Exoplanet · gas giant
2MASS J22501512+2325342 b
2MASS J22501512+2325342 b is a gas giant orbiting the star 2MASS J22501512+2325342. It was discovered in 2018 by the Imaging method.
| Host star | 2MASS J22501512+2325342 |
|---|---|
| Distance | 186.7 light-years (57.2 pc) |
| Orbital radius | 518 AU |
| Radius | 11.9 R⊕ · 1.06 R♃ |
| Mass | 9,530 M⊕ · 30 M♃ |
| Density | 31.1 g/cm³ |
| Surface gravity | 67.3 × Earth |
| Equilibrium temperature | 1,600 K (1,327 °C) |
| Stellar flux received | 0 × Earth |
| Discovery method | Imaging |
| Discovery year | 2018 |
| Discovered by | The 2 (Two) Micron All Sky Survey (2MASS) |
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 4.5 × 10⁻⁴° across: 8.4 × 10⁻⁴ times the Sun as we see it from Earth.
In the sky
A telescope is needed to see it: its apparent magnitude is 14.79. Visible from the whole Northern Hemisphere and south to latitude 67° S. North of latitude 67° N it never sets. It stands highest at midnight in August, the best time to observe it.
Light's journey
The light you see tonight set out around the year 1839. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.3 million years.
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.