Exoplanet · gas giant
V0391 Peg b
V0391 Peg b is a gas giant orbiting the star V0391 Peg. Its year lasts 1,170 Earth days. It was discovered in 2007 by the Pulsation Timing Variations method.
| Host star | V0391 Peg |
|---|---|
| Distance | 3,901 light-years (1,196 pc) |
| Orbital period | 3.2 years |
| Orbital radius | 1.7 AU |
| Eccentricity | 0.000 |
| Radius | 13.1 R⊕ · 1.17 R♃ |
| Mass (minimum) | 1,020 M⊕ · 3.2 M♃ |
| Density | 2.49 g/cm³ |
| Equilibrium temperature | 520 K (247 °C) |
| Stellar flux received | 9.38 × Earth |
| Discovery method | Pulsation Timing Variations |
| Discovery year | 2007 |
| Discovered by | Multiple Observatories |
Habitable zone
Inside the inner edge of the habitable zone: it receives 9.38 times the light the Earth does, too hot to keep liquid water on its surface.
Its star in the sky
In the planet's sky its star is a disc 0.072° across: 0.14 times the Sun as we see it from Earth.
In the sky
A telescope is needed to see it: its apparent magnitude is 14.77. Visible from the whole Northern Hemisphere and south to latitude 64° S. North of latitude 64° N it never sets. It stands highest at midnight in August, the best time to observe it.
Light's journey
The light you see tonight set out around 1876 BC. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 69 million years.
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.