Exoplanet · gas giant
2MASS J21252752-8138278 b
2MASS J21252752-8138278 b is a gas giant orbiting the star 2MASS J21252752-8138278. It was discovered in 2024 by the Imaging method.
| Host star | 2MASS J21252752-8138278 |
|---|---|
| Distance | 111.3 light-years (34.1 pc) |
| Orbital radius | 7,490 AU |
| Radius | 12.4 R⊕ · 1.11 R♃ |
| Mass | 3,810 M⊕ · 12 M♃ |
| Density | 11 g/cm³ |
| Surface gravity | 24.8 × Earth |
| Equilibrium temperature | 1,616 K (1,343 °C) |
| Stellar flux received | 0 × Earth |
| Discovery method | Imaging |
| Discovery year | 2024 |
| Discovered by | European Space Agency (ESA) Gaia Satellite |
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 4.8 × 10⁻⁵° across: 9.0 × 10⁻⁵ times the Sun as we see it from Earth.
In the sky
A telescope is needed to see it: its apparent magnitude is 11.97. Visible from the whole Southern Hemisphere and north to latitude 8° N. South of latitude 8° S it never sets.
Light's journey
The light you see tonight set out around the year 1915. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.0 million years.
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.