Star · M4V
SDSS J234034.42-001351.6
SDSS J234034.42-001351.6 is a main-sequence star of spectral type M4V in the constellation Pisces, 280.5 light-years from the Sun.
| Constellation | Pisces |
|---|---|
| Distance | 280.5 light-years (86.0 pc) |
| Apparent magnitude | magnitude 21.96 |
| Absolute magnitude | magnitude 17.29 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 1.91 × 10⁻⁴ L☉ |
| Radius | 0.052 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 23h 40m 34.4s |
| Declination (J2000) | −0° 13′ 51″ |
| Space velocity (relative to the Sun) | 60.0 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.96. Visible from the whole Southern Hemisphere and north to latitude 90° N. 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 1746. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 5.0 million years.
The Sun seen from there
From a planet around SDSS J234034.42-001351.6, the Sun would look like a star of magnitude 9.50, 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 116756 7.29 light-years
- HIP 115891 15.8 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.