Star · A1V
50 Cnc
50 Cnc is a main-sequence star of spectral type A1V in the constellation Cancer, 181.4 light-years from the Sun.
| Other names | HIP 43121 |
|---|---|
| Constellation | Cancer |
| Distance | 181.4 light-years (55.6 pc) |
| Apparent magnitude | magnitude 5.89 |
| Absolute magnitude | magnitude 2.16 |
| Spectral type | A1V |
| Surface temperature | 8,840 K |
| Luminosity | 13.6 L☉ |
| Radius | 1.57 R☉ |
| Mass | 1.92 M☉ (estimated) |
| Right ascension (J2000) | 8h 46m 56.0s |
| Declination (J2000) | +12° 06′ 36″ |
| Space velocity (relative to the Sun) | 31.6 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.89). Visible from the whole Northern Hemisphere and south to latitude 78° S. North of latitude 78° N it never sets. It stands highest at midnight in January, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1845. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.2 million years.
The Sun seen from there
From a planet around 50 Cnc, the Sun would look like a star of magnitude 8.56, in the direction where our sky has the constellation Aquarius. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- SIMP J08511977+1043470 7.17 light-years
- Acubens 9.56 light-years
- HIP 42112 13.9 light-years
- ULAS J084211.68+093611.9 14.6 light-years
- HIP 43751 15.5 light-years
- HIP 42084 15.8 light-years
- SDSS J085602.05+124014.3 16.6 light-years
- SDSS J084036.04+143424.3 17.2 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.