Exoplanet · Neptune-like planet
GJ 3293 c
GJ 3293 c is a Neptune-like planet orbiting the star GJ 3293. Its year lasts 123 Earth days. It was discovered in 2015 by the Radial Velocity method.
| Host star | GJ 3293 |
|---|---|
| Distance | 65.9 light-years (20.2 pc) |
| Orbital period | 123 days |
| Orbital radius | 0.362 AU |
| Eccentricity | 0.110 |
| Radius | 4.87 R⊕ · 0.434 R♃ |
| Mass (minimum) | 21.1 M⊕ · 0.0664 M♃ |
| Density | 1 g/cm³ |
| Equilibrium temperature | 177 K (-97 °C) |
| Stellar flux received | 0.17 × Earth |
| Discovery method | Radial Velocity |
| Discovery year | 2015 |
| Discovered by | La Silla Observatory |
Habitable zone
Beyond the habitable zone: it receives only %17 of the light the Earth does, a frozen world.
Its star in the sky
In the planet's sky its star is a disc 0.6° across: 1.1 times the Sun as we see it from Earth.
In the sky
A telescope is needed to see it: its apparent magnitude is 12.00. Visible from the whole Southern Hemisphere and north to latitude 65° N. South of latitude 65° S it never sets. It stands highest at midnight in November, the best time to observe it.
Light's journey
The light you see tonight set out around the year 1960. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.2 million years.
Planets in the same system
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.