Exoplanet · gas giant
PDS 70 b
PDS 70 b is a gas giant orbiting the star PDS 70. Its year lasts 43,500 Earth days. It was discovered in 2018 by the Imaging method.
| Host star | PDS 70 |
|---|---|
| Distance | 368.8 light-years (113.1 pc) |
| Orbital period | 119 years |
| Orbital radius | 20.8 AU |
| Eccentricity | 0.170 |
| Radius | 22 R⊕ · 1.96 R♃ |
| Mass | 1,020 M⊕ · 3.2 M♃ |
| Density | 0.527 g/cm³ |
| Surface gravity | 2.11 × Earth |
| Equilibrium temperature | 1,392 K (1,119 °C) |
| Stellar flux received | 8.00 × 10⁻⁴ × Earth |
| Discovery method | Imaging |
| Discovery year | 2018 |
| Discovered by | Paranal Observatory |
Habitable zone
Beyond the habitable zone: it receives only %0.08 of the light the Earth does, a frozen world.
Its star in the sky
In the planet's sky its star is a disc 0.032° across: 0.061 times the Sun as we see it from Earth.
In the sky
A telescope is needed to see it: its apparent magnitude is 12.03. Visible from the whole Southern Hemisphere and north to latitude 49° N. South of latitude 49° S it never sets. It stands highest at midnight in April, the best time to observe it.
Light's journey
The light you see tonight set out around the year 1657. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 6.5 million years.
Planets in the same system
- PDS 70 c 22.2 R⊕
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.