Star · M3V
DENIS-P J1909081-193748
DENIS-P J1909081-193748 is a main-sequence star of spectral type M3V in the constellation Sagittarius, 71.2 light-years from the Sun.
| Constellation | Sagittarius |
|---|---|
| Distance | 71.2 light-years (21.8 pc) |
| Apparent magnitude | magnitude 22.02 |
| Absolute magnitude | magnitude 20.32 |
| Spectral type | M3V |
| Surface temperature | 3,150 K |
| Luminosity | 7.50 × 10⁻⁶ L☉ |
| Radius | 0.00922 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 19h 09m 08.2s |
| Declination (J2000) | −19° 37′ 51″ |
| Space velocity (relative to the Sun) | 16.6 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 22.02. Visible from the whole Southern Hemisphere and north to latitude 70° N. South of latitude 70° 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 1955. 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 DENIS-P J1909081-193748, the Sun would look like a star of magnitude 6.53, 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):
- Gl 747.1 7.04 light-years
- CWISE J185104.34-245232.1 8.32 light-years
- HIP 96710 12.3 light-years
- Gl 741 12.8 light-years
- HIP 93072 13.4 light-years
- Kaus Borealis 15.0 light-years
- WISEA J190005.76-310810.9 15.7 light-years
- GJ 2139 15.7 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.