Exoplanet · gas giant
KOINTREAU-1 b
KOINTREAU-1 b is a gas giant orbiting the star XEST 17-036. It was discovered in 2026 by the Imaging method.
| Host star | XEST 17-036 |
|---|---|
| Distance | 517.3 light-years (158.6 pc) |
| Orbital radius | 690 AU |
| Radius | 12.4 R⊕ · 1.11 R♃ |
| Mass | 3,370 M⊕ · 10.6 M♃ |
| Density | 9.71 g/cm³ |
| Surface gravity | 21.9 × 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 16.81. 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 November, the best time to observe it.
Light's journey
The light you see tonight set out around the year 1509. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 9.2 million years.
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.