Multi-planet system
HD 110067
Six sub-Neptunes locked in a perfect resonance chain — the most harmonious system yet found (2023).
- Planets
- 6
- Distance
- 104.9 ly
- Host
- K-type
System geometry
At a glance
- Hostname
- HD 110067
- Spectral type
- K0.0 V
- Distance
- 104.9 ly · 32.16 pc
- Stellar mass
- 0.80 M☉
- Stellar radius
- 0.79 R☉
- Luminosity
- 0.434 L☉
- Effective temp
- 5266 K
- Confirmed planets
- 6
- Habitable zone
- 0.626 – 0.903 AU
Top-down orbital diagram
Orbits to scale within this system. Dashed green = habitable-zone edges.
Planet positions are illustrative (evenly spaced in phase). For live motion see the 3D scene.
The planets
6 confirmed.
Sub-Neptune
HD 110067 b
- Orbit
- 0.079 AU
- Period
- 9.11 days
- Radius
- 2.20 R⊕
- Mass
- 5.69 M⊕
- Eq. temperature
- 800 K
- Eccentricity
- 0.000
- Discovered
- 2023 · Transit
Sub-Neptune
HD 110067 c
- Orbit
- 0.104 AU
- Period
- 13.67 days
- Radius
- 2.39 R⊕
- Mass
- 6.30 M⊕
- Eq. temperature
- 699 K
- Eccentricity
- 0.000
- Discovered
- 2023 · Transit
Sub-Neptune
HD 110067 d
- Orbit
- 0.136 AU
- Period
- 20.52 days
- Radius
- 2.85 R⊕
- Mass
- 8.52 M⊕
- Eq. temperature
- 602 K
- Eccentricity
- 0.000
- Discovered
- 2023 · Transit
Sub-Neptune
HD 110067 e
- Orbit
- 0.178 AU
- Period
- 30.79 days
- Radius
- 1.94 R⊕
- Mass
- 3.90 M⊕
- Eq. temperature
- 533 K
- Eccentricity
- 0.000
- Discovered
- 2023 · Transit
Sub-Neptune
HD 110067 f
- Orbit
- 0.216 AU
- Period
- 41.06 days
- Radius
- 2.60 R⊕
- Mass
- 5.04 M⊕
- Eq. temperature
- 489 K
- Eccentricity
- 0.000
- Discovered
- 2023 · Transit
Sub-Neptune
HD 110067 g
- Orbit
- 0.262 AU
- Period
- 54.77 days
- Radius
- 2.61 R⊕
- Mass
- 8.40 M⊕
- Eq. temperature
- 440 K
- Eccentricity
- 0.000
- Discovered
- 2023 · Transit
Compared to our Solar System
Each row shows the closest Solar-System analog by radius (log-space). Earth is pinned at the bottom as the constant frame of reference.
| Planet | Radius (R⊕) | Mass (M⊕) | Orbit (AU) | Period (days) | Eq temp (K) | Solar analog |
|---|---|---|---|---|---|---|
| HD 110067 b | 2.20 | 5.69 | 0.079 | 9.11 | 800 | Neptune |
| HD 110067 c | 2.39 | 6.30 | 0.104 | 13.67 | 699 | Neptune |
| HD 110067 d | 2.85 | 8.52 | 0.136 | 20.52 | 602 | Neptune |
| HD 110067 e | 1.94 | 3.90 | 0.178 | 30.79 | 533 | Earth |
| HD 110067 f | 2.60 | 5.04 | 0.216 | 41.06 | 489 | Neptune |
| HD 110067 g | 2.61 | 8.40 | 0.262 | 54.77 | 440 | Neptune |
| Earth (reference) | 1.00 | 1.00 | 1.000 | 365.25 | 255 | — |
Research status
◇ JWST observation status
No JWST programs are currently targeting planets in this system. The system may be observed in future cycles or by upcoming missions (Ariel, HWO, Roman).
Discovery timeline
- 2023
6 planets: b, c, d, e, f, g
via Transit
If you liked this
Other systems in the same theme:
Kepler-90
8 planets · 2766.6 ly · G2V
Eight known planets — first system to tie our solar system's count.
TOI-178
6 planets · 204.5 ly · K
Six planets in a precise resonance chain — orbital ratios like a cosmic clock.
HR 8799
4 planets · 134.5 ly · A5
Four giant planets directly imaged at infrared — orbiting a young A-type star.
Experience it
See HD 110067 in interactive 3D
Fly through the system, click any planet, watch orbits play out at 100× speed.
▶ Launch 3D scene