Star · M4V
PSO J357.8314+49.6330
PSO J357.8314+49.6330 is a main-sequence star of spectral type M4V in the constellation Cassiopeia, 101.1 light-years from the Sun.
| Constellation | Cassiopeia |
|---|---|
| Distance | 101.1 light-years (31.0 pc) |
| Apparent magnitude | magnitude 24.04 |
| Absolute magnitude | magnitude 21.58 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 3.65 × 10⁻⁶ L☉ |
| Radius | 0.0072 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 23h 51m 19.9s |
| Declination (J2000) | +49° 38′ 01″ |
| Space velocity (relative to the Sun) | 59.0 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 24.04. Visible from the whole Northern Hemisphere and south to latitude 40° S. North of latitude 40° N it never sets. It stands highest at midnight in September, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1925. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.8 million years.
The Sun seen from there
From a planet around PSO J357.8314+49.6330, the Sun would look like a star of magnitude 7.29, 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):
- PSO J002.0878+52.0687 11.5 light-years
- HIP 115473 11.9 light-years
- GJ 4315A 12.4 light-years
- HIP 114385 12.4 light-years
- HIP 115470 12.6 light-years
- GJ 4349 12.8 light-years
- PSO J004.7148+51.8918 12.8 light-years
- WISEA J002810.59+521853.1 14.5 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.