Exoplanet · gas giant
psi1 Dra B b
psi1 Dra B b is a gas giant orbiting the star Dziban B. Its year lasts 3,120 Earth days. It was discovered in 2015 by the Radial Velocity method.
| Host star | Dziban B |
|---|---|
| Distance | 74.1 light-years (22.7 pc) |
| Orbital period | 8.53 years |
| Orbital radius | 4.43 AU |
| Eccentricity | 0.400 |
| Radius | 13.5 R⊕ · 1.2 R♃ |
| Mass (minimum) | 486 M⊕ · 1.53 M♃ |
| Density | 1.09 g/cm³ |
| Equilibrium temperature | 159 K (-114 °C) |
| Stellar flux received | 0.108 × Earth |
| Discovery method | Radial Velocity |
| Discovery year | 2015 |
| Discovered by | McDonald Observatory |
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 0.15° across: 0.28 times the Sun as we see it from Earth.
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.81). Visible from the whole Northern Hemisphere and south to latitude 18° S. North of latitude 18° N 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 1952. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.3 million years.
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.