Exoplanet · Neptune-like planet
HD 147379 b
HD 147379 b is a Neptune-like planet orbiting the star HD 147379. Its year lasts 86.6 Earth days. It was discovered in 2017 by the Radial Velocity method.
| Host star | HD 147379 |
|---|---|
| Distance | 35.1 light-years (10.8 pc) |
| Orbital period | 86.6 days |
| Orbital radius | 0.319 AU |
| Eccentricity | 0.063 |
| Radius | 4.94 R⊕ · 0.441 R♃ |
| Mass (minimum) | 21.6 M⊕ · 0.068 M♃ |
| Density | 0.985 g/cm³ |
| Equilibrium temperature | 277 K (4 °C) |
| Stellar flux received | 0.785 × Earth |
| Discovery method | Radial Velocity |
| Discovery year | 2017 |
| Discovered by | Calar Alto Observatory |
Habitable zone
Inside its star's habitable zone: it receives enough light for liquid water to exist on its surface under a suitable atmosphere.
Its star in the sky
In the planet's sky its star is a disc 1° across: 2 times the Sun as we see it from Earth.
In the sky
Too faint for the naked eye (magnitude 8.61); binoculars will find it. Visible from the whole Northern Hemisphere and south to latitude 23° S. North of latitude 23° N 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 1991. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 623 thousand years.
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.