Star · M4V
WISEA J190005.76-310810.9
WISEA J190005.76-310810.9 is a main-sequence star of spectral type M4V in the constellation Sagittarius, 76.0 light-years from the Sun.
| Constellation | Sagittarius |
|---|---|
| Distance | 76.0 light-years (23.3 pc) |
| Apparent magnitude | magnitude 25.90 |
| Absolute magnitude | magnitude 24.06 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 3.72 × 10⁻⁷ L☉ |
| Radius | 0.0023 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 19h 00m 05.8s |
| Declination (J2000) | −31° 08′ 08″ |
| Space velocity (relative to the Sun) | 34.9 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 25.90. Visible from the whole Southern Hemisphere and north to latitude 59° N. South of latitude 59° S it never sets. It stands highest at midnight in July, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1950. 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 WISEA J190005.76-310810.9, the Sun would look like a star of magnitude 6.67, in the direction where our sky has the constellation Gemini. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- CWISE J185104.34-245232.1 9.74 light-years
- Kaus Borealis 12.0 light-years
- GJ 1239 12.3 light-years
- Ascella 12.4 light-years
- GJ 4104 12.4 light-years
- GJ 4087 13.3 light-years
- Gl 755 13.3 light-years
- HIP 96710 13.6 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.