Star · K3III
Nembus
Nembus is a giant star of spectral type K3III in the constellation Andromeda, 175.8 light-years from the Sun.
| Other names | 51 And · HIP 7607 |
|---|---|
| Constellation | Andromeda |
| Distance | 175.8 light-years (53.9 pc) |
| Apparent magnitude | magnitude 3.59 |
| Absolute magnitude | magnitude −0.07 |
| Spectral type | K3III |
| Surface temperature | 4,170 K |
| Luminosity | 220 L☉ |
| Radius | 28.4 R☉ |
| Mass | 4.24 M☉ (estimated) |
| Right ascension (J2000) | 1h 37m 59.6s |
| Declination (J2000) | +48° 37′ 42″ |
| Space velocity (relative to the Sun) | 36.6 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 3.59). Visible from the whole Northern Hemisphere and south to latitude 41° S. North of latitude 41° N it never sets. It stands highest at midnight in October, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1850. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.1 million years.
The Sun seen from there
From a planet around Nembus, the Sun would look like a star of magnitude 8.49, in the direction where our sky has the constellation Centaurus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 6701 8.70 light-years
- HIP 8370 8.97 light-years
- HIP 8044 11.5 light-years
- HIP 7221 14.2 light-years
- HIP 7924 16.6 light-years
- HIP 7705 16.8 light-years
- HIP 7037 17.6 light-years
- 2MASS J01472702+4731142 17.6 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.