Exoplanet · gas giant
NGTS-38 b
NGTS-38 b is a gas giant orbiting the star NGTS-38. Its year lasts 181 Earth days. It was discovered in 2026 by the Transit method.
| Host star | NGTS-38 |
|---|---|
| Distance | 876.2 light-years (268.6 pc) |
| Orbital period | 181 days |
| Orbital radius | 0.697 AU |
| Eccentricity | 0.309 |
| Radius | 12.1 R⊕ · 1.08 R♃ |
| Mass | 1,520 M⊕ · 4.77 M♃ |
| Density | 4.67 g/cm³ |
| Surface gravity | 10.3 × Earth |
| Equilibrium temperature | 457 K (184 °C) |
| Stellar flux received | 10.1 × Earth |
| Discovery method | Transit |
| Discovery year | 2026 |
| Discovered by | Transiting Exoplanet Survey Satellite (TESS) |
Habitable zone
Inside the inner edge of the habitable zone: it receives 10.1 times the light the Earth does, too hot to keep liquid water on its surface.
Its star in the sky
In the planet's sky its star is a disc 1.4° across: 2.7 times the Sun as we see it from Earth.
In the sky
A telescope is needed to see it: its apparent magnitude is 10.29. Visible from the whole Southern Hemisphere and north to latitude 61° N. South of latitude 61° S it never sets. It stands highest at midnight in January, the best time to observe it.
Light's journey
The light you see tonight set out around the year 1150. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 16 million years.
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.