Exoplanet · gas giant
BD+49 828 b
BD+49 828 b is a gas giant orbiting the star BD+49 828. Its year lasts 2,590 Earth days. It was discovered in 2015 by the Radial Velocity method.
| Host star | BD+49 828 |
|---|---|
| Distance | 1,442 light-years (442.0 pc) |
| Orbital period | 7.09 years |
| Orbital radius | 4.2 AU |
| Eccentricity | 0.350 |
| Radius | 13.5 R⊕ · 1.2 R♃ |
| Mass (minimum) | 509 M⊕ · 1.6 M♃ |
| Density | 1.14 g/cm³ |
| Equilibrium temperature | 321 K (47 °C) |
| Stellar flux received | 1.67 × Earth |
| Discovery method | Radial Velocity |
| Discovery year | 2015 |
| Discovered by | McDonald Observatory |
Habitable zone
At the edge of the habitable zone (within the optimistic limits): liquid water would be possible only with a favourable atmosphere.
Its star in the sky
In the planet's sky its star is a disc 0.96° across: 1.8 times the Sun as we see it from Earth.
In the sky
A telescope is needed to see it: its apparent magnitude is 9.51. Visible from the whole Northern Hemisphere and south to latitude 40° S. North of latitude 40° 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 584. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 26 million years.
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.