Star · M4V
2MASS J02151451+0453179
2MASS J02151451+0453179 is a main-sequence star of spectral type M4V in the constellation Cetus, 199.0 light-years from the Sun.
| Constellation | Cetus |
|---|---|
| Distance | 199.0 light-years (61.0 pc) |
| Apparent magnitude | magnitude 22.10 |
| Absolute magnitude | magnitude 18.17 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 8.45 × 10⁻⁵ L☉ |
| Radius | 0.0346 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 2h 15m 14.5s |
| Declination (J2000) | +4° 53′ 18″ |
| Space velocity (relative to the Sun) | 38.9 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 22.10. Visible from the whole Northern Hemisphere and south to latitude 85° S. 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 1827. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.5 million years.
The Sun seen from there
From a planet around 2MASS J02151451+0453179, the Sun would look like a star of magnitude 8.76, in the direction where our sky has the constellation Virgo. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 10356 3.86 light-years
- HIP 11005 10.1 light-years
- HIP 10412 11.6 light-years
- HIP 9156 15.6 light-years
- HIP 11338 16.1 light-years
- ξ² Cet 16.7 light-years
- ULAS J021750.35+035803.3 16.7 light-years
- ξ Psc 19.8 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.