Exoplanet · gas giant
HD 11343 c
HD 11343 c is a gas giant orbiting the star HIP 8541. Its year lasts 229 Earth days. It was discovered in 2022 by the Radial Velocity method.
| Host star | HIP 8541 |
|---|---|
| Distance | 505.9 light-years (155.1 pc) |
| Orbital period | 229 days |
| Orbital radius | 0.923 AU |
| Eccentricity | 0.169 |
| Radius | 13.9 R⊕ · 1.24 R♃ |
| Mass (minimum) | 256 M⊕ · 0.804 M♃ |
| Density | 0.523 g/cm³ |
| Equilibrium temperature | 613 K (340 °C) |
| Stellar flux received | 24 × Earth |
| Discovery method | Radial Velocity |
| Discovery year | 2022 |
| Discovered by | Multiple Observatories |
Habitable zone
Inside the inner edge of the habitable zone: it receives 24 times the light the Earth does, too hot to keep liquid water on its surface.
Its star in the sky
In the planet's sky its star is a disc 3.9° across: 7.4 times the Sun as we see it from Earth.
In the sky
Too faint for the naked eye (magnitude 7.88); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 36° N. South of latitude 36° S it never sets. It stands highest at midnight in October, the best time to observe it.
Light's journey
The light you see tonight set out around the year 1520. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 9.0 million years.
Planets in the same system
- HIP 8541 b 1,850-day orbit · 12.6 R⊕
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.