Exoplanet · gas giant
2MASS J19383260+4603591 b
2MASS J19383260+4603591 b is a gas giant orbiting the star 2MASS J19383260+4603591. Its year lasts 406 Earth days. It was discovered in 2015 by the Eclipse Timing Variations method.
| Host star | 2MASS J19383260+4603591 |
|---|---|
| Distance | 1,293 light-years (396.3 pc) |
| Orbital period | 406 days |
| Orbital radius | 0.92 AU |
| Eccentricity | 0.330 |
| Radius | 13.4 R⊕ · 1.2 R♃ |
| Mass | 604 M⊕ · 1.9 M♃ |
| Density | 1.38 g/cm³ |
| Surface gravity | 3.36 × Earth |
| Equilibrium temperature | 670 K (397 °C) |
| Stellar flux received | 33.3 × Earth |
| Discovery method | Eclipse Timing Variations |
| Discovery year | 2015 |
| Discovered by | Kepler |
Habitable zone
Inside the inner edge of the habitable zone: it receives 33.3 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 0.12° across: 0.22 times the Sun as we see it from Earth.
In the sky
A telescope is needed to see it: its apparent magnitude is 12.59. Visible from the whole Northern Hemisphere and south to latitude 44° S. North of latitude 44° N it never sets. It stands highest at midnight in July, the best time to observe it.
Light's journey
The light you see tonight set out around the year 733. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 23 million years.
Planets in the same system
- Kepler-451 d 43-day orbit · 13.5 R⊕
- Kepler-451 c 1,460-day orbit · 13.5 R⊕
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.