Exoplanet · gas giant
RR Cae b
RR Cae b is a gas giant orbiting the star RR Cae. Its year lasts 4,340 Earth days. It was discovered in 2012 by the Eclipse Timing Variations method.
| Host star | RR Cae |
|---|---|
| Distance | 69.1 light-years (21.2 pc) |
| Orbital period | 11.9 years |
| Orbital radius | 5.3 AU |
| Eccentricity | 0.000 |
| Radius | 13 R⊕ · 1.16 R♃ |
| Mass (minimum) | 1,330 M⊕ · 4.2 M♃ |
| Density | 3.34 g/cm³ |
| Equilibrium temperature | 36 K (-237 °C) |
| Stellar flux received | 3.00 × 10⁻⁴ × Earth |
| Discovery method | Eclipse Timing Variations |
| Discovery year | 2012 |
| Discovered by | Leoncito Astronomical Complex |
Habitable zone
Beyond the habitable zone: it receives only %0.03 of the light the Earth does, a frozen world.
Its star in the sky
In the planet's sky its star is a disc 0.019° across: 0.036 times the Sun as we see it from Earth.
In the sky
A telescope is needed to see it: its apparent magnitude is 14.36. Visible from the whole Southern Hemisphere and north to latitude 41° N. South of latitude 41° 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 1957. 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.
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.