Exoplanet · gas giant
BD+37 3172 b
BD+37 3172 b is a gas giant orbiting the star BD+37 3172. Its year lasts 1,890 Earth days. It was discovered in 2023 by the Radial Velocity method.
| Host star | BD+37 3172 |
|---|---|
| Distance | 1,482 light-years (454.3 pc) |
| Orbital period | 5.17 years |
| Orbital radius | 4.65 AU |
| Eccentricity | 0.590 |
| Radius | 12.4 R⊕ · 1.11 R♃ |
| Mass (minimum) | 3,370 M⊕ · 10.6 M♃ |
| Density | 9.71 g/cm³ |
| Equilibrium temperature | 713 K (440 °C) |
| Stellar flux received | 32 × Earth |
| Discovery method | Radial Velocity |
| Discovery year | 2023 |
| Discovered by | McDonald Observatory |
Habitable zone
Inside the inner edge of the habitable zone: it receives 32 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 5.8° across: 11 times the Sun as we see it from Earth.
In the sky
A telescope is needed to see it: its apparent magnitude is 9.29. Visible from the whole Northern Hemisphere and south to latitude 52° S. North of latitude 52° N it never sets. It stands highest at midnight in June, the best time to observe it.
Light's journey
The light you see tonight set out around the year 544. 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.