Star · M2V
WISE J200403.17-263751.7
WISE J200403.17-263751.7 is a main-sequence star of spectral type M2V in the constellation Sagittarius, 180.4 light-years from the Sun.
| Constellation | Sagittarius |
|---|---|
| Distance | 180.4 light-years (55.3 pc) |
| Apparent magnitude | magnitude 21.39 |
| Absolute magnitude | magnitude 17.68 |
| Spectral type | M2V |
| Surface temperature | 3,340 K |
| Luminosity | 5.68 × 10⁻⁵ L☉ |
| Radius | 0.0226 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 20h 04m 03.2s |
| Declination (J2000) | −26° 37′ 55″ |
| Space velocity (relative to the Sun) | 160.9 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.39. Visible from the whole Southern Hemisphere and north to latitude 63° N. South of latitude 63° 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 1846. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.2 million years.
The Sun seen from there
From a planet around WISE J200403.17-263751.7, the Sun would look like a star of magnitude 8.54, in the direction where our sky has the constellation Cancer. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 97448 11.2 light-years
- HIP 98351 13.1 light-years
- HIP 98049 17.3 light-years
- HIP 99273 17.4 light-years
- HIP 100633 17.5 light-years
- HIP 97512 17.8 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.