Exoplanet · gas giant
DP Leo b
DP Leo b is a gas giant orbiting the star DP Leo. Its year lasts 10,200 Earth days. It was discovered in 2009 by the Eclipse Timing Variations method.
| Host star | DP Leo |
|---|---|
| Distance | 997.0 light-years (305.7 pc) |
| Orbital period | 28 years |
| Orbital radius | 8.19 AU |
| Eccentricity | 0.390 |
| Radius | 12.7 R⊕ · 1.13 R♃ |
| Mass | 2,000 M⊕ · 6.28 M♃ |
| Density | 5.35 g/cm³ |
| Surface gravity | 12.4 × Earth |
| Equilibrium temperature | 24 K (-249 °C) |
| Stellar flux received | 1.00 × 10⁻⁴ × Earth |
| Discovery method | Eclipse Timing Variations |
| Discovery year | 2009 |
| Discovered by | Yunnan Astronomical Observatory |
Habitable zone
Beyond the habitable zone: it receives only %0.01 of the light the Earth does, a frozen world.
Its star in the sky
In the planet's sky its star is a disc 7.5 × 10⁻⁴° across: 0.0014 times the Sun as we see it from Earth.
In the sky
A telescope is needed to see it: its apparent magnitude is 18.68. Visible from the whole Northern Hemisphere and south to latitude 72° S. North of latitude 72° N it never sets. It stands highest at midnight in March, the best time to observe it.
Light's journey
The light you see tonight set out around the year 1029. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 18 million years.
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.