Exoplanet · gas giant
HD 160691 c
HD 160691 c is a gas giant orbiting the star Cervantes. Its year lasts 3,950 Earth days. It was discovered in 2004 by the Radial Velocity method.
| Host star | Cervantes |
|---|---|
| Distance | 50.9 light-years (15.6 pc) |
| Orbital period | 10.8 years |
| Orbital radius | 4.17 AU |
| Eccentricity | 0.039 |
| Mass | 1,400 M⊕ · 4.4 M♃ |
| Equilibrium temperature | 157 K (-116 °C) |
| Stellar flux received | 0.109 × Earth |
| Discovery method | Radial Velocity |
| Discovery year | 2004 |
| Discovered by | Anglo-Australian Telescope |
Habitable zone
Beyond the habitable zone: it receives only %11 of the light the Earth does, a frozen world.
Its star in the sky
In the planet's sky its star is a disc 0.17° across: 0.32 times the Sun as we see it from Earth.
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.12). Visible from the whole Southern Hemisphere and north to latitude 38° N. South of latitude 38° S it never sets. It stands highest at midnight in June, the best time to observe it.
Light's journey
The light you see tonight set out around the year 1975. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 902 thousand years.
Planets in the same system
- HD 160691 d 9.64-day orbit · 3.23 R⊕
- HD 160691 e 308-day orbit
- HD 160691 b 645-day orbit
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.