The HD 224018 System
HD 224018 is a planetary system in the constellation Aquarius hosting 3 confirmed exoplanets, about 344 light-years from Earth.
Size Comparison: The Planets of HD 224018
HD 224018: Star and Habitable Zone
HD 224018
- Spectral type
- G V
- Surface temperature
- 5,784 K (Sun: 5,772 K)
- Mass
- 1.01 M☉
- Radius
- 1.15 R☉
- Luminosity
- 1.3300 L☉
- Age
- 7.0 billion years (Sun: 4.6)
Habitable zone of HD 224018: 0.865–2.038 AU (conservative: 1.096–1.932 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 224018 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| HD 224018 b | Terrestrial | 11 d | 0.91 R⊕ | — | 2025 |
| HD 224018 c | Super Earth | 37 d | 2.42 R⊕ | — | 2025 |
| HD 224018 d | Mini Neptune | 138 d | 2.40 R⊕ | — | 2025 |
Discovery History
The first planet found here, HD 224018 b, was discovered in 2025 using the radial velocity method.
- 2025 — HD 224018 b (Radial Velocity)
- 2025 — HD 224018 c (Transit)
- 2025 — HD 224018 d (Transit)
Frequently Asked Questions About HD 224018
How many planets does HD 224018 have?
HD 224018 has 3 confirmed exoplanets. More may await discovery.
Are any planets in the HD 224018 system habitable?
None of the known planets in HD 224018 orbit within the star's habitable zone.
How far away is HD 224018?
HD 224018 is about 344 light-years from Earth in the constellation Aquarius.
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