Exoplanet · gas giant
COCONUTS-2 b
COCONUTS-2 b is a gas giant orbiting the star COCONUTS-2 A. Its year lasts 4.02 × 10⁸ Earth days. It was discovered in 2021 by the Imaging method.
| Host star | COCONUTS-2 A |
|---|---|
| Distance | 35.5 light-years (10.9 pc) |
| Orbital period | 1.10 × 10⁶ years |
| Orbital radius | 7,510 AU |
| Radius | 12.6 R⊕ · 1.12 R♃ |
| Mass | 2,380 M⊕ · 7.5 M♃ |
| Density | 6.58 g/cm³ |
| Surface gravity | 15.1 × Earth |
| Equilibrium temperature | 493 K (220 °C) |
| Stellar flux received | 0 × Earth |
| Discovery method | Imaging |
| Discovery year | 2021 |
| Discovered by | NASA Infrared Telescope Facility (IRTF) |
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 2.6 × 10⁻⁵° across: 4.9 × 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 11.65. Visible from the whole Southern Hemisphere and north to latitude 13° N. South of latitude 13° S it never sets.
Light's journey
The light you see tonight set out around the year 1990. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 630 thousand years.
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.