HD 224018
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HD 224018 is a high-proper-motion G5 V type star. It has surface temperature of 5,784±60 K. HD 224018 has a yellow hue and is not visible to the naked eye with an apparent visual magnitude of 9.715±0.005. Based upon parallax measurements, it is located 347 light-years (106 parsecs) in distance from the Sun. The object is drifting towards the Sun with a radial velocity of −62.75±0.17 km/s.
Planetary system
In 2025, three exoplanets planets orbiting HD 224018 were discovered by both the radial velocity and transit methods. A fourth candidate planet is suspected.
| Companion (in order from star) | Mass | Semimajor axis (AU) | Orbital period (days) | Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | 0.013±0.003 MJ | 0.0952±00.0020 | 10.6413±0.0028 | 0.060+0.070 −0.040 | — | 0.0812+0.0571 −0.0509 RJ |
| c | ≥0.0327+0.0041 −0.0035 MJ | 0.217±0.005 | 36.57669+0.00019 −0.00017 | 0.02±0.02 | — | 0.216+0.006 −0.007 RJ |
| d | 0.013+0.006 −0.005 MJ | 0.53+0.06 −0.02 | 138.0731+27.6127 −0.0050 | 0.04+0.05 −0.04 | — | 0.21±0.01 RJ |
| e (unconfirmed) | ≥151+13 −14 M🜨 | 8.60+1.50 −1.60 | 9129.0+2499.0 −2479.0 | 0.60+0.07 −0.08 | — | — |