets, about 152 light-years from Earth. One of its planets orbits within the habitable zone, where liquid water could exist on a planetary surface.
HD 24040: Star and Habitable Zone
HD 24040
- Surface temperature
- 5,802 K (Sun: 5,772 K)
- Mass
- 1.11 M☉
- Radius
- 1.30 R☉
Habitable zone of HD 24040: 0.982–2.313 AU (conservative: 1.244–2.193 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 24040 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| HD 24040 b | Cold Gas Giant | 3,668 d | — | 0.14 | 2006 |
| HD 24040 c HZ | Cold Gas Giant | 515 d | — | 0.43 | 2021 |
Discovery History
The first planet found here, HD 24040 b, was discovered in 2006 using the radial velocity method. The most recent addition, HD 24040 c, followed in 2021.
- 2006 — HD 24040 b (Radial Velocity)
- 2021 — HD 24040 c (Radial Velocity)
Frequently Asked Questions About HD 24040
How many planets does HD 24040 have?
HD 24040 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the HD 24040 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 24040?
HD 24040 is about 152 light-years from Earth in the constellation Taurus.
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