Exoplanet · Neptune-like planet
DS Tuc A b
DS Tuc A b is a Neptune-like planet orbiting the star DS Tuc A. Its year lasts 8.14 Earth days. It was discovered in 2019 by the Transit method.
| Host star | DS Tuc A |
|---|---|
| Distance | 143.7 light-years (44.1 pc) |
| Orbital period | 8.14 days |
| Eccentricity | 0.000 |
| Radius | 5.7 R⊕ · 0.509 R♃ |
| Mass | 413 M⊕ · 1.3 M♃ |
| Surface gravity | 12.7 × Earth |
| Equilibrium temperature | 850 K (577 °C) |
| Stellar flux received | 318 × Earth |
| Discovery method | Transit |
| Discovery year | 2019 |
| Discovered by | Transiting Exoplanet Survey Satellite (TESS) |
Habitable zone
Inside the inner edge of the habitable zone: it receives 318 times the light the Earth does, too hot to keep liquid water on its surface.
In the sky
Too faint for the naked eye (magnitude 8.17); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 21° N. South of latitude 21° S it never sets. It stands highest at midnight in September, the best time to observe it.
Light's journey
The light you see tonight set out around the year 1882. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.5 million years.
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.