Exoplanet · gas giant
HATS-64 b
HATS-64 b is a gas giant orbiting the star HATS-64. Its year lasts 4.91 Earth days. It was discovered in 2018 by the Transit method.
| Host star | HATS-64 |
|---|---|
| Distance | 3,523 light-years (1,080 pc) |
| Orbital period | 4.91 days |
| Orbital radius | 0.0656 AU |
| Eccentricity | 0.151 |
| Radius | 18.8 R⊕ · 1.68 R♃ |
| Mass | 305 M⊕ · 0.96 M♃ |
| Density | 0.245 g/cm³ |
| Surface gravity | 0.861 × Earth |
| Equilibrium temperature | 1,793 K (1,520 °C) |
| Stellar flux received | 1,710 × Earth |
| Discovery method | Transit |
| Discovery year | 2018 |
| Discovered by | HATSouth |
Habitable zone
Inside the inner edge of the habitable zone: it receives 1,710 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 17° across: 32 times the Sun as we see it from Earth.
In the sky
A telescope is needed to see it: its apparent magnitude is 13.05. Visible from the whole Southern Hemisphere and north to latitude 60° N. South of latitude 60° S it never sets. It stands highest at midnight in February, the best time to observe it.
Light's journey
The light you see tonight set out around 1498 BC. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 62 million years.
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.