Star · A1
49 Cnc
49 Cnc is a main-sequence star of spectral type A1 in the constellation Cancer, 501.3 light-years from the Sun.
| Other names | HIP 42917 |
|---|---|
| Constellation | Cancer |
| Distance | 501.3 light-years (153.7 pc) |
| Apparent magnitude | magnitude 5.63 |
| Absolute magnitude | magnitude −0.30 |
| Spectral type | A1 |
| Surface temperature | 11,080 K |
| Luminosity | 185 L☉ |
| Radius | 3.7 R☉ |
| Mass | 4.04 M☉ (estimated) |
| Right ascension (J2000) | 8h 44m 45.0s |
| Declination (J2000) | +10° 04′ 54″ |
| Space velocity (relative to the Sun) | 30.7 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.63). Visible from the whole Northern Hemisphere and south to latitude 80° S. North of latitude 80° 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 1525. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 8.9 million years.
The Sun seen from there
From a planet around 49 Cnc, the Sun would look like a star of magnitude 10.76, in the direction where our sky has the constellation Aquarius. It would be invisible to the naked eye.
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.