Star · M4V
WISE J032120.91-734758.8
WISE J032120.91-734758.8 is a main-sequence star of spectral type M4V in the constellation Hydrus, 75.0 light-years from the Sun.
| Constellation | Hydrus |
|---|---|
| Distance | 75.0 light-years (23.0 pc) |
| Apparent magnitude | magnitude 26.28 |
| Absolute magnitude | magnitude 24.47 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 2.56 × 10⁻⁷ L☉ |
| Radius | 0.0019 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 3h 21m 20.5s |
| Declination (J2000) | −73° 48′ 02″ |
| Space velocity (relative to the Sun) | 35.7 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 26.28. Visible from the whole Southern Hemisphere and north to latitude 16° N. South of latitude 16° S it never sets. It stands highest at midnight in November, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1951. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.3 million years.
The Sun seen from there
From a planet around WISE J032120.91-734758.8, the Sun would look like a star of magnitude 6.64, in the direction where our sky has the constellation Ursa Minor. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 3167 4.80 light-years
- GJ 2028 9.06 light-years
- GJ 3344 11.1 light-years
- CWISE J014308.73-703359.1 12.0 light-years
- WISEA J053512.01-773829.7 12.9 light-years
- WISEA J040443.50-642030.0 13.3 light-years
- Gl 162.1 13.9 light-years
- κ Ret 14.4 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.