Exoplanet · mini-Neptune
GJ 514 b
GJ 514 b is a mini-Neptune orbiting the star GJ 514. Its year lasts 140 Earth days. It was discovered in 2022 by the Radial Velocity method.
| Host star | GJ 514 |
|---|---|
| Distance | 24.8 light-years (7.62 pc) |
| Orbital period | 140 days |
| Orbital radius | 0.422 AU |
| Eccentricity | 0.450 |
| Radius | 2.13 R⊕ · 0.19 R♃ |
| Mass (minimum) | 5.2 M⊕ · 0.0164 M♃ |
| Density | 2.96 g/cm³ |
| Equilibrium temperature | 202 K (-71 °C) |
| Stellar flux received | 0.28 × Earth |
| Discovery method | Radial Velocity |
| Discovery year | 2022 |
| Discovered by | Multiple Observatories |
Habitable zone
Beyond the habitable zone: it receives only %28 of the light the Earth does, a frozen world.
Its star in the sky
In the planet's sky its star is a disc 0.63° across: 1.2 times the Sun as we see it from Earth.
In the sky
A telescope is needed to see it: its apparent magnitude is 9.05. Visible from the whole Northern Hemisphere and south to latitude 80° S. North of latitude 80° N 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 2001. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 441 thousand years.
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.