Exoplanet · gas giant
Oph 11 b
Oph 11 b is a gas giant orbiting the star Oph 11. Its year lasts 7.30 × 10⁶ Earth days. It was discovered in 2006 by the Imaging method.
| Host star | Oph 11 |
|---|---|
| Distance | 444.1 light-years (136.2 pc) |
| Orbital period | 20,000 years |
| Orbital radius | 243 AU |
| Radius | 12.3 R⊕ · 1.1 R♃ |
| Mass | 4,450 M⊕ · 14 M♃ |
| Density | 13.1 g/cm³ |
| Surface gravity | 29.4 × Earth |
| Equilibrium temperature | 2,175 K (1,902 °C) |
| Stellar flux received | 0 × Earth |
| Discovery method | Imaging |
| Discovery year | 2006 |
| Discovered by | Gemini Observatory |
Habitable zone
Beyond the habitable zone: it receives only %0 of the light the Earth does, a frozen world.
Its star in the sky
In the planet's sky its star is a disc 5.1 × 10⁻⁴° across: 9.6 × 10⁻⁴ times the Sun as we see it from Earth.
In the sky
A telescope is needed to see it: its apparent magnitude is 19.21. Visible from the whole Southern Hemisphere and north to latitude 66° N. South of latitude 66° S it never sets. It stands highest at midnight in May, the best time to observe it.
Light's journey
The light you see tonight set out around the year 1582. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 7.9 million years.
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.