Exoplanet · gas giant
KOINTREAU-4 b
KOINTREAU-4 b is a gas giant orbiting the star 2MASS J16262785-2625152. It was discovered in 2026 by the Imaging method.
| Host star | 2MASS J16262785-2625152 |
|---|---|
| Distance | 474.3 light-years (145.4 pc) |
| Orbital radius | 182 AU |
| Radius | 12.2 R⊕ · 1.09 R♃ |
| Mass | 4,860 M⊕ · 15.3 M♃ |
| Density | 14.7 g/cm³ |
| Surface gravity | 32.7 × Earth |
| Discovery method | Imaging |
| Discovery year | 2026 |
| Discovered by | W. M. Keck Observatory |
In the sky
A telescope is needed to see it: its apparent magnitude is 15.90. Visible from the whole Southern Hemisphere and north to latitude 64° N. South of latitude 64° 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 the year 1552. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 8.4 million years.
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.