Exoplanet · gas giant
HD 284149 AB b
HD 284149 AB b is a gas giant orbiting the star HD 284149 A. It was discovered in 2017 by the Imaging method.
| Host star | HD 284149 A |
|---|---|
| Distance | 384.2 light-years (117.8 pc) |
| Orbital radius | 431 AU |
| Radius | 12 R⊕ · 1.07 R♃ |
| Mass | 8,350 M⊕ · 26.3 M♃ |
| Density | 26.6 g/cm³ |
| Surface gravity | 58 × Earth |
| Equilibrium temperature | 2,395 K (2,122 °C) |
| Stellar flux received | 0 × Earth |
| Discovery method | Imaging |
| Discovery year | 2017 |
| Discovered by | Paranal Observatory |
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 0.0017° across: 0.0032 times the Sun as we see it from Earth.
In the sky
A telescope is needed to see it: its apparent magnitude is 9.57. Visible from the whole Northern Hemisphere and south to latitude 70° S. North of latitude 70° 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 1642. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 6.8 million years.
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.