Exoplanet · gas giant
Lupus-TR-3 b
Lupus-TR-3 b is a gas giant orbiting the star Lupus-TR-3. Its year lasts 3.91 Earth days. It was discovered in 2007 by the Transit method.
| Host star | Lupus-TR-3 |
|---|---|
| Distance | 2,523 light-years (773.4 pc) |
| Orbital period | 3.91 days |
| Orbital radius | 0.0464 AU |
| Eccentricity | 0.000 |
| Radius | 9.98 R⊕ · 0.89 R♃ |
| Mass | 257 M⊕ · 0.81 M♃ |
| Density | 1.4 g/cm³ |
| Surface gravity | 2.59 × Earth |
| Equilibrium temperature | 1,014 K (740 °C) |
| Stellar flux received | 16 × Earth |
| Discovery method | Transit |
| Discovery year | 2007 |
| Discovered by | Multiple Observatories |
Habitable zone
Inside the inner edge of the habitable zone: it receives 16 times the light the Earth does, too hot to keep liquid water on its surface.
Its star in the sky
In the planet's sky its star is a disc 9.4° across: 18 times the Sun as we see it from Earth.
In the sky
A telescope is needed to see it: its apparent magnitude is 19.62. Visible from the whole Southern Hemisphere and north to latitude 47° N. South of latitude 47° S 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 498 BC. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 45 million years.
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.