Exoplanet · gas giant
2MASS J12073346-3932539 b
2MASS J12073346-3932539 b is a gas giant orbiting the star 2MASS J12073346-3932539. It was discovered in 2004 by the Imaging method.
| Host star | 2MASS J12073346-3932539 |
|---|---|
| Distance | 209.7 light-years (64.3 pc) |
| Orbital radius | 46 AU |
| Radius | 15.7 R⊕ · 1.4 R♃ |
| Mass | 1,650 M⊕ · 5.2 M♃ |
| Density | 2.35 g/cm³ |
| Surface gravity | 6.71 × Earth |
| Equilibrium temperature | 1,163 K (890 °C) |
| Stellar flux received | 0 × Earth |
| Discovery method | Imaging |
| Discovery year | 2004 |
| Discovered by | Paranal Observatory |
Habitable zone
Beyond the habitable zone: it receives only %0 of the light the Earth does, a frozen world.
Its star in the sky
In the planet's sky its star is a disc 0.0025° across: 0.0048 times the Sun as we see it from Earth.
In the sky
A telescope is needed to see it: its apparent magnitude is 20.18. Visible from the whole Southern Hemisphere and north to latitude 50° N. South of latitude 50° S it never sets. It stands highest at midnight in March, the best time to observe it.
Light's journey
The light you see tonight set out around the year 1816. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.7 million years.
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.