Exoplanet · gas giant
CWISEP J193518.59-154620.3 b
CWISEP J193518.59-154620.3 b is a gas giant orbiting the star CWISEP J193518.59-154620.3. It was discovered in 2025 by the Imaging method.
| Host star | CWISEP J193518.59-154620.3 |
|---|---|
| Distance | 47.1 light-years (14.4 pc) |
| Orbital radius | 2.48 AU |
| Radius | 12.2 R⊕ · 1.09 R♃ |
| Mass | 4,930 M⊕ · 15.5 M♃ |
| Density | 14.9 g/cm³ |
| Surface gravity | 33.1 × Earth |
| Equilibrium temperature | 390 K (117 °C) |
| Discovery method | Imaging |
| Discovery year | 2025 |
| Discovered by | James Webb Space Telescope (JWST) |
In the sky
A telescope is needed to see it: its apparent magnitude is 23.30. Visible from the whole Southern Hemisphere and north to latitude 74° N. South of latitude 74° S it never sets. It stands highest at midnight in July, the best time to observe it.
Light's journey
The light you see tonight set out around the year 1979. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 835 thousand years.
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.