Star · M0V
SIMP J21174252-0611132
SIMP J21174252-0611132 is a main-sequence star of spectral type M0V in the constellation Aquarius, 223.5 light-years from the Sun.
| Constellation | Aquarius |
|---|---|
| Distance | 223.5 light-years (68.5 pc) |
| Apparent magnitude | magnitude 21.90 |
| Absolute magnitude | magnitude 17.72 |
| Spectral type | M0V |
| Surface temperature | 3,660 K |
| Luminosity | 3.11 × 10⁻⁵ L☉ |
| Radius | 0.0139 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 21h 17m 42.7s |
| Declination (J2000) | −6° 11′ 16″ |
| Space velocity (relative to the Sun) | 73.4 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.90. Visible from the whole Southern Hemisphere and north to latitude 84° N. It stands highest at midnight in August, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1803. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.0 million years.
The Sun seen from there
From a planet around SIMP J21174252-0611132, the Sun would look like a star of magnitude 9.01, in the direction where our sky has the constellation Hydra. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 105120 9.34 light-years
- HIP 105734 13.3 light-years
- HIP 105641 13.5 light-years
- 20 Aqr 16.0 light-years
- HIP 105947 16.1 light-years
- 2MASS J21203387-0747208 16.2 light-years
- HIP 105424 16.7 light-years
- HIP 105661 18.0 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.