Star · K0 III
HD 219415
HD 219415 is a giant star of spectral type K0 III in the constellation Cassiopeia, 539.6 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Cassiopeia |
|---|---|
| Distance | 539.6 light-years (165.4 pc) |
| Apparent magnitude | magnitude 9.02 |
| Absolute magnitude | magnitude 2.93 |
| Spectral type | K0 III |
| Surface temperature | 4,820 K |
| Luminosity | 4.17 L☉ |
| Radius | 2.9 R☉ |
| Mass | 1 M☉ |
| Age | 7.2 billion years |
| Metallicity [Fe/H] | -0.04 |
| Right ascension (J2000) | 23h 14m 53.8s |
| Declination (J2000) | +56° 43′ 49″ |
| Space velocity (relative to the Sun) | 84.4 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 9.02. Visible from the whole Northern Hemisphere and south to latitude 33° S. North of latitude 33° 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 1486. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 9.6 million years.
The Sun seen from there
From a planet around HD 219415, the Sun would look like a star of magnitude 10.92, in the direction where our sky has the constellation Centaurus. It would be invisible to the naked eye.
Planets
- HD 219415 b 2,090-day orbit · 13.8 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.