Star · K0
HD 19615
HD 19615 is a supergiant star of spectral type K0 in the constellation Cassiopeia, 861.5 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | HIP 15135 |
|---|---|
| Constellation | Cassiopeia |
| Distance | 861.5 light-years (264.1 pc) |
| Apparent magnitude | magnitude 6.57 |
| Absolute magnitude | magnitude −0.54 |
| Spectral type | K0 |
| Surface temperature | 4,260 K |
| Luminosity | 327 L☉ |
| Radius | 32.3 R☉ |
| Mass | 1.1 M☉ |
| Age | 6.7 billion years |
| Metallicity [Fe/H] | -0.31 |
| Right ascension (J2000) | 3h 15m 07.5s |
| Declination (J2000) | +73° 52′ 05″ |
| Space velocity (relative to the Sun) | 52.3 km/s |
In the sky
Too faint for the naked eye (magnitude 6.57); binoculars will find it. Visible from the whole Northern Hemisphere and south to latitude 16° S. North of latitude 16° N it never sets. It stands highest at midnight in November, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1165. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 15 million years.
The Sun seen from there
From a planet around HD 19615, the Sun would look like a star of magnitude 11.94, in the direction where our sky has the constellation Apus. It would be invisible to the naked eye.
Planets
- HD 19615 b 402-day orbit · 12.6 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.