Exoplanet · gas giant
DH Tau b
DH Tau b is a gas giant orbiting the star DH Tau. It was discovered in 2004 by the Imaging method.
| Host star | DH Tau |
|---|---|
| Distance | 439.8 light-years (134.8 pc) |
| Orbital radius | 330 AU |
| Radius | 30.3 R⊕ · 2.7 R♃ |
| Mass | 3,500 M⊕ · 11 M♃ |
| Density | 0.693 g/cm³ |
| Surface gravity | 3.82 × Earth |
| Equilibrium temperature | 2,200 K (1,927 °C) |
| Stellar flux received | 0 × Earth |
| Discovery method | Imaging |
| Discovery year | 2004 |
| Discovered by | Subaru Telescope |
Habitable zone
Beyond the habitable zone: it receives only %0 of the light the Earth does, a frozen world.
Its star in the sky
In the planet's sky its star is a disc 4.4 × 10⁻⁴° across: 8.2 × 10⁻⁴ times the Sun as we see it from Earth.
In the sky
A telescope is needed to see it: its apparent magnitude is 13.98. Visible from the whole Northern Hemisphere and south to latitude 63° S. North of latitude 63° 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 1586. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 7.8 million years.
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.