Star · K0
HD 216536
HD 216536 is a supergiant star of spectral type K0 in the constellation Lacerta, 1,212 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Lacerta |
|---|---|
| Distance | 1,212 light-years (371.6 pc) |
| Apparent magnitude | magnitude 9.36 |
| Absolute magnitude | magnitude 1.51 |
| Spectral type | K0 |
| Surface temperature | 4,640 K |
| Luminosity | 63.1 L☉ |
| Radius | 9.83 R☉ |
| Mass | 0.81 M☉ |
| Age | 3.8 billion years |
| Metallicity [Fe/H] | -0.17 |
| Right ascension (J2000) | 22h 53m 04.0s |
| Declination (J2000) | +44° 28′ 40″ |
| Space velocity (relative to the Sun) | 18.0 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 9.36. Visible from the whole Northern Hemisphere and south to latitude 46° S. North of latitude 46° N it never sets. It stands highest at midnight in September, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 814. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 22 million years.
The Sun seen from there
From a planet around HD 216536, the Sun would look like a star of magnitude 12.68, in the direction where our sky has the constellation Vela. It would be invisible to the naked eye.
Planets
- HD 216536 b 149-day orbit · 13.8 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.