Star · G2IV
μ² Cnc
μ² Cnc is a subgiant star of spectral type G2IV in the constellation Cancer, 77.7 light-years from the Sun.
| Other names | HIP 39780 |
|---|---|
| Constellation | Cancer |
| Distance | 77.7 light-years (23.8 pc) |
| Apparent magnitude | magnitude 5.30 |
| Absolute magnitude | magnitude 3.42 |
| Spectral type | G2IV |
| Surface temperature | 5,810 K |
| Luminosity | 3.97 L☉ |
| Radius | 1.97 R☉ |
| Mass | 1.41 M☉ (estimated) |
| Right ascension (J2000) | 8h 07m 45.8s |
| Declination (J2000) | +21° 34′ 54″ |
| Space velocity (relative to the Sun) | 36.9 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.30). Visible from the whole Northern Hemisphere and south to latitude 68° S. North of latitude 68° 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 1948. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.4 million years.
The Sun seen from there
From a planet around μ² Cnc, the Sun would look like a star of magnitude 6.71, in the direction where our sky has the constellation Capricornus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 3471 2.84 light-years
- ULAS J075829.83+222526.7 3.20 light-years
- Tegmine 5.97 light-years
- Gl 305.1 6.64 light-years
- GJ 1110 6.80 light-years
- 2MASS J08234818+2428577 7.49 light-years
- ULAS J074502.79+233240.3 7.92 light-years
- GJ 3484 9.37 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.