Star · K0.5 V
HD 7924
HD 7924 is a main-sequence star of spectral type K0.5 V in the constellation Cassiopeia, 55.5 light-years from the Sun. It is orbited by 3 confirmed exoplanet(s).
| Other names | Gl 56.5 · HIP 6379 |
|---|---|
| Constellation | Cassiopeia |
| Distance | 55.5 light-years (17.0 pc) |
| Apparent magnitude | magnitude 7.17 |
| Absolute magnitude | magnitude 6.02 |
| Spectral type | K0.5 V |
| Surface temperature | 5,130 K |
| Luminosity | 0.392 L☉ |
| Radius | 0.78 R☉ |
| Mass | 0.65 M☉ |
| Age | 0.9 billion years |
| Metallicity [Fe/H] | -0.21 |
| Right ascension (J2000) | 1h 21m 59.1s |
| Declination (J2000) | +76° 42′ 37″ |
| Space velocity (relative to the Sun) | 23.1 km/s |
In the sky
Too faint for the naked eye (magnitude 7.17); binoculars will find it. Visible from the whole Northern Hemisphere and south to latitude 13° S. North of latitude 13° N it never sets.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1971. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 984 thousand years.
The Sun seen from there
From a planet around HD 7924, the Sun would look like a star of magnitude 5.98, in the direction where our sky has the constellation Chamaeleon. It would be visible to the naked eye.
Planets
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.