The HIP 111909 System
HIP 111909 is a planetary system in the constellation Grus hosting 2 confirmed exoplanets, about 287 light-years from Earth.
HIP 111909: Star and Habitable Zone
HIP 111909
- Spectral type
- K1 III
- Surface temperature
- 4,891 K (Sun: 5,772 K)
- Mass
- 1.28 M☉
- Radius
- 4.53 R☉
- Luminosity
- 10.4713 L☉
- Age
- 4.3 billion years (Sun: 4.6)
Habitable zone of HIP 111909: 2.547–6.186 AU (conservative: 3.227–5.865 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 HIP 111909 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| HIP 111909 b | Cold Gas Giant | 487 d | — | — | 2025 |
| HIP 111909 c | Cold Gas Giant | 894 d | — | — | 2025 |
Discovery History
The first planet found here, HIP 111909 b, was discovered in 2025 using the radial velocity method.
- 2025 — HIP 111909 b (Radial Velocity)
- 2025 — HIP 111909 c (Radial Velocity)
Frequently Asked Questions About HIP 111909
How many planets does HIP 111909 have?
HIP 111909 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the HIP 111909 system habitable?
None of the known planets in HIP 111909 orbit within the star's habitable zone.
How far away is HIP 111909?
HIP 111909 is about 287 light-years from Earth in the constellation Grus.
Explore the HIP 111909 system in the app
Browse, filter and compare 6,000+ exoplanets on iPhone, iPad and Apple Watch — with habitable-zone views, widgets and offline data.
