Exoplanet · gas giant
HATS-63 b
HATS-63 b is a gas giant orbiting the star HATS-63. Its year lasts 3.06 Earth days. It was discovered in 2018 by the Transit method.
| Host star | HATS-63 |
|---|---|
| Distance | 2,033 light-years (623.2 pc) |
| Orbital period | 3.06 days |
| Orbital radius | 0.0403 AU |
| Eccentricity | 0.136 |
| Radius | 13.5 R⊕ · 1.21 R♃ |
| Mass | 305 M⊕ · 0.96 M♃ |
| Density | 0.67 g/cm³ |
| Surface gravity | 1.67 × Earth |
| Equilibrium temperature | 1,398 K (1,125 °C) |
| Stellar flux received | 634 × Earth |
| Discovery method | Transit |
| Discovery year | 2018 |
| Discovered by | HATSouth |
Habitable zone
Inside the inner edge of the habitable zone: it receives 634 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 14° across: 26 times the Sun as we see it from Earth.
In the sky
A telescope is needed to see it: its apparent magnitude is 13.99. Visible from the whole Southern Hemisphere and north to latitude 62° N. South of latitude 62° S 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 8 BC. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 36 million years.
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.