Star · M4V
WISEPC J231939.13-184404.3
WISEPC J231939.13-184404.3 is a main-sequence star of spectral type M4V in the constellation Aquarius, 40.4 light-years from the Sun.
| Constellation | Aquarius |
|---|---|
| Distance | 40.4 light-years (12.4 pc) |
| Apparent magnitude | magnitude 24.93 |
| Absolute magnitude | magnitude 24.46 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 2.58 × 10⁻⁷ L☉ |
| Radius | 0.00191 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 23h 19m 39.1s |
| Declination (J2000) | −18° 44′ 06″ |
| Space velocity (relative to the Sun) | 9.1 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 24.93. Visible from the whole Southern Hemisphere and north to latitude 71° N. South of latitude 71° S 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 1986. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 717 thousand years.
The Sun seen from there
From a planet around WISEPC J231939.13-184404.3, the Sun would look like a star of magnitude 5.30, in the direction where our sky has the constellation Leo. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- Gl 897B 3.13 light-years
- GJ 4352 4.40 light-years
- Gl 898 7.55 light-years
- 2MASS J23185497-1301106 9.28 light-years
- 2MASSI J2356547-155310 9.88 light-years
- GJ 4288A 9.92 light-years
- TRAPPIST-1 9.93 light-years
- Gl 891 10.0 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.